this questions pls help

This Questions Pls Help

Answers

Answer 1

Answer:

1. True

2. False

3. True

4. True

5. False

Answer 2
True, False, True, True, False :) !

Related Questions

Maria's mother was deported 6 months ago, and she is staying with a cousin. She has to share a room with 3 other children and is very discouraged. She has little energy to do much of anything, and she cries a lot. She is probably suffering from?

Answers

The answer would be A.

She is probably suffering from a major depression. Depression results in emotional change and loss of interest in previously appreciated activities.

What is depression?

Depression is a frequent and significant medical ailment that has an adverse effect on how you feel, think, and act. It can cause a number of mental and physical difficulties, as well as a loss in your ability.

According to epidemiological research, a hereditary element is involved in 30% to 40% of instances of bipolar illness. As a result, environmental influences have a larger role in the development of depression.

Maria's mother was deported 6 months ago, and she is staying with a cousin. She has to share a room with 3 other children and is very discouraged.

She has little energy to do much of anything, and she cries a lot, she is probably suffering from a major depression.]

Hence, option A is correct.

To learn more about the depression, refer to the link;

https://brainly.com/question/9790235

#SPJ2

In a car collision, is it better for the passenger if the change in momentum is over a short period of time or a long period of time?

Answers

Explanation:

The force on the passenger will be F = ma

Here, m does not change, but a is the variable.

If the cars slows down very fast, the acceleration will be higher, and thus the force will be higher.

If the acceleration is lower, the force will be lower as well, which would be the most desirable scenario for the passenger.

Which two structures are not found in animal cells?
A) vacioles and ribosomes
B) chloroplasts and ribosomes
C) cell walls and chloroplasts
D) endoplasmic reticulum and cell walls

Answers

Answer:

C

Explanation:

So, lets start off by thinking about what we know is in both cells, and rule out from there.

There are just some basic things you need in eukaryotic cells, those include the following:

Nucleuscell membranemitochondriacytoplasm(dont get confused with chloroplast)Rough and smooth endoplasmic reticulumGolgi vescileGolci apparatusNucleolus(Dont get confused with nulceus)

Here are jsut a few examples of what can be found in both plant and animal cells, however we can already rule out all of the following except for:

C

Because remember, c talks about the chlorplast, which is not the chlorplasm found in both plant anf animal cells, its just the chloroplast found in plant cells.

Although I gave the asnwer to you. Here are some things that are in plant cells that arent in animal cells:

Cell wallvaciolescentral vaciolechlroplastplastids

Animal cells on the other hand, have a few things that plant cells do not as well:

LysomeCentrolsome

Hope this helps! ;)

Boxers wear gloves that are padded to lessen the force of a punch. Calculate the force exerted by a boxing glove on an opponent's face, if the glove and face compress 8.50 cm during a blow in which the 7.00-kg arm and glove are brought to rest from an initial speed of 10.0 m/s. Give your answer in Newtons, do not include the unit in your answer.

Answers

Answer:

F = 4117.64

Explanation:

First, we will calculate the acceleration of the hand, by using the third equation of motion:

[tex]2as = v_f^2 - v_i^2\\[/tex]

where,

a = acceleration = ?

s = distance covered = compression = 8.5 cm = 0.085 m

vf = final speed = 0 m/s

vi = iniial speed = 10 m/s

Therefore,

[tex]2a(0.085\ m) = (0\ m/s)^2-(10\ m/s)^2\\a = - 588.23\ m/s^2[/tex]

negative sign hows deceleration.

Now, we will calculate the force exerted by the hand:

[tex]F = ma = (7\ kg)(588.23\ m/s^2)\\[/tex]

F = 4117.64 N

What is a mechanical advantage?

Answers

The answer is C I think

Answer:

B

Explanation:

 A Mechanical Advantage is when you use a piece of machinery to help you do work, and it is an easy advantage.

I'm stuck between B and C

In the problem, I know the potential energy increases because the height increases.

A block is at the bottom of a frictionless ramp and is given a kick so that it has some initial velocity and starts to slide up the ramp. There
is no air resistance. Which of the following is true of the energy of the block as it slides?
(A) Its potential energy will increase; its kinetic energy will decrease.
(C) Both its potential and kinetic energies will increase.
(B) Its potential energy will decrease; its kinetic energy will increase.
(D) Both its potential and kinetic energies will decrease.

Answers

Answer:

Explanation:

The answer is A. First of all, due to the First Law of Thermodynamics, energy cannot be created or destroyed, it only changes form. That being said, it is impossible for the PE and the KE to both increase or decrease at the same time. The second one starts decreasing, the other starts increasing at the exact same rate. PE exists or is at its highest when an object has the potential to fall to a point lower than it is, and it is at this point where Kinetic energy is the lowest. If this block is kicked UP a ramp, which is odd but there you have it, the potential energy increases as it gets higher off the ground. Because of gravity, and assuming that once the block is kicked, the foot that kicked it is no longer important to it (meaning it's not being pushed up, it's just kicked once and that's it) and it will slow down very quickly. KE exists where there is a great amount of velocity.

The answer is A.

A wheelbarrow can be used to help lift a load, such as a pile of dirt, and then push the load across a distance. A man pushes a wheelbarrow.

Answers

Answer:

B.) a wheel and axle and a lever

Explanation:

P.S - The exact question is -

Given - A wheelbarrow can be used to help lift a load, such as a pile of dirt, and then push the load across a distance. A man pushes a wheelbarrow.

To find - Which simple machines make up a wheelbarrow?

A.) a pulley and an inclined plane

B.) a wheel and axle and a lever

C.) a pulley and a wheel and axle

D.) a lever and a wedge

Proof -

The correct option is - B.) a wheel and axle and a lever

Wheelbarrows are used to carry more goods from place to place by using minimal force as compared when goods are carried by hand.

With this machine, During hauling people can save time.

Answer:

B.) a wheel and axle and a lever

Explanation:

A 200kg bumper car moving 3 m/s collides head on with a 392kg bumper car moving 6m/s. After impact, the larger car continues traveling in the same direction with a velocity of 1.6 m/s . Determine the speed of the other car.

Answers

Answer:

the final speed of the smaller car is 5.624 m/s

Explanation:

Given;

mass of the small car, m₁ = 200 kg

initial velocity of the small car, u₁ = 3 m/s

mass of the larger car, m₂ = 392 kg

initial velocity of the larger car, u₂ = 6 m/s

final velocity of the larger car, v₂ = 1.6 m/s

let the direction of the larger car be positive

let the direction of the smaller car be negative

Apply the principle of conservation of linear momentum to determine the final speed of the smaller car.

m₁u₁ + m₂u₂ = m₁v₁  +  m₂v₂

200(-3)  +  392(6)  = 200v₁   +  392 x 1.6

-600 + 2352  = 200v₁    +  627.2

1752   =  200v₁     +   627.2

1752  -  627.2     =  200v₁

1124.8  = 200v₁

v₁  =  1124.8/200

v₁ = 5.624 m/s

Therefore, the final speed of the smaller car is 5.624 m/s

given a force of 100 N and a acceleration of 5 m/s, what is the mass

Answers

Answer:

[tex]force = mass \times acceleration \\ 100 = m \times 5 \\ m = \frac{100}{5} \\ m = 20 \: kg[/tex]

The answer is 20 kg.

heena wants to measure the volume of a ball that is 24 cm across. How should she set up her equation? v = one-third pi 24 squared (12). v = one-third p 12 squared (24). v = four-thirds pi 24 cubed. v = four-thirds pi 12 cubed.

Answers

Answer:

v = four-thirds pi 12 cubed.

Explanation:

A ball has a spherical shape. The volume of a spherical shape can be calculated using the following formula:

[tex]V = \frac{4}{3} \pi r^3[/tex]

where,

V = Volume of Ball = ?

d = diameter of the ball = length across the ball = 24 cm

r = radius of ball = d/2 = 24 cm/2 = 12 cm

Therefore,

[tex]V = \frac{4}{3}\pi (12)^3[/tex]

Hence, the correct answer is:

v = four-thirds pi 12 cubed.

GIVING BRAINLIEST PLEASE HELP!!
-if you answer correctly ill give you brainliest which will give you 25pts-

Answers

Answer:

b and d :)

Explanation:

Answer:

A, B, And C,

Explanation:

The law of conservation of energy is a physical law that states energy cannot be created or destroyed but may be changed from one form to another. Another way of stating this law of chemistry is to say the total energy of an isolated system remains constant or is conserved within a given frame of reference.

to transmit heat sound or electricity through a medium

Answers

Answer:Electrical conduction is the transfer of electrically charged particles through a medium, such as electricity traveling through the power lines in your house. Sound conduction (or acoustic conduction) is the transfer of sound waves through a medium, such as vibrations from loud music passing through a wall.

Explanation: Trust

Why are solar storms a concern to Earth?

Answers

Solar radiation can cause an EMP effect and knock out electric grids.

If a cart at the top of a hill has 50 newtons of pot. energy what will it have when it comes down?

Answers

Answer:

50 newtons of kenetic energy?? im guessing ngl

Explanation:

A laser pulse of duration 25 ms has a total energy of 1.4 J. The wavelength of this radiation is
567 nm. How many photons are emitted in one pulse? Let 1 eV = 1.60 x 10-19 J, the mass of
an electron m=9.11 10-31
kg, the speed of light c= 3.00 x 108 m/s, and Planck's constant h
= 4.136 10-15 eV .s.

Answers

Answer:

n = 4 x 10¹⁸ photons

Explanation:

First, we will calculate the energy of one photon in the radiation:

[tex]E = \frac{hc}{\lambda}\\\\[/tex]

where,

E = Energy of one photon = ?

h = Plank's Constant = 6.625 x 10⁻³⁴ J.s

c = speed of light = 3 x 10⁸ m/s

λ = wavelength of radiation = 567 nm = 5.67 x 10⁻⁷ m

Therefore,

[tex]E = \frac{(6.625\ x\ 10^{-34}\ J.s)(3\ x\ 10^8\ m/s)}{5.67\ x\ 10^{-7}\ m}[/tex]

E = 3.505 x 10⁻¹⁹ J

Now, the number of photons to make up the total energy can be calculated as follows:

[tex]Total\ Energy = nE\\1.4\ J = n(3.505\ x\ 10^{-19}\ J)\\n = \frac{1.4\ J}{3.505\ x\ 10^{-19}\ J}\\[/tex]

n = 4 x 10¹⁸ photons

particles q1, q2, and q3 are in a straight line. particles q1 = -5.00 x 10^-6 C, q2 = -5.00 x 10^-6 C. .5 between each what is the net force on q3

Answers

Answer:

1.12

Explanation:

Acellus

Answer: +1.12

Explanation:

This answer works for Acellus! :)

A uniform electric field, with a magnitude of 449 N/C, is directed parallel to the positive x-axis. If the potential at x= 4.59 m is 966 V, what is the potential at x= 1.61 m?

Answers

Answer:

2.334‬ kV

Explanation:

Since the electric field strength Ecosθ = -ΔV/Δx = -(V₂ - V₁)/(x₂ - x₁)

where V₁ = potential at x₁ = 966 V, x₁ = 4.59 m, V₂ = potential at x₂ = unknown, x₂ = 1.61 m and θ = angle between E and the x - axis.

Given that E = + 449 N/C and since it is directed parallel to the positive x - axis, θ = 0°

So,

Ecosθ = -ΔV/Δx

Ecos0° = -ΔV/Δx

E = -ΔV/Δx

E = -(V₂ - V₁)/(x₂ - x₁)

making V₂ subject of the formula, we have

-E(x₂ - x₁) = V₂ - V₁

-E(x₂ - x₁) + V₁ = V₂

V₂ = V₁ - E(x₂ - x₁)

Substituting the values of the variables into the equation, we have

V₂ = V₁ - E(x₂ - x₁)

V₂ = 966 V - 449 N/C(1.61 m - 4.59 m)

V₂ = 966 V - 449 N/C(-2.98 m)

V₂ = 966 V + 1,338.02‬ Nm/C

V₂ = 966 V + 1,338.02‬ V

V₂ = ‭2,334.02‬ V

V₂ ≅ ‭2,334‬ V

V₂ = ‭2.334‬ kV

Utility companies charge by the kilowatt-hour. The number of kilowatt-hours used equals the number of kilowatts multiplied by the number of hours an electrical device was used. How long would it take for a 50-watt fan to use 1 kilowatt-hour of electricity? (Hint: 50 watts = 0.05 kilowatts.)

Answers

Answer:

t = 3 minutes

Explanation:

Given that,

Power of fan, P = 50 W

Energy used, E = 1 kWh

We know that,

Energy = Power/time

As, 50 watts = 0.05 kilowatts

So,

[tex]t=\dfrac{P}{E}\\\\t=\dfrac{0.05\ kW}{1\ kWh}\\\\t=0.05\ h[/tex]

or

t = 3 min

So, the required time is equal to 3 minutes.

PWEESE HELPPPP I'LL GIVE BRAINLIEST, (NO LINKS OR I'LL REPORT)
(︶^︶)
A sound wave is made of a series of compressions and
a.
extensions.
c.
rarefactions.
b.
volumes.
d.
refractions.

Answers

Answer:

extensions.

Explanation:

Hope this helps

Answer:

extensions i think because sound waves travel through the air and to our ears so its extended  

Explanation:

Consider these scenarios. A pink box with containing the words Scenario 2 You are about 7 meters away from a metal bar that is struck with a drumstick. The sounds travels through the air to your ear. In which of these scenarios would the sound of the drumstick hitting the metal bar get to you in the least amount of time? Explain your answer.

Answers

Answer:

Scenario 1 will cause the sound of the drumstick hitting the metal bar to reach your ears in the least amount of time.

Explanation:

The sound wave will travel faster in the metal bar than through the air because the speed of sound waves in solids is faster than it is in gases.

Answer:

Scenario 1 will cause the sound of the drumstick hitting the metal bar to reach your ears in the least amount of time.

Explanation:

ifunny is dankreloaded

3.Three resistors of 25.0Ω, 30.0Ω, and 40.0Ω are in a series circuit with a 6.0-volt battery. What is the current in the circuit?

please answer by steps

Answers

Answer:

Current = 0.063 Amperes

Explanation:

Let the three resistors be R1, R2, and R3 respectively.

Given the following data;

R1 = 25.0Ω,

R2 = 30.0Ω

R3 = 40.0Ω

Voltage = 6 Volts

First of all, we would determine the equivalent or total resistance;

Total resistance (in series) = R1 + R2 + R3

Total resistance = 25.0Ω + 30.0Ω + 40.0Ω

Total resistance = 95 Ω

Next, we find the current flowing through the circuit;

Voltage = current * resistance

Substituting into the formula, we have;

6 = current * 95

Current = 6/95

Current = 0.063 Amperes

How can you make two objects with different masses move the same distance

Answers

Answer:

apply more energy to the object with more mass

Explanation:

Suppose you needed to push a 1,500-N sofa up a frictionless ramp with a 30° angle. How much force would you have to apply to the sofa?Show your work below.

Answers

Answer:

1299N

Explanation:

GIven data

Weight W= 1500N

Angle Ф= 30°

The applied force up the frictionless ramp is gotten by applying the formula below

F= WcosФ

substitute

F=1500 cos 30

F = 1500*0.8660

F= 1299N

Hence the applied force is 1299N

The _____ of a mechanical wave is a direct measure of its energy.

speed

frequency

amplitude

hertz

Answers

The answer is amplitude. “Amplitude of a wave is a direct measure of its energy. The amplitude of transverse waves is the maximum distance the medium moves up or down from its rest position.”

The kinetic theory describes the __1__ of particles in matter and the forces of attraction between them. The theory assumes that the volume occupied by a gas is mostly __2__, that the particles of gas are relatively __3__, move __4__ of each other, and are in constant __5__ motion. The __6__ between particles are perfectly elastic so that the total __7__ remains constant. Gas pressure results from the simultaneous collisions of billions of particles with an object. Barometers are used to measure __8__ pressure. Standard conditions are defined as a temperature of __9__ and a pressure of __10__.

Answers

Answer:

1. Motion

2. Empty space

3. Far apart

4. Independently

5. Random or rapid

6. Collision

7. Kinetic energy

8. Atmospheric

9. 273 Kelvin or 0° Celsius

10. 1 atm, 101.3 kPa or 760 mmHg

Explanation:

In science, matter can be defined as anything that has mass and occupies space. Any physical object that is found on earth is typically composed of matter. Matter are known to be made up of atoms and as a result has the property of existing in states.

Generally, matter exists in three (3) distinct or classical phases and these are;

I. Gas.

II. Solid.

III. Liquid.

Filling the missing words or texts in the question, we have;

The kinetic theory describes the motion of particles in matter and the forces of attraction between them. The theory assumes that the volume occupied by a gas is mostly empty space, that the particles of gas are relatively far apart, move independently of each other, and are in constant random or rapid motion. The collision between particles are perfectly elastic so that the total kinetic energy remains constant. Gas pressure results from the simultaneous collisions of billions of particles with an object. Barometers are used to measure atmospheric pressure. Standard conditions are defined as a temperature of 273 Kelvin or 0° Celsius and a pressure of 1 atm, 101.3 kPa or 760 mmHg.

Which of the following statements is true for a ball thrown vertically upward

Answers

What are the word answers?

Help please:A boy weighing 30 kg rides a scooter. The total kinetic energy of the boy and the scooter is 437.6 J. Determine the speed at which the boy moves if the mass of the scooter is 5kg?​

Answers

Answer:

5 m/s

Explanation:

Mass of the boy + scooter system =  35 kg

Kinetic Energy =  437.6 J

437.6 = [tex]\frac{1}{2} 35 {v}^2[/tex]

25.0057143 = [tex]v^{2}[/tex]

v = 5 m/s

Green light (520 nm) enters glass with n = 1.52. What is the wavelength of light that enters the glass?

Answers

Answer:

answer=1.97×10^8

Explanation:

will u mark me brainliest?

Green light (520 nm) enters glass with n = 1.52, the wavelength of light that enters the glass is 520 nm.

To find the wavelength of light that enters the glass, we can use Snell's Law, which relates the angles and indices of refraction for light passing through a boundary between two mediums:

n₁ × sin(θ₁) = n₂ × sin(θ₂)

In this scenario, we can assume that the angle of incidence is zero degrees (the light is entering the glass perpendicular to the surface). Therefore, sin(θ₁) becomes sin(0) which is 0.

Using Snell's Law, we have:

n₁ × sin(θ₁) = n₂ × sin(θ₂)

1 × 0 = 1.52 × sin(θ₂)

The wavelength of light that enters the glass remains the same as the initial wavelength in air, which is 520 nm (nanometers).

Thus, the wavelength of light that enters the glass is 520 nm.

For more details regarding wavelength, visit:

https://brainly.com/question/31143857

#SPJ5

Help Me!! 50pts
It will mean a lot

Answers

Answer: Full Moon

Explanation:
The image below will help you!

Explanation:

full moon


a) How is the single covalent bond usually shown in each diagram?​

Answers

Single bonds are represented in drawn structures by one line segments which connects two pairs of Adams kind a like this. H
|
H — C — H
|
H
Other Questions
Check all solutions to the equation. If there are no solutions, check "None."x=3A. OB. -3C. 3D. -9E. 9F. None What is the ratio by atoms of elements present in hafnium phosphite?1:3:43:6:23:4:121:6:15 Death of a Salesman!!!! Please Help??? !!!!!!!! please help me my teacher sent me slot of work to do that was suppose to be sent Monday and due Friday but today is Friday!!!! In your own words explain what happened during the New Kingdom period to make Egyptians a world power. 27. A(n)of checks have been lost in the mail.a. amountb. number discuss impact of Newton's second law on roads Communication barrier is anything that ________________ or __________________________ with the exchange of information. If m2 BOE = 130 and m2 COB = 80, find the measure of the indicated arc in circle o. D E B mCBE = [ ? 1HELP ME NO ANSWER RANDOM STUFF FOR POINT WILL GET REPORTED (File attached) Find the value of x in the triangle. Show work During which conflict did the U.S. declare war against the U.S.?a) world war 2 b) world war 1 c) korean ward) vietnam war PLEASE HELP WILL MARK BRAINLIEST!! Submit your metaphor study that includes three paragraphs, each of which accurately develops a select metaphor. Choose three from the following list: She is a moral compass. Hes a bad egg. Youre a diamond in the rough. He is a knight in shining armor. Its a jungle out there. They are in a fishbowl. Question 3 of 25 What is g(x)? NEED HELP PLEASE ASAP! BRAINLIEST TO RIGHT ANSWER! Two similar rectangles have areas of 6 in.2 and 24 in.2. What is the scale factor of the smaller rectangle to the larger rectangle?A.2 : 1B.4 : 1C.6 : 1 HELPPPPPPPPP PLZZZZZZZZ:))))) Which of the following shows a group of possible angles a triangle could have?A. 10 degrees, 20 degrees, 190 degreesB. 30 degrees, 60 degrees, 60 degrees,C. 60 degrees, 90 degrees, 90 degreesD. 50 degrees, 60 degrees, 70 degrees Which observational tool helped astronomers Arno Penzias and Robert Wilson discover the existence of the cosmic microwave background (CMB)?A. optical telescopeB. radio telescopeC. a digital cameraD. space telescope What does RNA code for?A. carbohydratesB. DNAC. proteinsD. fats A: shape B: Line C: space D: Depth A five-paragraph essay question is one of the three types of response questions.Please select the best answer from the choices providedTF Jed is building a roof for his shed. The highest point of the roof will be 3 ft higher than the top of the shed. The slanted roof will be 7 ft long. What is the measure of the angle formed by the top of the shed and the slanted roof?