Answer:
this is an example of Newton's Second Law, acceleration happens when a force acts on a mass.
the force that makes the bicycle move is your foot pushing against the pedal
Choose all of the following that are compounds.
[]Air
[]Ink
[]Sodium (Na)
[]Mud
[]Hydrochloric acid (HCI)
[]Ocean water
[]carbon dioxide (CO2)
[]Hydrogen gas (H2)
[]water (H20)
Answer:
Ink
mud
hcl
ocean water
co2
h20
how many tries did it take to invent the lightbulb?
during which lunar phase does every solar eclipse occur?
Answer:
It has to be the "New Moon" because that is when the moon is between the sun and the earth.
A lunar eclipse can occur when the earth is between the sun and the moon.
what are the advantages of atmospheric pressure?
Answer:
it effects the amount of gas that dissolve in water
- A block of mass 4m can move without friction on a horizontal table. This block is attached to another block of
mass m by a string that passes over a frictionless pulley. If the masses of the string and the pulley are negligible,
what is the magnitude of the acceleration of the descending block?
The magnitude of the acceleration of the descending block is equal to 1.96 m/s².
What is the tension in the string?Tension can be described as a force acting along the length of a rope or a cable, especially a force that comprises by a flexible medium. Tension can be described as an action-reaction pair of forces acting at each end of the length of the medium. Each endpoint carried tension and force from the weight attached.
Given that the block with mass, M₁ = 4m is placed on the horizontal table.
The block with mass, M₂ = m is attached by a string.
The block (M₂) suspended by the string experiences tension (T) in the upward direction and weight in the downward direction.
M₂g - T = M₂a ..............(1)
The block (M₁) placed on the table experienced only one force which is tension (T)
T = M₁ a .....................(2)
From equation (1) and (2):
M₂g - M₁a = M₂a
M₁a + M₂a = M₂g
(M₁ + M₂) a = M₂g
a = M₂g/(M₁ + M₂)
Substitute the value of masses of the blocks:
a = m g /( 4m + m)
a = g/5
a = 1.96 m/s²
Learn more about tension, here:
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17. [06.05]
What particles are involved in nuclear reactions, but not in chemical reactions? (1 point)
Neutrons and protons
Neutrons and electrons
Protons and electrons
Electrons only
Answer:
What particles are involved in nuclear reactions, but not in chemical reactions? (1 point)
Ans Option A Neutrons and protons
A 68 g plastic ball is moving to the left at 17 m/s . How much work must be done on the ball to cause it to move to the right at 17 m/s ?
Answer:
KE = 19.652 J to the right
Explanation:
KE = J or N*m
KE = (1/2)m*v²
KE = kinetic energy
m = mass(kg)
v = velocity (m/s)
KE = .5*0.068kg*(17m/s)²
KE = 9.826 J to the left
So double it to the right to get 17m/s.
KE = 19.652 J to the right
J = Joules or can be expressed as N*m which is Newton-meters.
When is it safer to drive a heavier car over a lighter car?
a. When you crash into a wall
b. When you crash into a tree
c. When you crash into another car
d. It is never safe in a hevaier car
Answer:
I think it would be c, crashing into another car
URGENT NEED GIVING POINTS question is how do i find R and the angle THANK YOU
Answer:
Theta = 26.93°
R = 0.38m
Explanation:
Theta = cos^-1(0.74m/0.83m)
Theta = 26.93°
R = sqrt(0.83²-0.74²)
R = 0.38m
An object weights 1000N on the earth’s surface. [ g=10N/Kg]
Calculate its mass
Answer: An object weights 1000N on the earth's surface. ... Calculate its mass ... strength is 10 N/kg how many newtons does a 30kg object weigh.
Explanation:
Which is true of the intensity of sound?
Answer:
c.
Explanation:
the following statements show contact force, except _____
a. closing your room's door
b. pushing your desk
c. shooting a ball on the floor using a rope
d. pulling a 10kg box on the floor using a rope
Answer:
d. pulling a 10kg box on the floor using a rope
is climbing stairs work done
Answer:
The work you did in climbing the stairs is the force you applied (your weight) times the distance you moved upward (the height of the stairs.) So yes, climbing stairs is work done.
Explanation:
Hope this helped, nya~ :3
Lab report: Newton's Second Law
Answer:
Newton found the acceleration of a body to increase with force and decreases with mass
fore example : a equal force applied on two different things that one of thing is have 100kg and another have70kg but the acceleration is different because the bigger one accelerate slower than the smaller because
[tex]f = ma[/tex]
Calculate the relative molecular of calcium carbonate
* as following method*
Answer:
100.22
Explanation:
Have a great day!
the electromagnetic waves with the highest frequencies are called
Name 2 different "limiting Factors" that limit the size of a population in a given ecosystem.
Answer: food, water, habitat, and mate.
Explanation: The common limiting factors in an ecosystem are food, water, habitat, and mate. The availability of these factors will affect the carrying capacity of an environment. As population increases, food demand increases as well
60W light bulb is left on for 5mins. How much energy does it use in KWH
Answer:
Energy = Power × Time
time must be hoursPower must be in kilowatts[tex]{ \tt{E = ( \frac{60}{1000} ) \times ( \frac{5}{60}) }} \\ \\ { \tt{E = 0.005 \: kwh {}^{ } }}[/tex]
Does a moving charge experiences a force in magnetic field? Explain
how many gallons of gasoline are consumed in the us daily?
Un automóvil aumenta su rapidez cuando está en una pista circular. ¿Tieneaceleración centrípeta? ¿Tiene aceleración angular? Explique.
Explanation:
espero que re ayude esta información para tu pregunta
How much work is done when a force of 33 N pulls a wagon 13 meters?
*Round your answer to the nearest whole number.
Answer:
Work = (force) x (distance)
Work = (33N) x (13m) = 429 N-m = 429 joules
IF the force is in exactly the same direction as the motion of the wagon.
Explanation:
pa mark ng brainliest
2. What is the period of 350 waves passing a point in 5 seconds?
Answer:
IF SHE BREATHS SHES A T.H.OT
Explanation:
Pls dont hate me its meme k ,_.
Which of the following, if eliminated, would completely prevent the greenhouse effect from occurring on earth?
A. Atmosphere Clouds
B. Fossil fuels
C. Acid rain
D. The ozone layer
E. Chlorofluorocarbons
Chlorofluorocarbons is eliminated, would completely prevent the greenhouse effect from occurring on earth.
What is greenhouse effect?The greenhouse effect is a phenomenon in which heat from a planet's host star passes through its atmosphere and warms the surface of the planet, but greenhouse gases in the atmosphere prevent part of the heat from going directly to space, making the world warmer.
Chlorofluorocarbons gas is main cause of greenhouse effect so when we remove it from atmosphere than green house effect will be reduced.
Chlorofluorocarbons is eliminated, would completely prevent the greenhouse effect from occurring on earth.
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Which of the following are for vector directione?
A Outside 45 degrees
G 35 degrees north of east
D 35 degrees inside
which of these MANNER of death? (select all that apply)
1-blood loss
2-cessation of brain function
3-accidential death
4-stabbing
5-pulmonary arrest
6-homicidal death
7-natural death
8-shooting
Answer:
3, 4, 6, 7, 8 are manners of death.
ASAP
A train is travelling at 100 m/s when it receives an alert: “Brake! 600 meters ahead, the rails are broken”. The highest acceleration that the train can produce is 10 m/s^2. If the train slows down with a constant acceleration of 10 m/s^2
How long will it take for the train to stop?
How many meters will it travel before it stops?
Botcookiemaster please don't use a file just give me the answer
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Let's consider the given terms ~
Initial velocity (u) = 100 m/sAcceleration (a) = - 10 m/s²(Acceleration is negative bbecause train slows down)
Final velocity (v) = 0 m/s(final velocity is 0, because train stops)
Now, let's find the time taken (t) by using the first equation of motion ~
[tex]v = u + at[/tex][tex]0 = 100 + ( - 10 \times t)[/tex][tex]0 = 100 - 10t[/tex][tex]10t = 100[/tex][tex]t = 100 \div 10[/tex][tex]t = 10[/tex]The train will take 10 secs to stop,
Now, let's find how much distance (s) it will cover before it stops using second equation of motion ~
[tex]s = ut + \dfrac{1}{2} at {}^{2} [/tex][tex]s = (100 \times 10) + ( \dfrac{1}{ 2} \times - 10 \times 10 \times 10)[/tex][tex]s = 1000 + ( - 500)[/tex][tex]s = 1000 - 500[/tex][tex]500 \: \: m[/tex]It will cover 500 meters before coming to rest ~
CASE CLEANING:The plastic case that houses the PC components can be cleaned with lint-free cloth that has been slightly dampened with water. For stubborn stains, add a little household detergent to the cloth. Use vacuum around each of the holes, vents, and crevices on the computer.On the other hand, cleaning the keyboard needs to disconnect first the computer and peripheral from their power sources. Use a vacuum to remove any dust from the slots and holes on the keyboard.To blow the dust and debris stored in a local office supply use compressed air. Do you agree with the process presented above? MAKE A CLAIM AND WRITE A STATEMENT OR CONCLUSION THAT RESPONDS TO THE ORIGINAL QUESTION OR PROBLEM.
Answer:
She took it as priority and got to work
A bus is moving at a speed of 45 km/h. What is the speed of
the bus in m/s?
a) 1.25×101 m/s
b) 1.5×103 m/s
c) 2.5 m/s
d) 1.5×102 m/s
.
We want to convert the speed of the bus from kilometers per hour to meters per second.
To do this, multiply the speed in km/hr by 1,000 and divide by 3,600.
The formula to do this is: 1 km/hr = 1,000/3,600 m/s
Therefore, we have that 45 km/hr is:
45 x 1000/ 3,600 ➡️ 12.5 m/s = 1.25 x 10 to the 1st power m/s
The answer is option A.
Which type of wave requires a medium?
A. Light wave
B. Electromagnetic wave
C. Sound wave
D. Ultraviolet wave
The correct answer is option C. Sound wave
A sound wave is an example of a mechanical wave which requires a medium.
Answer:
The closest is “A”, however an ocean wave is not truly a transverse wave. It belongs to the category “gravity wave” (note: NOT gravitational wave as in cosmology) and occur at the interface between two media. In the case of a wave on the ocean surface it is specifically called a “surface gravity wave” . The particles in a surface gravity wave move in an oscillatory circular motion called the wave orbit not in a back and forth motion.