A washing machine is being dragged with a starting force of 380.8 N to the West, but this is reduced by friction. If the mass of the washing machine is 37 kg
and the coefficient of friction is 0.54, what was the Net acceleration experienced by the washing machine?
A 10.27 m/s^2 South
B 5 m/s^2 South
C 19.01 m/s^2 South
D 7.6 m/s^2 South

Answer:

Answer:

3 g/cm          

Explanation:

Mass of stone = 30 g

Initial volume of cylinder = 50 cm

Increased volume = 60 cm

Volume = 60-50

= 10 cm

Density of stone = Mass/Volume

= 30/10

= 3 g/ml            as 1 ml = 1 cm

= 3 g/ml          

Explanation:

Answer:

300m/s/s

Explanation:

a=f/m

f=150N

m=.5kg

150/.5=300

Answer: Your using your skeletal muscle

Explanation:

(a) The change in momentum of the trunk is 19800 kgm/s,

(b) The force exerted on the trunk is 3960 N

The can be defined as the product of the mass of a body and its change in velocity. The S.I unit of change in momentum is kgm/s

(a) To calculate the change in momentum of the trunk, we use the formula below.

Formula:

Whee:

From the question,

Given:

Substitute these values into equation 1

(b) To calculate how large is the force was exerted on the trunk, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute into equation 2

Hence, (a) The change in momentum of the trunk is 19800 kgm/s, (b) The force exerted on the trunk is 3960 N

Learn more about change in momentum here: https://brainly.com/question/7538238

Answer:

The difference between reversible and irreversible is reversible can be changed but irreversible can not.

Answer:

He should swim at least three times a week at the community pool to build stamina.

Explanation:

Answer:

a) Magnet attracts to ferromagnetic substances like Iron.

b) Scientific thinking (critical thinking)

Answer:

B) a louder sound of the same pitch.

Explanation:

Given that the loudspeaker produces a sound wave of frequency 50hz and the amplitude of the sound wave is increased.

As loudness of the sound depends on the amplitude of the sound while pitch depends on the frequency of the sound.

On increasing the amplitude of the sound there is no effect on the frequency of the sound, so, the loudness of the sound will increase while the pitch remains unchanged.

Therefore, on increasing the amplitude of the soundwave a louder sound of the same pitch is heard.

Hence, option (B) is correct.

Answer:

FALSE

Explanation:

Rotation is spinning on its axis

Revolution is spinning around the sun

Answer:

i think its B.NOT all potential energy is converted to kinetic energy

Answer:

Maybe,  B. Not all potential energy is converted to kinetic energy.

Explanation:

Even if air resistance slows down the ball, the potential energy is the same. But if air resistance is in the way, not all of the potential energy can be converted to kinetic energy. Some of the energy has to be used to push the air molecules out of the way.

Answer:

According to the Newton's law of gravitational every object in the universe attracts every other objects with a force which is called gravitational force.This gravitational force is (i) directly proportional to the product of their masses and (ii) inversely proportional to the square of the distance between their centres.

Explanation:

Newton's law of gravitational is called the universal law because it is applicable to all the bodies either terrestrial or celestial having any shape,size,mass or at any distance apart with any medium between them,at any time(past,present or future).

Answer:

True

Explanation:

It is true i am right

Answer:

When thermal energy is added to a substance, its temperature increases, which can change its state from solid to liquid (melting), liquid to gas (vaporization), or solid to gas (sublimation). ... When the pressure exerted on a substance increases, it can cause the substance to condense.

Explanation:

Hope it will help use

Answer:

Vf = 9.46 m/s

Explanation:

In order to find the final velocity of the dog we can use third equation of motion:

2gh = Vf² - Vi²

where,

g = acceleration due to gravity = 9.8 m/s²

h = height of window = (15 ft)(1 m/3.28 ft) = 4.57 m

Vf = Final Velocity of Dog = ?

Vi = Initial Velocity of Dog = 0 m/s

Therefore,

(2)(9.8 m/s²)(4.57 m) = Vf² - (0 m/s)²

Vf = √(89.572 m²/s²)

Vf = 9.46 m/s

Answer:

go up the street as you exit the house and make a right and keep going up for 3 blocks and you should see the school

Answer:

c. the speed of a planet is greatest when it is closest to the Sun.

Explanation:

Johannes Kepler was an astronomer who discovered that planets had elliptical orbits in the early 1600s (between 1609 and 1619).

The three (3) laws published by Kepler include;

I. The first law of planetary motion by Kepler states that, all the planets move in elliptical orbits around the Sun at a focus.

II. According to Kepler's second law of planetary motion, the speed of a planet is greatest when it is closest to the Sun.

Thus, the nearer (closer) a planet is to the Sun, the stronger would be the gravitational pull of the sun on the planet and consequently, the faster is the speed of the planet in terms motion.

III. The square of any planetary body's orbital period (P) is directly proportional to the cube of its orbit's semi-major axis.

Answer:

A planet moves faster when it is closer to the Sun.

Explanation:

Kepler law!

Answer:

Newtons.

Explanation:

Force is given by the multiplication of mass and acceleration.

Mathematically, Force is;

[tex] F = ma[/tex]

Where;

F represents force measured in Newton.

m represents the mass of an object measured in kilograms.

a represents acceleration measured in meter per seconds square.

Newtons is a measurement we use to determine the amount of force used to move an object by a simple machine. It is the International System of Units (SI) used to measure force and has a symbol of N.

Basically, it was named after Sir Isaac Newton based on his fundamental works in the field of mechanics (motions).

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Brilliant Answers

Answer:

5.5 m/s

Explanation:

Right on Edge

The statement explains the importance of enzymes that check for and repair mistakes during DNA replication is the enzymes prevent many genetic mutations from being expressed. Thus, the option C is correct.

RNA polymerase is an enzyme that aids in the transcription of DNA into RNA during transcript in the nucleus. The enzymes prevent many genetic mutations from being expressed.

Primase is an enzyme that synthesizes short RNA sequences called primers. These primers serve as a starting point for DNA synthesis during replication as the DNA polymerases cannot begin the synthesis of the new strand, they only extend it after primase begins it and primase produces RNA molecules, the enzyme can be said to be a type of RNA polymerase.

Therefore, The statement explains the importance of enzymes that check for and repair mistakes during DNA replication is the enzymes prevent many genetic mutations from being expressed. Thus, the option C is correct.

Learn more about genetic mutations on:

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Answer:

The earth rotates west to east

Explanation:

Considering that the sun doesn't really move and the earth is rotating around the sun, and it is moving from east to west with us (the earth) facing it in which means the earth rotates around the sun west to east!

Answer:

The boat won't be able to move if the oars were out and there was no thruster. If there was a flow of the water then yes there would be a moving boat.

Answer:

Hair dryer

Explanation:

The electrical energy from the outlet is converted to heat to dry hair. In a fair chemical energy is converted to heat instead.

Answer:

I think it's 5.

Explanation:

Answer: 4 vectors

Explanation:

Answer:

Asha traveled a distance of 50 m

The displacement is 20 m north.

Explanation:

Distance and Displacement

A moving object constantly travels for some distances at defined periods of time. The total moved distance is the sum of each individual distance the object traveled. It can be written as:

dtotal=d1+d2+d3+...+dn

This sum is obtained independently of the direction the object moves.

The displacement only takes into consideration the initial and final positions of the object while moving. The displacement, unlike distance, is a vectorial magnitude and can even have magnitude zero if the object starts and ends the movement at the same point.

Asha walks 15 m west, 20 m north, and 15 m east. The total distance is

dt=15 m + 20 m + 15 m = 50 m

Asha traveled a distance of 50 m

Note the final position is 20 m above the initial position since she goes 15 m west and 15 m east. Thus the displacement is 20 m north.

The  mass of the scale pan : 0.11 kg

Given

A spiral spring's length = 20 cm

mass 50 g ⇒ the length = 22 cm

mass 70 g ⇒ the length = 22.25 cm

Required

the  mass of the scale pan

Solution

Hooke's Law :

[tex]\tt F=k.\Delta x[/tex]

The spring constant (k) :

[tex]\tt k=\dfrac{\Delta F}{\Delta x}=\dfrac{g.(70-50)}{22.25-22}=\dfrac{g.20}{0.25}=g.80~g/cm=10~m/s^2\times 8~kg/m=80~N/m[/tex]

mass of the scale pan=m(for 50 g mass) :

[tex]\tt (m+0.05).g=80\times (0.22-0.20)\\\\m=0.11~kg[/tex]

Answer: Executive Order on Protecting American Monuments, Memorials, and Statues against our country are public monuments, memorials, and statues.

Explanation: learned it last week

Answer:

The robot should hold the bucket at 137.6 m from the start of the field

Explanation:

Horizontal Motion

When an object is launched horizontally with a speed v from a height h, it describes a curved path exclusively ruled by gravity until it eventually hits the ground.

The range or maximum horizontal distance d traveled by the object can be calculated as follows:

[tex]\displaystyle d=v\cdot\sqrt{\frac {2h}{g}}[/tex]

Birdman flies horizontally at a  speed of v=40 m/s and a height of h=58  m. He releases a turd above the start of the field. If the robot was exactly down  Birdman, then it won't catch the turd with the bucket because it would land farther away by a distance equal to the range. Thus:

[tex]\displaystyle d=40\cdot\sqrt{\frac {2*58}{9.8}}[/tex]

[tex]\displaystyle d=40\cdot\sqrt{11.84}[/tex]

d = 137.6 m

The robot should hold the bucket at 137.6 m from the start of the field

Answer:

77N

Explanation:

Since we are not told what to find, we can as well look for the net force acting on the ball.

According Newton's second law;

F = mass × acceleration

Given

Mass = 3.5kg

Acceleration = 22m/s²

Net force F = 3.5×22

F = 35/10×22

F = 7/2×22

F = 7×11

F =77N

Hence the magnitude of force required is 77N

Answer:oxygen is converted to chemical energy

Explanation:

I got it right