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2 years ago

HELP ME PLS

Physics

1 answer:

crimeas [40]2 years ago

3 0

Answer

-The magnitude of acceleration during the fall is greater

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________ is the average kinetic energy of each atom. radiation temperature potential

SSSSS [86.1K]

It could be radiation because radiation means the emission of energy as electromagnetic wave, but potential fits it best

8 0

2 years ago

E 3.6 What force is needed to give a mass of 20 kg an acceleration of 5 m/s??

luda_lava [24]

Explanation:

Mass(m)= 20kg
Acceleration (a)= 5m/s²
Force(F)= ?

We know that,

F=ma
F=20×5
F=100N

Hence, the needed force is 100N.

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1 year ago

Read 2 more answers

4. Which of the following would NOT be a major process in the formation of sedimentary

sladkih [1.3K]

Answer:

b. melting

Explanation:

it is made of sediments and that is not necessary

5 0

2 years ago

A sled of mass 2.12 kg has an initial speed of 5.49 m/s across a horizontal surface. The coefficient of kinetic friction between

Darya [45]

Answer:

The speed of the sled is 3.56 m/s

Explanation:

Given that,

Mass = 2.12 kg

Initial speed = 5.49 m/s

Coefficient of kinetic friction = 0.229

Distance = 3.89 m

We need to calculate the acceleration of sled

Using formula of acceleration

$a = \dfrac{F}{m}$

Where, F = frictional force

m = mass

Put the value into the formula

$a=\dfrac{\mu mg}{m}$

$a=\mu g$

$a=0.229\times9.8$

$a=2.244\ m/s^2$

We need to calculate the speed of the sled

Using equation of motion

$v^2=u^2-2as$

Where, v = final velocity

u = initial velocity

a = acceleration

s = distance

Put the value in the equation

$v ^2=(5.49)^2-2\times2.244\times3.89$

$v=\sqrt{(5.49)^2-2\times2.244\times3.89}$

$v=3.56\ m/s$

Hence, The speed of the sled is 3.56 m/s.

8 0

3 years ago

PLEASE HELP MEE PLEASE I BEG

TEA [102]

Explanation: (I think)

Plug your values into the momentum equation.

So m1= 63kg

m2 = 10 kg

V1 = 12 m/s

And then plug in your values and solve for your unknown (v2)

8 0

2 years ago