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BigorU [14]
3 years ago
11

A rock has a mass of 12.5 kg. It is dropped off a cliff that is 75.0 meters high. Find the Potential Energy of the rock at the t

op of the cliff. (b) What will the Kinetic ergy of the rock be just before it hits the ground. (c) What velocity will the rock have before it hits the ground? VENS w/Units Write Formula and Solve​
Physics
1 answer:
timurjin [86]3 years ago
5 0

Answer:

im sure u found the answer bc this was 2 weeks ago

Explanation:

and yea

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I will mark you brainlist please help
denis-greek [22]

Answer:15th

Explanation:

I believe it will fall on the 15th stair because 10 times 15 is 150 divided by 10 m/s equals 15

8 0
3 years ago
Britney is aware of the thoughts running through her mind and the emotions triggered by some of those thoughts. She is also awar
Sonbull [250]

Answer:

Consciousness

Explanation:

Obstructionism is the philosophy which dictates that a process needs to be delayed or stopped from occurring.

Transcendence means to achieve a state higher than the previous state.

Hyperkinesis is the condition where a person is unable to concentrate on something and is hyperactive.

Consciousness is the state from which an organism knows their existence and is aware of things that are present externally. Here, Britney is aware of her existence and the existence of other things around her.

Hence, she would be considered to be in a state of Consciousness

3 0
4 years ago
Regina has a very busy schedule and can only exercise every now and then. How do the benefits of occasional exercise compare wit
bixtya [17]

Answer:

C

Explanation:

6 0
3 years ago
With what speed does the can move immediately after the collision? Answer in units of m/s.
Ratling [72]

Answer:

1.74 m/s

Explanation:

From the question, we are given that the mass of the an object, m1= 2.7 kilogram(kg) and the mass of the can,m(can) is 0.72 Kilogram (kg). The velocity of the mass of an object(m1) , V1 is 1.1 metre per seconds(m/s) and the velocity of the mass of can[m(can)], V(can) is unknown- this is what we are to find.

Therefore, using the formula below, we can calculate the speed of the can, V(can);

===> Mass of object,m1 × velocity of object, V1 = mass of the can[m(can)] × velocity is of the can[V(can)].----------------------------------------------------(1).

Since the question says the collision was elastic, we use the formula below

Slotting in the given values into the equation (1) above, we have;

1/2×M1×V^2(initial velocity of the first object) + 1/2 ×M(can)×V^2(final velocy of the first object)= 1/2 × M1 × V^2 m( initial velocity of the first object).

Therefore, final velocity of the can= 2M1V1/M1+M2.

==> 2×2.7×1.1/ 2.7 + 0.72.

The velocity of the can after collision = 1.74 m/s

7 0
3 years ago
A car goes from rest to a speed of 90 km/h in 10 seconds . What is the car's acceleration in m/s²
zloy xaker [14]
First you must convert Km/hr to m/s. 90 km/hr equals 25m/s (this can be done through a conversion table by plugging in the conversion values). Then you need to see what was given:
vi (initial velocity)= 0m/s
vf (final velocity= 25m/s (90km/hr)
t (time)= 10s

Next you should find an equation that requires only the values you know and gives you the value you're looking for. Sometimes that requires two equations to be used, but in this case you only need one. The best equation for this would be a=(vf-vi)/t. Finally, plug in your values (a=(25-0)/10) to get your answer which would be 2.5m/s^2. Hope this helped!
7 0
3 years ago
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