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goldenfox [79]
3 years ago
15

When a runner increases her speed from 75 m/s to 115 m/s in 25 s,her acceleration is _____

Physics
1 answer:
Angelina_Jolie [31]3 years ago
8 0
The acceleration would actually be 1.6 m/s^2. Acceleration= final velocity-initial velocity/time taken. When you do that formula it comes out to equal that.
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What causes clouds of dust and gas to form a protostar
just olya [345]
<h2>Answer: Gravitational attraction </h2>

Gravity force causes the clouds of dust and gas to form a protostar. As this <u>attraction force</u> is responsible for gathering and compressing the existing elements in the cloud of gas and dust, heating them during this process.

Then, when the amount of material accumulated by gravitational contraction is large enough, and the temperature and pressure reached high enough, the <u>nuclear fusion</u> process will begin.

To understand it better: The hydrogen nuclei will begin to fuse, generating helium nuclei in the process and releasing huge amounts of energy.

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4 0
3 years ago
A force of 3kN acts on a car to make it accelerate by 1.5m/s/s. What is the mass of the car?
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2

Explanation:

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REDDIT You look at a circular loop of wire such that the plane of the loop is perpendicular to your line of vision. The loop has
sergiy2304 [10]

Answer:

The circular loop experiences a constant force which is always directed towards the center of the loop and tends to compress it.

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At each point on the circular loop, the force is always directed towards the center of the loop and thus tends to compress it.

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How can you drop two eggs the fewest amount of times, without them breaking?
lord [1]

Answer:

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