3 years ago

How to find average speed in physics

1 answer:

7 0

Answer: you divide total distance by time. To get the time, divide total distance by speed. To get distance, multiply speed times the amount of time.

Explanation:

I hope this helps

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The uranium nucleus consists of ? protons and ? neutrons.

vladimir1956 [14]

Answer:

An atomic nucleus consists of protons and neutrons, collectively called nucleons. Although protons repel each other, the nucleus is held tightly together by a short-range, but very strong, force called the strong nuclear force. A nucleus has less mass than the total mass of its constituent nucleons.

Explanation:

5 0

4 years ago

A 10 kg mass rests on a table. What acceleration will be generated when a force of 20 N is applied and encounters a frictional f

11Alexandr11 [23.1K]

The frictional force is oposing the force that we apply to this mass. Therefore the overall force is $F_{total}=F_{applied}-F_{friction}=20-15 =5 (Newton)$
The second principle of physics tells us that the acceleration of a mass is direct proportional to the applied force, the mass of that object being the proportionality constant.
$F=m*a$
Hence $a= \frac{F}{m}=5/10 =0.5 (m/s^2)$