Answer:
Speeding up While Falling Down
Gravity is a force that pulls objects down toward the ground. When objects fall to the ground, gravity causes them to accelerate. Acceleration is a change in velocity, and velocity, in turn, is a measure of the speed and direction of motion.
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Explanation:
The period of a wave is the time it takes the wave to complete one cycle (at a fixed location).
So if a wave completes one cycle in <em>2 seconds</em>, then that is its period.
True
Explanation:
Nuclear reactions have many useful applications but they also have harmful biological effects. Nuclear reactions are that occurs in the nucleus of an atoms. They differ from chemical reactions which occurs using valence electrons.
Some uses of nuclear reactions:
- They are used for cancer therapy
- Radioactive tracers.
- Production of energy
- Radiometric dating
Some harmful effects:
- Uncontrolled nuclear reactions can lead to nuclear wastes in the environment.
- They are used in manufacturing nuclear weapons.
- They cause destruction of living cells because they produce ionizing radiations.
Learn more;
Nuclear reactions brainly.com/question/2948717
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Answer:
A satellite orbiting earth 1
Your shoulder 3
f=m x a 2
A soccer ball 2
A magician 3
When you paddle 3
A picture 1
Earth 1
A rocket 1
A speed skater 2
Explanation:
Law 1 states an object at rest , stay at rest and an object in motion stays in motion unless acted on by another force.
Law 2 states that the acceleration of an object depends on its mass and force applied.
Law 3 states every action creates an equal and opposite reaction.
