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Misha Larkins [42]
3 years ago
15

true or false. because the speed of an object can change from one instant to the next, dividing the distance covered by the time

of travel gives constant speed​
Physics
2 answers:
Amiraneli [1.4K]3 years ago
4 0

Answer:

False.

Explanation:

Dividing the distance covered by the time would give us the average speed, not a constant speed. Constant speed exists only if the speed of an object does not change.

scoundrel [369]3 years ago
3 0

true. Because the speed of an object can change from one instant to the next, dividing the total distance covered by the time of travel gives. average speed.

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The electric force between two charged particles can be increased by decreasing the distance between the two particles.

<h3>How to increase electric force between two charged particles.</h3>

The technique of decreasing the separation distance between objects increases the force of attraction or repulsion between the objects. while

increasing the separation distance between objects decreases the force of attraction or repulsion between the objects.

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3 years ago
you give a shopping cart a job down the aisle the cart is full of groceries and has a mass of 18 kilograms the cart accelerates
mezya [45]

                 Force = (mass) x (acceleration)

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As long as you continue pushing the cart with 54 newtons of force,
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3 years ago
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A 120-kg roller coaster cart is being tested on a new track, and a crash-test dummy is loaded into itThe roller coaster starts f
Black_prince [1.1K]

Answer:

a) variation of the energy is equal to the work of the friction force

b) W = Em_{f} -Em₀ ,  c) he conservation of mechanical energy

Explanation:

a) In an analysis of this problem we can use the energy law, where at the moment the mechanical energy is started it is totally potential, and at the lowest point it is totally kinetic, we can suppose two possibilities, that the friction is zero and therefore by equalizing the energy we set the velocity at the lowest point.

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c) if there is no friction, the physical principle is the conservation of mechanical energy

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7 0
3 years ago
What is the definition of the word amplitude
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