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andreev551 [17]
2 years ago
10

3.2 Define conservation of energy.​

Physics
1 answer:
Free_Kalibri [48]2 years ago
5 0

Answer:

A principle stating that energy cannot be created or destroyed, but can be altered from one form to another.

Explanation:

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PLEASE HELP ONLY 5 QUESTIONS
Phantasy [73]
1. b or c
2. c
3. a? or d
4.
5. a
8 0
3 years ago
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If 2.0 x 10^-4 C charge passes a point in 5.0 x 10^-5 s, what is the rate of current flow?
insens350 [35]
Current is defined as the rate of charge flowing a point every second. Having a current of 1 Ampere signifies 1 Coulomb is flowing in a circuit every second. It is measured by the use of an ammeter which is positioned in series to the component to be measured. The current in the problem is calculated as follows:

I = 2.0 x 10^-4 C / 5.0 x 10^-5 s
<span>I = 4 A or 4.0 x 10^0 A</span>
3 0
3 years ago
1.- An elevator is being lowered at a constant speed by a steel cable attached to an electric motor. Which statement is correct?
Nady [450]

Answer:

the correct one is C

Explanation:

For this exercise we must use the work definition

    W = F. s

Where the bold characters indicate vectors and the point is the scalar producer

    W = F s cos θ

Where θ is the angles between force and displacement.

Let us support this in our case. The cable creates an upward tension and with the elevator going down the angle between them is 180º so the work of the cable on the elevator is negative.

The evade has a downward force, its weight so the force goes down and the displacement goes down, as both are in the same direction the work is positive

When examining the statements the correct one is C

4 0
3 years ago
A student analyzes data of the motion of a planet as it orbits a star that is in deep space. The orbit of the planet is consider
Valentin [98]

Explanation:

The orbit of the planet is considered to be stable and does not change over time. This means that the force of gravity and inertia are perfectly balanced. Leading to forward motion of Planet and moons under force of gravity of some other large body(Most probably stars).This is in turns leads to formation of orbit.

8 0
2 years ago
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C is correct just an FYI
belka [17]

Answer:

Huh?

Explanation:

3 0
2 years ago
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