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3 years ago

Will upvote!!!!

Physics

2 answers:

Aloiza [94]3 years ago

7 0

Potential Energy is correct. I took the test

juin [17]3 years ago

4 0

D. potential energy, because there is a bunch of water pent up, essentially stationary, waiting to roll down the steep mountain from the peak, so to say. if the dam were to be removed it would become kinetic.

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Sound is..... A. matter B. Vibration C. potential energy D. electromagnetic energy

Shkiper50 [21]

The answer is C. Potential energy

(I learned this in class recently)

3 0

3 years ago

I need help plz ITS A QUIZZZZZZZZZZZZZZZZZZZ

zmey [24]

Answer:

Explanation:

6 0

3 years ago

An ideal gas is enclosed in a cylinder that has a movable piston on top. The piston has a mass m and an area A and is free to sl

elena-14-01-66 [18.8K]

Answer:

Explanation:

Given mass of piston $\left ( m\right )$

no. of moles =n

Given Pressure remains same

Temperature changes from $T_1 to T_2$

Work done $\left ( W\right ) is given by=\int_{V_1}^{V_2}PdV$

W= $P\left ( V_2-V_1\right )$

also $PV_1=nRT_1$

$PV_2=nRT_2$

$W=nR\left ( T_2-T_1\right )$

4 0

3 years ago

Suppose that during any period of ¼ second there is one instant at which the crests or troughs of component waves are exactly in

kolezko [41]

<h3>Answer;</h3>

A. 4

<h3>Explanation;</h3>

The period of a wave or periodic time is the time taken for a complete oscillation to occur. For example its is the time taken between two successive crests or troughs.
The beats or oscillation that occur in one second represents the frequency. Frequency is the number of complete oscillations or beats in one second in a wave.
Frequency, measured in Hertz is given by the reciprocal of the periodic time.
Thus; Frequency or beats per second = 1/(1/4) = 4
Hence , 4 beats per second

6 0

4 years ago

Let’s calculate Ms Jackson’s acceleration as she comes to a stop. Remember that the formula for acceleration is the change in ve

Natali [406]

Answer:

$-1.5 m/s^2$

Explanation:

The acceleration of an object is equal to the change in velocity of the object divided by the time taken for the object to change the velocity:

$a=\frac{v-u}{t}$

where:

u is the initial velocity

v is the final velocity

t is the time taken for the velocity to change from u to v

For Ms Jackson in this problem, we have:

u = 6 m/s (initial velocity)

v = 0 m/s (final velocity)

t = 4 s (time elapsed)

Substituting into the equation, we find the acceleration:

$a=\frac{0-6}{4}=-1.5 m/s^2$

And the negative sign indicates that the direction of the acceleration is opposite to the direction of motion.

4 0

3 years ago