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Tju [1.3M]
3 years ago
9

One ball is dropped vertically from a window. At the same instant, a second ball is thrown horizontally from the same window.

Physics
1 answer:
geniusboy [140]3 years ago
7 0

Answer:

The second ball

Explanation:

Both balls are under the effect of gravity, accelerating with exactly the same value. The first ball is dropped, therefore its initial velocity is zero. Since the second ball has horizontal and vertical velocity components, its initial velocity is given by:

v=\sqrt{v_x^2+v_y^2}

The vertical component is zero, however, it has a horizontal velocity, so its initial speed is not zero, therefore the secong ball has the greater speed at ground level.

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Explanation:

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Then, te correct option would be option A; resting, because an object resting has instantaneuos acceleration of zero.

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Describe a real-world example of the law of conservation of momentum.
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2 years ago
A projectile is launched at an angle of 60° above the horizontal. compared to the vertical component of the initial velocity of
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Why is carbon said to provide a “backbone” in many molecules?(1 point)
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3 0
3 years ago
The motor in a refrigerator has a power output of 294 W. If the freezing compartment is at 271 K and the outside air is at 310 K
dusya [7]

Answer:

Maximum amount of heat = 10002151.38J

Explanation:

Workdone by motor in 86.1 minutes I given by:

W = power × time

W= 294 × 86.1×60

W= 1439424 Joules

W= 1.4 ×10^6Joules

The amount of heat extracted is given by:

/QL /= K/W/ = TL/W/ /(TH - TL)

Where TL= freezing compartment temperature

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/QL /= 271 × 1439424 / (310 - 271)

/QL/ = 390083904/39

/QL/ = 10002151.38 Joules

5 0
3 years ago
Read 2 more answers
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