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denpristay [2]
3 years ago
7

A tennis ball is released from a height of 2.0 m above the floor, and then bounces three times. With each bounce, dissipative fo

rces cause it to lose 16.0% of its mechanical energy. How high does it reach after the third bounce?
140 cm

120 cm

120 mm

12 cm
Physics
2 answers:
babunello [35]3 years ago
6 0
I would definitely say D: 12cm
Anything higher than i’d say 70 cm is false and it’s way to much. Thank you!!!
Leni [432]3 years ago
3 0

Answer:

12 cm

Explanation:

From what I got with my answer (8.192 cm) I went ahead and rounded it to the closest answer which is 12 cm. Hopefully im correct but if not, I apologize in advance.

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No they do not they just need to be in each other's magnetic field
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3 years ago
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A 0.0663 kg ingot of metal is heated to 241◦C
Westkost [7]

Answer:280.216j/kg°C

Explanation:

Mass of metal=0.0663kg

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Temperature of metal=241°C

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specific heat capacity of water=4186j/kg°C

0.0663xax(241-27.4)=0.395x4186x(27.4-25)

0.0663xax213.6=0.395x4186x2.4

14.16168a=3968.328

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4 0
3 years ago
Boyle's law balloon was filled to a volume of 2.50 l when the temperature was 30.0∘
aliina [53]

To solve this we assume that the gas inside the balloon is an ideal gas. Then, we can use the ideal gas equation which is expressed as PV = nRT. At a constant pressure and number of moles of the gas the ratio T/V is equal to some constant. At another set of condition of temperature, the constant is still the same. Calculations are as follows:

T1 / V1 = T2 / V2

V2 = T2 x V1 / T1

V2 =284.15 x 2.50 / 303.15

<span>V2 = 2.34 L</span>

7 0
2 years ago
A box is pulled up a rough ramp that makes an angle of 22 degrees with the horizontal surface. The surface of the ramp is the x-
kifflom [539]

Magnitude of the force  of tension: 139 N

Explanation:

The surface of the ramp here is assumed to be the positive x-direction.

To solve this problem and find the magnitude of the force of tension, we have to analyze only the situation along the x-direction, since the force of tension lie in this direction.

There are three forces acting along the x-direction:

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We know that the magnitude of the weight is

F_g=70.0 N

So its x-component is

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The net force along the x-direction can be written as

F_x = F_T-F_f-F_{gx}

And therefore, since the net force is 98 N, we can find the magnitude of the force of tension:

F_T=F_x+F_f+F_{gx}=98+14.8+26.2=139 N

Learn more about inclined planes:

brainly.com/question/5884009

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8 0
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Calculate the kinetic energy of a 750 kg compact car moving 50 m/s.
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6 0
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