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nadezda [96]
3 years ago
9

Momentum is a measure of ____.

Physics
2 answers:
GarryVolchara [31]3 years ago
6 0

Answer: Option (a) is the correct answer.

Explanation:

Momentum is the ability of an object to continue its motion. It can be measured by multiplying mass of the object and its velocity.

Mathematically,               p = m × v

where                     p = momentum

                               m = mass

                                v = velocity

Therefore, we can conclude that out of the given options, momentum is a measure of how hard it is to stop an object.

RUDIKE [14]3 years ago
3 0
Momentum is a measure of A.how hard it is to stop an object.

<span>♡♡Hope I helped!!! :)♡♡
</span>
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How much current is in a circuit that includes a 9.0 volt battery and a bulb woth a resistance of 4.0 ohms
Vitek1552 [10]

According to Ohm's law for a portion of the circuit we have:

U=RI=>I=U/R=9/4=2.25 A

7 0
3 years ago
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A hot-air balloonist, rising vertically with a constant speed of 5.00 m/s releases a sandbag at the instant the balloon is 40.0
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Answer:

Y = 40.94m

Explanation:

The initial speed of the sandbag is the same as the balloon and so is its position, so:

Y = Yo + Vo*t-\frac{g*t^2}{2}

Replacing these values:

Yo = 40m     Vo = 5m/s     g = 9.81m/s^2     t = 0.25s

We get the position of the sandbag:

Y = 40+5*(0.25)-\frac{9.81*(0.25)^2}{2}

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3 years ago
Calculate the water pressure in the pipes at the bottom of a high-rise building that is fed by reservoir 60 m above the roof top
yan [13]
P + gh 
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3 years ago
Comparing X-ray to radio wave, which has a shorter wavelength?
Daniel [21]

Answer:

x-ray

Explanation:

X-rays can penetrate through matter because of their high frequencies while radio waves are not able to do so as much. If you think about it, taking an x-ray requires a lot more energy than for radio waves to allow you to listen to songs on the radio. Hope this helps :)

6 0
3 years ago
A pumpkin with a mass of 3.3 kg is launched from a catapult at an initial height of 3.8 m off the ground, with an initial speed
dimaraw [331]

Answer:

11.2m

Explanation:

Suppose the pumpkin is launched vertically and the speed of 13.9 m/s is absolutely vertical. As the pumpkin rises up, its kinetic energy is converted to potential energy, let the reference point be the round, we can create the following equation from the law of energy conservation:

E_1 + P_1 = E_2 + P_2

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we can substitute g = 9.8m/s^2, v_1 = 13.9m/s, v_2 = 0.5v_1 = 0.5*13.9 = 6.95 m/s, h_1 = 3.8

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13.9^2 + 2*9.8*3.8 = 6.95^2 + 2*9.8*h_2

19.6h_2 = 219.3875

h_2 = 11.2m

5 0
4 years ago
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