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stellarik [79]
3 years ago
13

Your family is moving to a new house. While lifting the box 1.5 m straight up you exerted a force of 200 N for 1 second. How muc

h work is required?
Physics
1 answer:
AlladinOne [14]3 years ago
6 0

If you lifted 200 Newtons 1.5 meters straight up, you did 300 joules of work no matter how fast or slow you did it.

If you did it in 1 second, then you did it at the rate of 300 watts.

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In the real world, How does conduction, convection and radiation work? (Examples needed) (WILL MARK BRAINLIST)
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Conduction: someone burning their hand by placing their hand on a hot stove.

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3 years ago
Which object has more gravitational potential energy
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Answer:

need more context

Explanation:

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3 years ago
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a bowling ball of mass 7.3 kg and radius 9.6 cm rolls without slipping down a lane at 3.1 m/s . part a calculate its total kinet
erma4kov [3.2K]

49 J   is the total kinetic energy. If a bowling ball of mass 7.3 kg and radius 9.6 cm rolls without slipping down a lane at 3.1 m/s. Kinetic energy is the energy an bowling ball has because of its motion.

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Now total kinetic energy in this case is given by KE = Kinetic energy due to rotation  + Kinetic energy due to translation

i,e     KE = 1/2*m*v2   +   1/2*I*ω2      where   I is the moment of inertia of the bowling ball about it's center and ω is the angular velocity

Now for pure rotation (without slipping)    v = rω  

also for the ball (solid sphere)  I = 2/5*m*r2

Hence our kinetic energy becomes  

 KE = 1/2*m*v2 +  1/5*m*v2 = 7/10*m*v2

so   KE = 0.7*7.3*(3.1)2 = 49.10 J = 49 J

Learn more about kinetic energy here

brainly.com/question/12669551

#SPJ4

5 0
1 year ago
Isaac Newton discovered that __________ is a mixture of lights of many different wavelengths.
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I believe the answer you are looking for is color :)
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3 years ago
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anastassius [24]

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