A 0.50-kg sphere at the top of an incline has a potential energy of 8.0 joules relative to the base of the incline. Rolling halfway down the incline will cause the sphere's potential energy to be...

A 0.50-kg sphere at the top of an incline has a potential energy of 8.0 joules relative to the base of the incline. Rolling halfway down the incline will cause the sphere's potential energy to be...

a. Calculate the electric potential energy stored in a 1.7 × 10–11 F capacitor that stores 3.40 × 10–10 C of charge at 20.0 V. b. Calculate the capacitance of a system that stores 8...

i need an explanation on why energy is released or absorbed

A light bulb has output energy of light and heat. List five other appliances. For each appliance, the input energy is electrical. What is output energy?

Consider the elastic collision between two freight cars in figure 3.9. The momentum before and after the Collision is the same. The KE, however, is less after the Collision than before. How much less,...

Question: As the speed of a bicycle moving along a level horizontal surface changes from 2 m/s to 4 m/s, the magnitude of the bicycle's: Multiple Choice: a. total energy remains...

Dear teacher People say : energy is the ability to do work But then" what is work ?" I asked : they said " work is energy tranfered by force " Bla , they use energy...

A pump is used to pump a liquid of density D continuously through a pipe of cross section area A.If liquid is flowing with speed v,then power of pump is (a) (DAv^2)/3 (b) (DAv^2)/2 (c)...

There a mass of 4kg and a mass of 5kg connected by an inextensible string passing over a smooth pulley .the mass for 4kg starts from rest and moves up the smooth plane inclined at 30degree to horizontal...

Is sound energy renewable or non-renewable?

A model rollercoaster car weighs 3 kg. If it reaches 5 meters, how much energy is transformed into thermal energy at that point? I have other values too (it's a multiple part problem): Gravitational...

I know the answer might be 0J but I need help explaining how to get the answer

The blades of a wind mill sweep out a circle of area A.If wind flows with velocity v perpendicular to blades of wind mill and its density is D,then the mechanical power received by wind mill is (a)...

A car of mass m has an engine which can deliver power P.The minimum time in which car can be accelerated from rest to a speed v is (a) (mv^2)/2P (b) Pmv^2 (c) 2Pmv^2 (d) (mv^2)P/2...

A particle with total energy E in Potential energy region U(x).Motion of the particle is restricted to the region when options are (a) U(x)>E (b) U(x)<E (c) U(x)=0 (d)...

If a 0.06247 kg ice cube initially at 0.00 C is allowed to melt in a Styrofoam cup holding 0.497 kg of water at 10.0 C , what is the total entropy change for this process?

I.calculate the energy stored in the string II.if the energy in (I.) above is imparted to a body of mass 0.5kg to set it in motion calculate the speed acquired by the body

A 27.8 gram mass oscillates on the end of a spring and its motion can be described by: (1.5 )sin (21.4 t ) [here the units are standard, meters and seconds] What are the following for...

A 27.8 gram mass oscillates on the end of a spring and its motion can be described by: (1.5 )sin (21.4 t ) [here the units are standard, meters and seconds] What are the following for this system:...

2.50 moles of an ideal monatomic gas are compressed from 315,000 Pa to 175,000 Pa at 0.0300 m3. What is the change in internal energy in this isochoric process?

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