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...
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...
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
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...
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 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)...
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)...
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
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?
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?
Let us consider an ideal gas in a gravitational field which is uniform with strength g. The gas is trapped in a highly realistic h=10km vertical column of height h with perfectly insulating walls...
How do plant cells store energy? Also, how do plant cells use the energy?
Question: At a water park, Hugo climbs a 15.00m springboard, in 22.00s, to execute his famous THUNDER CANNON BALL. Hugo jumps up at 6.000m/s [up] off the end of the diving board and propels his mass,...
The combustion of 45.0g of methane (natural gas) releases 2498 kJ of heat energy. How much energy in kilocalories(kcal) would combustion of 0.420 ounces of methane release?
Question: At a water park, Hugo climbs a 15.00m springboard, in 22.00s, to execute his famous THUNDER CANNON BALL. Hugo jumps up at 6.000m/s [up] off the end of the diving board and propels his mass,...
A cup is on its side. inside the cup is a double A battery. An object hits the cup forcing the cup to roll. As the cup rolls the batter rolls out. What is the energy transfer of the battery rolling...
example: kWh/d/y, w/m2 etc..
What is the average power per m2 of floor space for a 100 m2 apartment with a leakiness (heat-loss coefficient) of 9 kWh per day per oC and an average inside/outside temperature difference of 15oC...