Physics, 17.10.2019 15:30, abelxoconda

What energy transformations when climbing a hill?

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Physics, 21.06.2019 23:10, theh301234

6–55 refrigerant-134a enters the condenser of a residential heat pump at 800 kpa and 358c at a rate of 0.018 kg/s and leaves at 800 kpa as a saturated liquid. if the compressor consumes 1.2 kw of power, determine (a) the cop of the heat pump and (b) the rate of heat absorption from the outside air.

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Physics, 22.06.2019 05:00, hannahhoskings6989

Aperson walking 1 mile everyday for exercise, leaving her front porch at 9: 00 am and returning to her front porch at 9: 25 am. what is the total displacement of her daily walk? a) 1 mileb) 0c) 25 minutes d) none of the above

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Physics, 22.06.2019 12:30, mikurrjurdan

Matter is needed to transfer thermal energy bya. conductionb. convectionc. radiation d. both a & b.

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Physics, 22.06.2019 14:40, kellypechacekoyc1b3

Asolid cylinder and a cylindrical shell have the same mass, same radius, and turn on frictionless, horizontal axles. the cylindrical shell has light-weight spokes connecting the shell to the axle. a rope is wrapped around each cylinder and tied to blocks of equal masses that are held the same height above the ground. both blocks are released simultaneously. the ropes do not slip. which block hits the ground first? or is it a tie?