Physics, 01.11.2019 02:31 Smileymarie31511
Consider each of the following processes. would the calculated value of ∆e for the system be a positive or negative answer? a. water warms up when left in the sun (system = water) b. a gas is compressed. (system = the gas) c. a hot object cools when left out. (system = the object) d. in a car engine, a mixture of air and fuel combusts and expands, pushing the piston. (system = the cylinder of the engine)
Answers: 3
Physics, 21.06.2019 17:00, jordynsmith02
Shelly experiences a backward jolt when the driver starts the school bus. which of the following explains this phenomenon? a. the inertia of shelly b. the inertia of the bus c. the normal force of the seats on shelly d. the net force acting on shelly in a backward direction e. a zero net force acting on shelly
Answers: 1
Physics, 21.06.2019 19:10, shazanah95
Athin, square metal plate measures 14 cm on each side and has emissivity of 0.60. the plate is heated to a temperature of 745°c. what is the rate at which the plate radiates energy ? the stefan-boltzmann constant is 5.67 × 10-8 w/(m2 ? k4). remember that the plate will radiate energy from both its top and bottom surfaces.
Answers: 1
Physics, 22.06.2019 12:00, fryday2516
Lacie kicks a football from ground level at a velocity of 13.9 m/s and at an angle of 25.0° to the ground. how long will the ball be in the air before it lands? how far will the football travel before it lands?
Answers: 1
Consider each of the following processes. would the calculated value of ∆e for the system be a posit...
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