Physics, 24.12.2019 18:31 mak6156

Stunt pilot weighing 0.70 kn performs a vertical circular dive of radius 0.80 km. at the bottom of the dive, the pilot has a speed of 0.20 km/s which at that instant is notchanging. what force does the plane exert on the pilot

Answers: 1

Show answers

Another question on Physics

Physics, 21.06.2019 23:00

Acoal-fired plant generates 600 mw of electric power. the plant uses 4.8 x 10^6 kg of coal each day, and the heat of combustion of coal is 3.3x 10^7 j/kg. the steam that drives the turbines is at a temperature of 300° c, and the exhaust water is at 37° c. (a) what is the overall efficiency of the plant for generating electric power? (b) how much thermal energy is exhausted each day? (c) what is the change in entropy of the universe for this heat engine? (d) using the same heat reservoirs, what is the maximum possible (carnot) efficiency for a heat engine?

Answers: 1

Answer

Physics, 22.06.2019 08:30

Brutus, the dog, is pulling a bone to the left with a force of 20 n. lassie, another dog, is pulling a bone to the right with a force of 18n. what is the net force? a. b. c.

Answers: 1

Answer

Physics, 22.06.2019 16:50

Acommercial refrigerator with refrigerant-134a as the working fluid is used to keep the refrigerated space at -35°c by rejecting waste heat to cooling water that enters the condenser at 18°c at a rate of 0.25 kg/s and leaves at 26°c. the refrigerant enters the condenser at 1.2 mpa and 50°c. if the compressor consumes 3.3 kw of power, determine (a) the mass flow rate of the refrigerant, (b) the refrigeration load, (c) the cop, and (d) the minimum power input to the compressor for the same refrigeration load.

Answers: 2

Answer

Physics, 22.06.2019 17:30

Four objects each with charge +2.0×10−7c are located at the corners of a square whose sides are 2.0 m long. part a what quantities can be determined using this information? check all that apply. the electric force on a charged object placed at the center of the square. the mass of each object. the total electric potential energy of the system consisting of the four charged objects. part b find the electric force on a charged object placed at the center of the square.

Answers: 1

Answer

You know the right answer?

Stunt pilot weighing 0.70 kn performs a vertical circular dive of radius 0.80 km. at the bottom of t...

Questions