Physics, 20.08.2021 17:20 angehtjgdb

A family goes on a road trip that is 500 km long. It takes the family 2 hours and 30 minutes to complete the trip. What was the family’s speed? A) 2.17 km/h
B) 200 km/h
C) 1.33 km/h
D) 250 km/h

Answers: 2

Show answers

Another question on Physics

Physics, 21.06.2019 22:40

Explain vector addition, triangle method and parallelogram method

Answers: 1

Answer

Physics, 22.06.2019 09:30

Which are advantages of renewable resources? check all that apply. renewable energy supplies are completely reliable everywhere. some renewable resources will never be used up. little or no waste is produced by renewable resource plants. electricity can be generated in large quantities. many renewable energy facilities have lower operating costs.

Answers: 1

Answer

Physics, 22.06.2019 14:20

4r-134a enters the condenser of a residential heat pump at 800 kpa and 50°c at a rate of 0.022 kg/s and leaves at 750 kpa subcooled by 3°c. the refrigerant enters the compressor at 200 kpa superheated by 4°c determine (a) the isentropic efficiency of the compressor, (b) the rate of heat supplied to the heated room, and (c) the cop of the heat pump. also, determine (d) the cop and rate of heat supplied to the heated room if this heat pump operated on the ideal vapor-compression cycle between the pressure limits of 200 and 800 kpa. (0.757, 4.37 kw, 5.12, 6.18, 3.91 kw)

Answers: 3

Answer

Physics, 22.06.2019 17:30

Asilver dollar is dropped from the top of a building that is 1324 feet tall. use the position function below for free-falling objects. s(t) = −16t2 + v0t + s0 (a) determine the position and velocity functions for the coin. s(t) = v(t) = (b) determine the average velocity on the interval [1, 2]. ft/s (c) find the instantaneous velocities when t = 1 second and t = 2 seconds. v(1) = ft/s v(2) = ft/s (d) find the time required for the coin to reach the ground level. (round your answer to three decimal places.) t = s (e) find the velocity of the coin at impact. (round your answer to three decimal places.) ft/s

Answers: 3

Answer

You know the right answer?

A family goes on a road trip that is 500 km long. It takes the family 2 hours and 30 minutes to comp...

Questions