Physics, 30.10.2020 17:20 darenl2163
What speed should a spaceship of mass 5.21 x 107kg moving around a planet
only by the gravitational force be, if the distance between them is 6.27 x 108 m
and the mass of the planet is 4.76 x 1026 kg? Estimate G as 6.67 * 10-11 N (m/kg)
A. 7.12 x 103 m/s
B. 6.23 x 103 m/s
С. 4.25 x 103 m/s
D. 7.43 105 m/s
E. 7.25 x 103 m/s
Answers: 3
Physics, 22.06.2019 00:30
Orange juice has a lower or higher viscosity than chocolate syrup
Answers: 2
Physics, 22.06.2019 10:00
Aria drove to the store, did some shopping, and then came home. during maria's trip, when was her displacement equal to zero?
Answers: 1
Physics, 22.06.2019 10:30
An insulated 40 ft^3 rigid tank contains air at 50 psia and 120°f. a valve connected to the tank is now opened, and air is allowed to escape until the pressure inside drops to 25 psia. the air temperature during this process is kept constant by an electric resistance heater placed in the tank. determine the electrical work done during this process.
Answers: 2
Physics, 22.06.2019 10:30
Air is to be preheated by hot exhaust gases in a cross-flow heat exchanger before it enters the furnace. air enters the heat exchanger at 95 kpa and 20°c at a rate of 0.6 m^3/s. the combustion gases (cp = 1.10 kj/kg°c) enter at 160°c at a rate of 0.95 kg/s and leave at 95°c. determine the rate of heat transfer to the air and its outlet temperature.
Answers: 2
What speed should a spaceship of mass 5.21 x 107kg moving around a planet
only by the gravitational...
Mathematics, 13.02.2021 22:00
Biology, 13.02.2021 22:00
Chemistry, 13.02.2021 22:00
Mathematics, 13.02.2021 22:00
Mathematics, 13.02.2021 22:00
Mathematics, 13.02.2021 22:00
Mathematics, 13.02.2021 22:00
Mathematics, 13.02.2021 22:00