Answers: 1

Physics, 22.06.2019 00:00, cchsemily7210

A1000-kg weather rocket is launched straight up. the rocket motor provides a constant acceleration for 16-s, then the motor stops. the rocket altitude 20-s after launch is 510-m. you can ignore any effects of air resistance. a. what was the rocket’s acceleration during the first 16-s? b. what is the rocket’s speed as it passes through a cloud 5100-m above the ground?

Answers: 1

Physics, 22.06.2019 00:50, Amandarobersonn

While goofing off at the ice skating rink, a student takes off her shoes and places each of them on the ice. her friend, a hockey player, then shoots a hockey puck at each shoe. the first puck immediately comes to rest after it collides with the left shoe. the second puck rebounds after it collides with the right shoe. if each hockey puck has the same incoming speed, which shoe has greater speed after the collision? the right shoe. both shoes have the same speed. the left shoe.

Answers: 3

Physics, 22.06.2019 03:50, dsaefong00

Nitrogen at 100 kpa and 25∘c in a rigid vessel is heated until its pressure is 260 kpa. calculate the work done and the heat transferred during this process, in kj/kg. for the nitrogen, cv= 0.743 kj/kg⋅k at room temperature. (round the final answers to one decimal place.)the work done during this process is (kj/kg)? the heat transferred during this process is (kj/kg)?

Answers: 2

Physics, 22.06.2019 04:30, jakiyahporter0817

Asystem containing an ideal gas at a constant pressure of 1.22×10^5 pa gains 2140 j of heat. during the process, the internal energy of the system increases by 2320 j. what is the change in volume of the gas?

Answers: 3

Shawn and his bike have a total mass of

50.9 kg. shawn rides his bike 0.88 km in

16.3 mi...

50.9 kg. shawn rides his bike 0.88 km in

16.3 mi...

Mathematics, 20.03.2020 09:47

Mathematics, 20.03.2020 09:47