Physics, 20.09.2020 09:01 mai1261

Kim won a 300 m race in 40 s. What was her rate of speed?

Answers: 2

Show answers

Other questions on the subject: Physics

Physics, 22.06.2019 02:00, ummsumaiyah4185

Write the correct abbreviation for each metric unit

Answers: 1

continue

Physics, 22.06.2019 04:00, Carly3393

10 newton object is placed 3 meters from the fulcrum. at what distance on the other side would you need to place a 15 newton object to balance the lever? show your work!

Answers: 2

continue

Physics, 22.06.2019 11:00, kylieweeks052704

A0.580-kg rock is tied to the end of a string and is swung in a circle with a radius of 0.500 meters. the velocity of the rock is 4.50 m/s. what is the centripetal force acting on the rock? 15.5 n 5.22 n 69.8 n 23.5 n

Answers: 1

continue

Physics, 22.06.2019 12:30, lanaasad7733

An ice-making machine inside a refrigerator operates in a carnot cycle. it takes heat from liquid water at 0.0 degrees celsius and rejects heat to a room at a temperature of 19.2 degrees celsius. suppose that liquid water with a mass of 76.3kg at 0.0 degrees celsius is converted to ice at the same temperature. take the heat of fusion for water to be l_f = 3.34*10^5 j/kg. how much energy e must be supplied to the device? express your answer in joules.