A 6450kg gorilla slides down the side of a 20m tall mountain at 47degrees. If the coefficient of kinetic friction is 0.23, what is the net work done on the gorilla?
80kg Keoni Mabini is pulled 33m up makakilo hill at 45 degrees by Brayden Pfister with aforce of 200 N. If the coefficient of kinetic friction between the Keoni’s okole and the hillis 0.11, what is the change in her kinetic energy?
Anilov rolls Brayden’s 3.5kg ball 10m. If she exerts force of 12N and the coefficient offriction between the ball and the ground is 0.31, what is the ball’s final speed?
PLEASE HELP ASAP
Answers: 2
Physics, 21.06.2019 16:00
As shown in fig. p3.64, a closed, rigid tank fitted with a fine-wire electric resistor is filled with refrigerant 22, initially at 2108c, a quality of 80%, and a volume of 0.01 m3. a 12-volt battery provides a 5-amp current to the resistor for 5 minutes. if the final temperature of the refrigerant is 408c, determine the heat transfer, in kj, from the refrigerant.
Answers: 1
Physics, 22.06.2019 00:50
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 03:00
Do you agree with scientist’s prediction about the warming of alaska and other polar regions?
Answers: 2
Physics, 22.06.2019 09:50
If an athlete runs once around a track, back to the starting line, her average velocity is zero. true or false?
Answers: 3
A 6450kg gorilla slides down the side of a 20m tall mountain at 47degrees. If the coefficient of kin...
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