Physics, 26.06.2019 02:10 abigail018
Work and energy a 68 kg students runs up a flight of stairs 3.5 meters high in 11.4 seconds. the student takes 8.5 seconds to run up the same flight of stairs during a second trial. determine the following: a. the work done in each trial. you should identify these values as w1 and w2. b. the power exerted by the student in each trial. you should identify these values as p1 and p2.
Answers: 1
Physics, 21.06.2019 17:40
Sarah and michelle work at a tech company that designs exercise apps. sarah tells michelle she has heard that james, their supervisor, interviewed with a competitor and may be leaving the company, which would open up a management position. what kind of power is sarah exerting?
Answers: 1
Physics, 21.06.2019 22:00
To run the physics cart, the fan speed of the cart is manipulated. this is the (blank) variable. the cart accelerates due to the speed of the fan. acceleration is therefore the (blank) variable. a “constant” is a parameter that stays the same regardless of the variables. one parameter of the cart that is held constant is the (blank) .
Answers: 1
Physics, 21.06.2019 22:30
The percent efficiency of a machine can never be 100% (or greater), because in the real world some energy is always converted into a. heat b. work c. input force d. output force
Answers: 1
Physics, 22.06.2019 07:40
Astudent creates a model of a closed ecosystem by filling a glass tank half full with water, then adding 10 snails and two small aquatic plants. the next day, all the snails are dead. what is the most likely cause of their death?
Answers: 3
Work and energy a 68 kg students runs up a flight of stairs 3.5 meters high in 11.4 seconds. the stu...
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