Physics, 17.11.2020 18:20 ajmitchell04
In 0.72s a student exerts 500 N of force lifting a backpack straight up 1.5 m. How
much did the backpack's potential change?
increased by 750 J
decreased by 333 J
increased by 333 J
decreased by 750 J
Answers: 1
Physics, 22.06.2019 17:30
Asilver dollar is dropped from the top of a building that is 1324 feet tall. use the position function below for free-falling objects. s(t) = β16t2 + v0t + s0 (a) determine the position and velocity functions for the coin. s(t) = v(t) = (b) determine the average velocity on the interval [1, 2]. ft/s (c) find the instantaneous velocities when t = 1 second and t = 2 seconds. v(1) = ft/s v(2) = ft/s (d) find the time required for the coin to reach the ground level. (round your answer to three decimal places.) t = s (e) find the velocity of the coin at impact. (round your answer to three decimal places.) ft/s
Answers: 3
Physics, 22.06.2019 20:40
Aloop of wire is in a magnetic field such that its axis is parallel with the field direction. which of the following would result in an induced emf in the loop? choose all that apply. a loop of wire is in a magnetic field such that its axis is parallel with the field direction. which of the following would result in an induced emf in the loop? choose all that apply. moving the loop outside of the magnetic field region. spin the loop such that its axis does not consistently line up with the magnetic field direction. change the magnitude of the magnetic field. change the diameter of the loop
Answers: 1
Physics, 22.06.2019 21:00
During a car accident, a 125kg driver is moving at 31m/s and in 1.5s is brought to rest by an inflating air bag. what is the magnitude of the change in momentum to the driver
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Physics, 23.06.2019 02:30
Why does the liquid rise up through the dip tube when the valve is open
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In 0.72s a student exerts 500 N of force lifting a backpack straight up 1.5 m. How
much did the bac...
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