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A 3.00kg block starts from rest at the top of a 30.0 degree incline and slides a distance of 2.00m down the incline in 1.50s. Find (a)the magnitude of the acceleration of the block, (b) the coefficient of kinetic friction between block and plane, (c) the friction force acting on the block and (d) the speed of the block after it has slid 2.00m.
In response to a stimulus, membrane can become permeable to Na ions. As Na ions rush into the cell, the interior of the cell reaches an electric potential of about 40 rm mV.
A moving particle encounters an external electric field that decreases its kinetic energy from 8560 eV to 7750 eV as the particle moves from position A to position B. Determine the charge of the particle
A 60 skydiver can be modeled as a rectangular "box" with dimensions 21 41 1.8. What is his terminal speed if he falls feet first
Two polarizers are oriented at 48° to each other and polarized light incident on them. what was the initial polarization direction of the incident light
The pupil of an eagle's eye has a diameter of 6.0 mm. Two field mice are separated by 0.010 m. How much time passes until the eagle sees the mice as separate objects
A car is parked on a cliff overlooking the ocean on an incline that makes an angle of 25.0° below the horizontal. Find the car's position relative to the base of the cliff when the car lands in the ocean
In getting ready to slam-dunk the ball, a basketball player starts from rest and sprints to a speed of 6.6 m/s in 2.91 s. determine the distance he runs
A cosmic-ray proton is moving at such a speed that it can travel from the Moon to Earth in 1.5s. At what fraction of the speed of light is the proton moving
Find out an average acceleration of the motorcycle
A car is parked on a cliff overlooking the ocean on an incline that makes an angle of 17.0° below the horizontal. Find the length of time the car is in the air
A piston, A, as shown below, has a diameter of 0.81 cm. A second piston, B has a diameter of 3.9 cm. conclude the force, F, necessary to support the 508.0 N weights in the absence of friction.
A spring with spring constant 12.5 hangs from the ceiling. A 400 ball is attached to spring and allowed to come to rest. It is after that pulled down 6.80 and released. What is the time constant if the ball's amplitude has decreased to 3.90 after 57...
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