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A soft tennis ball is dropped onto a hard floor from a height of 1.60 M and rebounds to a height of 1.13 m. Assume that the positive direction is upward. Calculate its velocity just before it hits the floor.. calculate 3.50 meters per second. How much did the ball compress during its collision with the floor, assuming the floor is absolutely rigid?
a massive particle, rest mass M absorbs a photon. The inertial mass increases to 1.05 M. Determine the energy of the incoming photon
The membrane surrounding a living cell consists of an inner and an outer wall that are separated by a small space.
A mass is projected upwards from the Earth's surface with an initial velocity of 7000m/s. Determine how far into space it will go before it stops rising and is on the point of returning to earth
A simple pendulum has a length of 1.15 m and a mass of 1.25 kg. The amplitude of oscillations of the pendulum is 30.0 cm. Calculate the quantum number for the pendulum.
When you drop a rock into a well you hear the splash 1.0 seconds later. How deep is the well
Light of wavelength 540.00 nm is incident normally on a diffraction grating, How many slits/mm are marked on the grating
A winch is used to drag a 300 N crate up a ramp at a constant speed of 68.0 cm/s by means of a rope that pulls parallel to the surface of the ramp. If the rope were suddenly to snap, what would be the acceleration of the crate immediately after the..
Why do you think that infusion of pure sodium-free ß-hydroxybutyric acid prepared resulted in a 50% decrease in renal ammoniogenesis in spite.
Biological muscle cells can be thought of as nanometres that utilize the chemical energy of ATP to produce mechanical work. Measurements show that the active proteins within a muscle cell (such as myosin and act in) can produce a force of about 7.5 p..
A skier is initially stationary, but then accelerates at2.4 m/s2 down a hill that isinclined 23° below the horizontal. How far horizontally and vertically has the skier traveled in6 s?
An electron is placed in a uniform electric field of strength 210 N/C. If the electron is at rest at the origin of a coordinate system at t = 0 and the electric field is in the positive x-direction
a square is 1.0 m on a side. charges of 4.0 c are placed in two diagonally opposite corners. in the other two corners
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