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To test the quality of a tennis ball, you drop it onto the floor from a height of 4.00 m. It rebounds to a height of 2.40 m. Suppose the ball is in contact with the floor for 14.0 ms.
What is the magnitude of its average acceleration during the contact with the floor?
The mass of a robot is 4340 kg. This robot weighs 3000 N more on planet A than it does on planet B. Both planets have the same radius of 2.37 × 107 m
An electron is accelerated from rest through a potential difference of 70V. What is the de Broglie wavelength of the electron
One of the events in the Scottish Highland Games is the sheaf toss, in which a 7.92-kg bag of hay is tossed straight up into the air using a pitchfork. Using the total impulse produced by gravity, determine how long the sheaf is airborne
In an experiment on the transport of nutrients in a plant's root structure, two radioactive nuclides X and Y are used. What is the half-life of isotope X
In a certain region of space, the electric field, E, is constant in direction (say horizontally in the +x-direction), but its magnitude decreases.
A low friction cart of mass m, traveling at speed v, collides (perfectly) elastically with a cart of triple the mass, initially at rest. What is the result of this collision
Suppose you pour water into a container until it reaches a depth of 12 cm, What is the pressure at the bottom of the container
A person of mass 89.70 kg escapes from the burning building by jumping from a window situated 27.50 m above a catching net.
A lens in Lick Observatory's 36-inch refracting telescope has a thickness of 1.96 inches at its center and an index of refraction n=1.52. What is the light speed in the lens
A force with a magnitude of 25 N and directed at an angle of 37° above the horizontal is used to move a 10-kg crate along a horizontal surface at constant velocity
A solar collector is placed in direct sunlight where it absorbs energy at the rate of 890 J/s for each square meter of its surface. What equilibrium temperature does the collector reach
Illustrate what is the absolute pressure at a point that is 9.82 cm below the ethyl alcohol-mercury interface?
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