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Determine the relationship between the radius and the velocity of a rotating object?
Determine the relationship between velocity of a rotating object and the centripetal force exerted on it?
Determine the relationship between the mass of a rotating object and its velocity?
A state highway patrol car radar unit uses a frequency of 8.00×10^9Hz. What frequency difference will the unit detect from a car receding at the speed of 44.50 from a stationary patrol car.
Two particles, with charges of 20 nC and -20nC, are placed at the points with coordinates (0, 4 cm) and (0, -4 cm). A particle with charge 10 nC is located at the origin. Find the electric potential energy of the configuration of the three fixed ch..
A spring has a spring constant of 578N/m. When used tosuspend an object in the air, the spring stretches by0.0640m. What buoyant force acts on the object
In tae-kwon-do, a hand is slammed down onto a target at a speed of13m/s and comes to a stop during the4.4ms collision. find the magnitude of the impulse on the hand from the target
A student weighing 800 N crouches on a scale and suddenly springs vertically upward.His roommate notices that the scale reads 900 N, With what acceleration does he leaves the scale
An 800-kHz radio signal is detected at a point 4.5 km distant from a transmitter tower. What is the magnetic field amplitude of the signal at that point
The Mariana trench is located in the Pacific Ocean at a depth of about 11 000 m below the surface of the water. For comparison, determine the weight of a jetliner whose mass is 6.01 × 105 kg
From the Bohr energy levels calculate the x-ray energy for an electron transition from n=3 to n=2 in Calcium? Find how much energy would have to be transferred to an electron in the n=2 level to raise it to the n=3 level
A 28.0-kg block is connected to an empty 2.46-kgbucket by a cord running over a frictionless pulley. Calculate the mass of sand added to the bucket
Glycerine in water diffuses along a horizontal column that has a cross-sectional area of 1.9 cm2. The concentration gradient is 3.2 10-2 kg/m4, Determine the diffusion coefficient
Defibrillators are used to revive a person when their heart has stopped beating. How do they work? What care must the person administering the treatment take
A ball is tossed from an upper-story window of a building. The ball is given an initial velocity of 8.90 m/s at an angle of 16.0° below the horizontal. Find the height from which the ball was thrown
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