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a stone is dropped from the roof of a building; 1.20 seconds after that, a second stone is thrown straight down with an initial speed of 22m/s, and the 2 stones land at the same time
i) How long did it take the first stone to reach the ground?
ii) How high was the building?
iii) What are the speeds of the two stones just before they hit the ground?
A heater coil connected to a 220V ac line has a resistance of 42.1Ohm. What is the average power used, What is the maximum value of the instantaneous power
Find out parametric equations for the shell's trajectory relative to the coordinate system. What is the maximum distance at which these headlights could be resolved as separate points of light on a photograph taken with a camera whose aperture has a ..
A gymnast is performing a floor routine. In a tumbling run she spins through the air, How much time does this maneuver take
A 100 kg crate is pushed at constant speed up the frictionless 31° ramp shown in the figure. What horizontal force F is required
Express the power in terms of some or all of the variables given in the problem introduction.
A baseball thrown at an angle of 55.0? above the horizontal strikes a building 17.0m away at a point 6.00m above the point from which it is thrown. Find the magnitude of the initial velocity of the baseball
A current of 2.5 a runs through 20 circular wire loops of diameter 10 cm. What is the magnetic field magnitude and direction at the center of the loops? (Show the derivation of any formula that you use.)
Suppose that the net horizontal force is because of rolling friction only and take the free-fall acceleration to be g = 9.80 m/s^2. What is the coefficient of friction for the tire under low pressure.
While looking into a silver Christmas ornament, If your nose is only 6.25 inches from the ornament, and the diameter of the ornament is 4.85 cm, how far behind the ornament does your nose appear
what is the equation for the mass moment of inertia of a mass rotating around a sliding hinge
The range of human hearing extends from approximately 20 Hz to 20000 Hz. Find out the wavelengths of these extremes while speed of sound in air is equal to 348 m/s.
Calculate the electric force Fe between a stationary proton and uranium nucleus...separated by a distance of 3.6 nm, determine the intial acceleration of the proton
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