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A car is speeding up uniformly at a rate of 0.600 m/s2 while traveling counterclockwise around a circular track of radius 495 m. At the instant the car is moving due north, its speed is 8.00 m/s. What is the magnitude and direction of the total acceleration of the car at this instant? Use a positive angle for west of north and a negative angle for east of north.
A bicycle rider has a speed of 19.0 m/s at a height of 55.0 m above sea level when he begins coasting down hill. what is the rider's total mechanical energy when he coasts to a height of 25.0 m above sea level
It leaves the track horizontally, flies through the air, and subsequently strikes the ground. Elucidate the speed v of the block when it leaves the track?
A closed box has two metal terminals a and b. The inside of the box contains an unknown emf emf in series with a resistance R, Find the emf and R
Ultraviolet light of wavelength 280 nm is used in an experiment on photoelectric effect with lithium (c = 2.5 eV) cathode. Find the maximum kinetic energy of the photoelectrons and (b) the stopping potential.
A diverging lens with f = -25.5cm is placed 16.5cm behind a converging lens with f = 22.0cm. Where will an object at infinity be focused
How much time is necessary to catch the car
A 23-g bullet traveling 270m/s penetrates a 1.8kg block of wood and emerges cleanly at 195m/s. how fast does it move after the bullet emerges
A quantity of heat is removed from a hot reservoir at absolute temperature T and then is added to a cold reservoir at absolute temperature T/2. The cold reservoir experiences an entropy increase S. What is the change in the entropy of the universe..
A motorcycle has a constant speed of 21.0 m/s as it passes over the top of a hill whose radius of curvature is 132 m. The mass of the motorcycle and driver is 343 kg. Determine the magnitude of the normal force that acts on the cycle.
An elevator accelerates upward at 1 m/s2. When the elevator is moving upward at 2 m/s, a bolt drops from the ceiling which is 2.5 m above the?
Find out the rotational inertia of this object (a) about an axis through the center of the triangle and perpendicular to its plane (b) and about an axis that passes through one vertex and the midpoint of the opposite side.
Vector A has a magnitude of 11 and points in the positive x-direction, with the positive x-axis. What is the magnitude of A and B
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