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To avoid hitting a pedestrian, a car driver slams on her brakes and comes to a complete stop after skidding 16 m. If the coefficient of kinetic friction between the car's tires and the road is 0.76, what was the speed of the car when the brakes were applied. (The car is old and does not have anti-lock brakes!) Give your answer to the nearest tenth of a m/s.
a series circuit has r400 ohm l10 mh c 0.1 micro farad and the frequency is 7960 hz what is the power factor ?and how
Suppose a tank contains 680 m3 of neon (Ne) at an absolute pressure of 1.01 x 10^5 Pa. What is the increase in the internal energy of the neon
A cord of length 1.0m has two equal-length sections with linear densities of 0.50 kg/m and 1.00 kg/m The tension in the entire cord is constant. What is the ratio of the oscillatory frequencies
A block of mass 1.60 kg is connected to a spring of spring constant 149 N/m which is then set into oscillation on a surface with a small coefficient of kinetic friction. find the total energy was lost in the first full oscillation
The length of a table in the laboratory was measured as 182.36 cm, What is the relative uncertainty of the length, What is the uncertainty of the length
A lens is coated with material of indexof refraction 1.38. What thickness of coating should be used to give maximum transmission
A ball with a mass of 0.620 kg is initially at rest. It is struck by a second ball having a mass of 0.370 kg, find the change in the total kinetic energy of the two balls
A nearsighted person wears glasses to correct the problem. How far in cm from the eyes is the person's far point located
An object moving with uniform acceleration has a velocity of 16 cm/s in the positive x direction when its x coordinate is 3 cm. If its x coordinate 1 s later is -5 cm, what is its acceleration.
In a physics laboratory experiment, a coil with 210 turns enclosing an area of 13cm^2 is rotated from a position, What is the average emf induced in the coil
When the displacement of a mass on a spring is 0.445 of the amplitude of its oscillation, what fraction of the mass's energy is kinetic energy
An airplane is flying with a velocity of 89.0 at an angle of 18.0 above the horizontal. When the plane is the distance 112 directly above a dog that is standing on level ground, a suitcase drops out of the luggage compartment. How far from the dog wo..
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