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A major-league catcher gloves a 81 mi/h pitch and brings it to rest in 0.15 m. If the force exerted by the catcher is 803 N, what is the mass of the ball?
The radius of the tires on your car is 0.33 m. You drive 1600 m in a straight line. What is the angular displacement of a point on the outer rim of a tire, around the center of the tire, during thi
A 0.135kg ball is thrown straight up from 1.94m above the ground. Its initial vertical speed is 12.00m/s. A short time later, it hits the ground. Calculate the total work done by the force of gravi
A 71 skier encounters a dip in the snow's surface that has a circular cross section with a radius of curvature of 12 .
Determine the speed of each ball after the collision. Determine the direction of tennis ball after the collision.Determine the direction of 0.10-{rm kg} ball after the collision.
The supersonic aircraft Concorde has a length of 63.0 meters when sitting on the ground on a typical day when the temperature is 18.0 Celsius. The Concorde is primarily made of aluminum. In flight
A 18000 airplane lands with a speed of 82 on a stationary aircraft carrier deck that is 115 long. Find the work done by nonconservative forces in stopping the plane.
What is the kinetic energy of the astronaut after the push?What is the kinetic energy of the space capsule after the push?
A dentist uses a small mirror with a radius of 42 mm to locate a cavity in a patient's tooth. If the mirror is concave and is held 15 mm from the tooth, what is the magnification of the image
Two people, on each side of a line directly in front of the window, in the row along the wall hear no sound. What minimum distance are they from each other?
A 0.10-kg object with a velocity of 0.20 m/s in the +x direction makes a head-on elastic collision with a 0.15 kg object initially at rest. What is the final velocity of the 0.10-kg object after col
An ocean liner leaves New York City and travels 20.6 ° north of east for 289 km. How far east and how far north has it gone? In other words, what are the magnitudes of the components of the shi
A hollow aluminum cylinder is to be fitted over a steel piston. At 22°C the inside diameter of the cylinder is 99.2% of the outside diameter of the piston. To what common temperature should the
Find a relationship between the orders m1 and m2 that determines where a bright fringe of the green light coincides with a bright fringe of the blue light.
The wave length of an electromagnetic wave is measured to be 300m. (a) What is the frequency of the wave? (b) What type of EM wave is it?
The generator at a power plant produces AC at 48,000 V. A transformer step this up to 345,000 V for transmission over power lines. If there are 1000 turns of wire in the input coil of the transform
A closely wound rectangular coil of 80 turns has dimensions 25.0 rm cm by 40.0 rm cm. The plane of the coil is rotated from a position in which it makes an angle of 37.0 degrees with a magnetic fie
Rabbit runs in a straight line with a velocity of +1.4 m/s for a period of time, rests for 11 s, and then runs again along the same line at +0.64 m/s for an unknown amount of time. The rabbit trave
What is the smallest radius r that results in an intensity minimum at the detector? State your answer in terms of the given variables using vs for the speed of sound and π if necessary.
Lightning occurs when there is a flow of electric charge (principally electrons) between the ground and a thundercloud. How much charge flows between the ground and the cloud in this time?
An electric force of 4.0 N exists between two objects separated from each other by a distance of r. If the distance is decreased to 0.50r, calculate the magnitude of the force between the two objec
A -5.00nC point charge is on the axis at x= 1.20 m . A second point charge Q is on the x axis at -0.600m. What must be the sign and magnitude of Q for the resultant electric field at the origin to be
A 4.00-kg model rocket is launched, expelling 54.0 g of burned fuel from its exhaust at a speed of 690 m/s. What is the velocity of the rocket after the fuel has burned? Hint: Ignore the external f
During a violent thunderstorm, hail the size of marbles (diameter = 1.6 cm) falls at a speed of 36 m/s. There are estimated to be 50 hailstones per cubic meter of air. Assume that, as for ice, 1 cm3
A proton is moving in the uniform electric field of part A. At point A, the velocity of the proton is 1.87×10^4 m/s, again pointed towards the east. What is the speed of the proton at point B?