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A- If the velocity of a pitched ball has a magnitude of 35.0 m/s and the batted ball's velocity is 65.0 m/s in the opposite direction, find the magnitude of the change in momentum of the ball.
B- Find the magnitude of the impulse applied to it by the bat.
C- If the ball remains in contact with the bat for 2.00 ms, find the magnitude of the average force applied by the bat.
A second baseman tosses the ball to the first baseman, who catches it at the same level from which it was thrown. What is the ball's direction of motion just before it is caught
A car traveling at 25 m/s ( about 55 mph) crashes into a road barrier and comes to a stop in 0.2 sec. What is the average force in Newtons felt by a 75 Kg person in a set belt
A helicopter is flying in a straight line over a level field at a constant speed of 5.4 m/s, How would you calculate the angle the velocity vector makes with the ground at the instant before impact
A 0.410 kg pendulum bob passes through the lowest part of its path at a speed of 3.13 m/s. What is the tension in the pendulum cable at this point if the pendulum is 76.2 cm long.
1- if an area is described as a good air mass source region what information can you give about it?2- it is summer.
a medium carbon annealed steel rod has a rectangle cross section and must cope with tension of 3 tonnes. the thickness
Two point charges, q1 = 2.0 pC and q2 = -2.0 pC, are separated by 3.6 µm. What is the magnitude of the dipole moment
Observer A, who is at rest in the laboratory, is studing a particle that is moving through the laboratory at a speed of 0.624c. how far apart are the two markers in the laboratory
A particular nucleus of the element plutonium contains 94 protons and 150 neutrons. What is the magnitude of the force from the nucleus on a single electron that is at a distance of 0.563 × 10-12 m from the plutonium nucleus.
find the maximum height reached by a body of mass 5 kg thrown with a speed of 10 m/s. take g= 10 m/s^2. find also the work done in reaching that height
it takes 7500 J of work to slide a crate a distance of 15 m across a floor. A force of 650 N was applied to the rope. what angle did the rope make with the ground
A planet of mass 6.00 1025 kg is in a circular orbit of radius 2.00 1011 m around a star. The star exerts a force on the planet of constant magnitude 5.03 1023 N. The speed of the planet is 4.09 104 m/s. All through this half "year", how much work is..
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