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A golf ball has a mass of 0.05 kg. It is initially at rest, but after being struck by a golf club it is given a speed of 30 m/s. The club and the ball are in contact for 2 ms (.002 seconds).
a) What is the average force acting on the ball?
b) What is the impulse of the net force on the golf ball during its contact with the golf club?
A projectile is shot on level ground with a horizontal velocity of 18 m/s and a vertical velocity of 41 m/s, Find the time the projectile is in the air. The acceleration due to gravity is 9.8 m/s2
The image behind a convex mirror (radius of curvature = 72 cm) is located 14 cm behind the mirror. Where is the object located? What is the magnification of the mirror?
The body in the figure is pivoted at O, and two forces act on it as shown. If r1 = 2.65 m, r2 = 2.20 m, F1 = 4.24 N, F2 = 5.71 N, ?1 = 63.0°, and ?2 = 55.0°, what is the net torque about the pivot
At target prctice, Scott holds his bow and pulls the arrowback a distance of 0.30m by exerting an average force of 40.00N what is the potential energy stored in the bow
A 7.3×10?4V/m electric field creates a 5.0×1017electrons/s current in a 2.0-mm-diameter aluminum wire. What is the mean time between collisions for electrons in this wire
Calculate the mass of Earth from the period of the moon, T = 27.3 d; its mean orbital radius, rm = 3.84 108 m; and the known value of G
a bathyshpere dives to a depth of 1000 m in the ocean. if the inside is maintained at one atmosphere, what is the net force acting on the round window
Two point charges, q1 = 2.0 pC and q2 = -2.0 pC, are separated by 5.6 µm. What is the dipole moment of this pair of charges
At a distance of 7.00×10^12 m from a star, the intensity of the radiation from the star is 15.1 W/m^2. Assuming that the star radiates uniformly in all directions, what is the total power output of the star?
q1. a horizontal uniform bar of mass 2.6 kg and length 3.0 m is hung horizontally on two vertical strings. string 1 is
At the moment of release, two planes have the same speed of 152 m/s, and each is carrying a tank at the same height of 2.05 km above the ground. find direction of the velocity with which the fuel tank hits the ground if it is from plane A
determine the heat work done and changing enthalpy in each processes and complete cycle1. adiabatic process v goes 12
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