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A net force of 132 N acts on a baseball (m=140g) for a period of 0.045s. What is the magnitude of the change in momentum of the ball?
A person runs with speed v toward a tunnel of length L, When the person and the photon eventually meet, the person's location is a fraction f along the tunnel. What is f
A thermodynamic system is taken from state A to state B tostate C, and then back to A. What is the net work done by the system as it moves once through the cycle ABCA
When the plunger is pushed, contents of the syringe are forced throughout a hollow needle (also of circular cross-If a 4.0 N force is applied to plunger and diameters of the plunger and the needle are 1.20 cm and 2.50 mm, correspondingly, what force ..
A projectile is launched with a speed of 18m/s at an angle of 65 degrees to the horizontal. What is the maximum range of the projectile
A helicopter is moving horizontally to the right at a constantvelocity. The weight of the copter is 53800 newtons. what is the magnitude of the lift force
Assuming that the atom was initially at rest, determine the recoil speed of the hydrogen atom when this photon is emitted
q1. an iron plate 30 cm thick is magnetized to saturation in a direction parallel to the surfaces of the plate. a 20
The equation of a transverse wave traveling along a very long string is y = 5.0 sin (0.055 ?x + 6.0 ?t), where x and y are expressed in centimeters and t is in seconds. Determine the amplitude of propagation of the wave.
What is kinetic energy of the shell
Two rigid rods are oriented parallel to each other and to the ground. The rods carry the same current in the same direction. Determine the current in the rods
The vertical displacement of particles in a string (when a wave is propagating through it) is given by y = (0.02) sin[(10?)t - (8?)x], where everything is measured in standard units, meters and seconds. What is the amplitude of the wave?
A CD (radius 6.0 cm) is spinning freely with an angular velocity of490rpm when a bug drops onto the CD a distance4.4cm from the center. find the ratio of the bug's mass to the mass of the CD
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