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A uniform electric field with a magnitude of 125,000 N/C passes through a rectangle with sides of 2.50 m and 5.00 m. The angle between the electric field vector and the vector normal to the rectangu
A spring (70 N/m) has an equilibrium length of 1.00m. The spring is compressed to a length of 0.50} and a mass of 1.8 k is placed at its free end on a frictionless slope which makes an angle of 41 d
A flight attendant pulls her 69 N flight bag a distance of 246 m along a level airport floor at a constant velocity. The force she exerts is 37 N at an angle of 58° above the horizontal. Find t
A submarine dives 155.0 m at an angle of 12.0? below the horizontal. What is the horizontal component of the submarine's displacement?
A grindstome of radius 4m is initially spinning with an angular speed of 8 rad/s. Angular speed is the increased to 10 rad/2 over the next 4 seconds. What is the average tangential speed at the edge
The acceleration due to gravity on the moon is 1.62 {rm{ m/s}}^{rm{2}}. What is the length of a pendulum whose period on the moon matches the period of a 1.60-m-long pendulum on the earth?
A stone is dropped at t = 0. A second stone, with 6 times the mass of the first, is dropped from the same point at t = 59 ms. (a) How far below the release point is the center of mass of the two st
Water flows over a dam at the rate of 680 and falls vertically 86 before striking the turbine blades. Calculate the speed of the water just before striking the turbine blades (neglect air resistance
A basketball player achieves a hang time of 0.61 s in dunking the ball. What vertical height will he attain? The acceleration of gravity is 9.8 m/s². Answer in units of m.
A block of mass m is kept on a rough plank at a distance l from one of its end.if the plank is rotated with certain angular acceleration "alpha",the block slides when the plank makes an angle "theta
Children in a tree house lift a small dog in a basket 4.70 m up to their house. If it takes 201 J of work to do this, what is that combined mass of the dog and basket?
An 87 gram arrow is fired from a bow whose string exerts an average force of 130 Newtons on the arrow over a distance of 82 centimeters. What is the speed of the arrow as it leaves the bow?
A 2000 kg car is slowed down uniformly from 16.0 m/s to 10.00 m/s in 3.60 s. (a) What average total force acted on the car during that time?
A rectangular loop of wire is moving toward the bottom of the page with a speed of 0.025 m/s (see the drawing). The loop is leaving a region in which a 2.8 T magnetic field exists; the magnetic fiel
An end milling operation is performed on a NC machining center. The total length of travel is 625mm along a straight line path to cut a particular workpiece. Cutting speed = 2.0m/s and chip load (fe
A container of volume 0.42 m3 contains 2.8 mol of argon gas at 31°C. Assuming that argon behaves as an ideal gas, find the total internal energy of this gas.
Analyze the modern-day relevancy of the models, such as in media advertisements or education.
A steam catapult launches a jet aircraft (from rest) from the aircraft carrier John C. Stennis, giving it a speed of 165 mi/h in 2.00 s. Find the average acceleration of the plane.
A 661-kg elevator starts from rest and moves upward for 2.50 s with constant acceleration until it reaches its cruising speed, 1.62 m/s. (a) What is the average power of the elevator motor during th
A rock is dropped from a sea cliff and the sound of it striking the ocean is heard 5.4 seconds later. If the speed of sound is 340 m/s, how high is the cliff?
A Federation starship ( 2.00×106 kg) uses its tractor beam to pull a shuttlecraft ( 2.00×104 kg) aboard from a distance of 15.0 km away. The tractor beam exerts a constant force of 4.0 t
A 10 gram bullet is fired horizontally from a gun and embeds itself into a 50 gram block of wood initially at rest on a wooden horizontal surface. After this collision the wood block slides 100 met
A rifle with a barrel length of 57 cm fires a 8 g bullet with a horizontal speed of 370 m/s. The bullet strikes a block of wood and penetrates to a depth of 14 cm. What resistive force (assumed to
A toy car X of mass 0.200 kg moves along a frictionless surface with a velocity of 0.180 m/s. It collides with another toy car Y, with a mass of 0.250 kg and a speed of 0.130 m/s in the same direct