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A skydiver opens the parachute at the moment when he is 540 meters above the ground and his speed (right before opening the parachute) is 97m/s. What should be the magnitude of the air resistance fo
What is the maximum speed of a 2.20g particle that oscillates between x =2.0mm and x =8.0mm, Suppose the collision between the packages is perfectly elastic. To what height does the package of mass m
A curve is banked at an angle of 30 degrees with respect to the horizontal. what is the ideal speed for a motorist to take the curve when it is covered by glare ice
Resistors R1, R2, and R3 have resistances of 37.0-ohm, 22.0-ohm, and 41.0-ohm respectively. R1 and R2are connected in series, and their combination is in parallel with R3. What is the equivalent res
A 25-ohm resistor, a 55-ohm resistor, and a 75-ohm resistor are connected in parallel and placed across a 9.0-V battery. What is the current through each branch of the circuit
Three 25.0-ohm resistors are connected in series across a 60.0-V battery. What is the equivalent resistance of the circuit and What is the current in the circuit
Why is this process more difficult than when the leading coefficient is equal to one and give an example. How could we apply FOIL in this context?
A probe is traveling in deep space at a speed of 4000 m/s. It has a total mass of 5000 kg. It fires its rocket motor to brake to 3000 m/s, what is the probe's final velocity
A 4kg duck sitting on a pole 20 m tall is struck by a 20 g bullet moving horizontally at 200 m/s. How far from the base of the pole does the duck strike the ground
Determine the average speed for the trip
Suppose a neutron, traveling to the right at 1000 m/s, strikes a proton moving upward at 500 m/s. Find the magnitude and direction of the deuteron velocity vector
A 16000kg airplane lands with a speed of 92m/son a stationary aircraft carrier deck that is 115 mlong. Find the work done by nonconservative forces in stopping the plane
Jack and Jill ran up the hill at 3.5m/s . The horizontal component of Jill's velocity vector was 2.5m/s . What was the angle of the hill? What was the vertical component of Jill's velocity?
A 0.26-kg rock is thrown vertically upward from the top of a cliff that is 32m high. Assuming that air resistance can be ignored, find the initial speed of the rock
Consider a plane that flies due east on a trip, and then returns due west following the same exact route. Imagine also that there are no winds in each trip. Flying due east, the plane flies with
The force of an explosion on the piston of a gasoline engine is due to the change of momentum of the gas particles. What must be the speed of the molecules of gas after the explosion
A force of 4.7N is required to stretch a certain spring by 1.4cm, How far must this spring be stretched for its potential energy to be 0.025J
A projectile with mass .065 kg is fired at and embeds itself in a pendulum with mass .19 kg. What is the percent kinetic energy loss during the perfectly inelastic collision
A horizontal block-spring system with the block on a frictionless surface has total mechanical energy E = 55.1 J, What is the kinetic energy of the system at the equilibrium point
a 3,000-kg vehicle collides with a 1,000-kg stationary vehicle. What was the speed of the 3,000-kg vehicle
A 41.9 g object is attached to a horizontal spring with a spring constant of 10.8 N/m, What is the velocity of the object when it is halfway to the equilibrium position
What is the magnitude of the average force required to stop 1200kg car in 9.0 if the car is traveling at 65km/h
A 2070 kg railroad flatcar, which can move with negligible friction, is motionless next to a platform. What is the speed of the flatcar if he then stands on it
One particle has a mass of 4.42 x 10-3 kg and a charge of +7.35 %u03BCC. A second particle has a mass of 8.69 x 10-3 kg and the same charge. Find the initial separation between the particles
A 0.600 kg ball falls directly down onto concrete, hitting it with a speed of 13.5 m/s and rebounding directly upward with a speed of 3.00 m/s. What is the impulse on the concrete