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A ball is launched horizontally from the edge of a table. It strikes the floor. The horizontal distance between the point on the floor directly beneath the edge of the table and the point on the floor where the ball strikes is 3.23 m. The vertical distance between the floor and the edge of the table is 1.17 m. Find (a) the time interval from when the ball was launched to when the ball struck the floor and (b) the initial speed of the ball. Next, the ball is launched from the floor at an angle 55.7 degrees above the horizontal with the same initial speed. It again strikes the floor. Find (c) the time interval from when the ball was launched to when the ball strikes the floor and (d) the horizontal distance from the point where the ball was launched to the point where the ball strikes the floor.
What is the final temperature of the water and zinc.
A 29 g rifle bullet travelling 270 m/s buries itself in a 3.50 kg pendulum hanging on a 2.6 m long string, which makes pendulum swing upward in an arc. Find out the horizontal component of the pendulum's displacement.
Find the angle with respect to the ground
An airplane must reach a speed of 377mi/h in order to take off. If the runway is 403 m long, what is the minimum value of the acceleration that will allow the airplane to take off successfully.
You want to shoot a 19cm long arrow parallel to this axle and through the wheel without hitting any of spokes. Suppose that the arrow and the spokes are very thin.
hysicists model a magnetic field by assigning to every point in space a vector that represents the strength and direction of the field at that point. Two magnetic fields that exist in the same region of space may be added as vectors at each point to ..
A man weighing 650 and a woman weighing 440 have same momentum. What is the ratio of the man's kinetic energy to that of the woman.
An 9.00 {rm kg} point mass and a 15{rm kg} point mass are held in place 50{rm cm} apart. A particle of mass m is released from a point between the two masses 19{rm cm} from the 9{rm kg} mass along line connecting the two fixed masses.
You hang the rod vertically and attach a 74 kg mass to the bottom, and you observe that the bar becomes 1.74 cm longer. From these measurements, it is possible to conclude the stiffness of one interatomic bond in titanium.
A runner of mass m runs around the edge of the horizontal turntable mounted on a vertical, frictionless axis through its center. The runner's velocity relative to earth has magnitude v.
A train at rest emits a sound at a frequency of 1045 Hz. An observer in a car travels away from the sound source at a speed of 37 m/s. What is the frequency heard by the observer .
An astronaut travels to an alternate universe that contains infinite charged plane and no other charged objects. The astronaut observes that the electric field in this universe has a magnitude of 1.20 N/C everywhere and points directly away from the ..
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