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A railroad car of mass M= 2000kg and speed(initial velocity) Vo= 8.50 m/s collides and couples to another car of equal mass and initially at rest.
What is the final speed of the two coupled railroad cars?
How much kinetic energy is lost during the collision?
A crane which is effectively fixed to ground lifts a box of mass m with constant speed. The arm of the crane is supported at its base by a friction-free pivot. Determine the tension in the supporting cable
A 14,240N car is traveling along a highway at 95.0 kn/hr. If the driver immediately applies his breaks, what average force acted upon the car
You are traveling in a convertible with the top down. How far has the car moved when you get a chance to catch the tomato
Consider a system composed of a mixture of 2.50kg of ice and 50 gr of liquid water and a small separate container of finely powdered salt. This physical system is contained in a fully insulated container that prevent.
A home run is hit in such a way that the baseball just clears a wall 10 m high, located 124 m from home plate, Find the time it takes the ball to reach the wall
Two crewmen pull a boat through a lock. One crewman pulls with a force of F1 = 130 N at an angle of = 37° relative to the forward direction of the raft.
A 100-tesla magnetic field exerts a force of 20N on a 1-meter length of wire with a cross-sectional area of 0.001m^2. Calculate the current induced in the wire
Under some circumstances, a star can collapse into an extremely dense object made mostly of neutrons and called a neutron star. find the angular speed of the neutron star
A rocket is launched at an angle of 56.0° above the horizontal with the initial speed of 101 m/s. The rocket moves for 3.00 s along its initial line of motion with an acceleration of 28.0 m/s2. At this time, its engines fail and the rocket proceeds..
What is the angular separation of two spectral lines of wavelengths 446 nm and 398 nm formed in order m=2 with a 360 line/mm grating
A container of hot water at 50 degrees cools to 49 degrees in how many seconds when it is placed in a room that is t 20 degrees. use newton's law of cooling to find the time it will take for the container to cool from 50 degrees to 49 degrees.
Questions on blackbody, Infra-Red Detectors & Optic Lens and Digital Image.
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