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A salesperson claims a 1340 kg car has an average acceleration of 3 m/s2 from a standing start to 100 km/h. What average net force is required to do this?
A submarine dives to a depth of 310 feet in the ocean. What is the gauge pressure at this depth? How many atmospheres is this
A force does +130J of work while it acts on a moving object and its direction is in the same direction as the object's displacement. How much work does this force do as the angle between it and the object's displacement is 56°.
A motorcycle and a police car are moving in the same direction, with the motorcycle in the lead. What frequency does the motorcyclist hear in this case
What is the distance between two converging lenses, each of ofcal length f and used in combination to become a telescope
A laser emits a cylindrical beam of light 2.6 mm in diameter. what is the rms value of the electric field in the laser beam
A policeman uses a radar gun to detect the speed of drivers in a 65 mph (29.06 m/s) zone, What is the driver's speed, Is the driver breaking the speed limit
Three liquids are at temperatures of 5.0°C, 21°C, and 33°C, respectively. Equal masses of the first two liquids are mixed, Find the equilibrium temperature when equal masses of the first and third are mixed
Particle A and particle B are held together with a compressed spring between them. When they are released, the spring pushes them apart, and they then fly off in opposite directions, what are the kinetic energies of each particle
A heat engine is composed of of a monatomic ideal gas which runs in the following cycle: At point A the pressure is 2.6 atm, What is the efficiency of this heat engine
A 20.00kg sled is being pulled across a horzontal surface at a constant velocity. Determine the kinetic frictional force
The coefficient of static friction between m1 and the horizontal surface is 0.60, and the coefficient of kinetic friction is 0.30. what will be the acceleration of the system
A toy train with 1.2kg mass is moving at a stright line platform with the velocity 12m/s. It collides another toy train of 0.9kg mass with velocity of 7m/s. If e = 0.8, what is the velocity of each train after the collision.
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