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Q. A worker pushes horizontally on a large crate with a force of 297 N, and the crate is moved 4.8 m. How much work was done?
Q. An object weighing 346 N in air is immersed in water after being tied to a string connected to a balance. The scale now reads 310 N. Immersed in oil, the object weighs 325 N. Calculate the density of the object.
A ball with a horizontal speed of 1.25m/s rolls off a bench 1.00m/s above the floor. how long does it take to reach the floor.How far from a point on the floor directly below the edge of the bench would the ball land.
What is momentum of the block
A speed skater moving across frictionless ice at 8.4 m/ s hits a 5.2 m -wide patch of rough ice. She slows steadily, after that continues on at 6.3 m/s.
A 7 kg bowling ball moves at 2.15 m/s. How fast should a 2.40 g Ping-Pong ball move so that the two balls have the same kinetic energy.
Find the distance point P on the tip of the blade has traveled in 3 sec. Also, find the magnitude of the acceleration of point P when t = 3 sec.
Differentiate between the following three types of plain carbon steels.
What is phase change as the light is reflected from the top
Two charged bodies exert a force of 0.790N on each other. If they are moved so that they are one-fourth as far apart, what force is exerted.
Ice at -13.7 °C and steam at 114 °C are brought together at atmospheric pressure in a perfectly insulated container. After thermal equilibrium is reached, the liquid phase at 43.3 °C is present. Ignoring container and equilibrium vapour pressure of t..
A frictionless pulley has the shape of a uniform solid disk of mass 4.00 kg and radius 28.0cm. A 3.60 kg stone is attached to a very light wire that is wrapped around the rim of the pulley, and the stone is released from rest. As it falls down, the w..
If an astronaut can throw a certain wrench 14 {rm m} vertically upward on earth, how high could he throw it on our moon if he gives it the similar starting speed in both places.
What is the net force exerted by these two charges on the third charge = 46.5 placed between and at = -1.235 ? Your answer may be positive or negative, depending on direction of the force.
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