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A block of mass 2.50 kg is pushed 2.00 m along a frictionless horizontal table by a constant 16.0 N force directed 25.0° below the horizontal.
(a) Determine the work done by the applied force.
(b) Determine the work done by the normal force exerted by the table.
(c) Determine the work done by the force of gravity.
(d) Determine the work done by the net force on the block.
If the distance between two slits is 0.031 mm and the distance to a screen is 2.50 m, find the spacing between the first- and second-order bright fringes for yellow light of 500 nm wavelength.
A ball is thrown from the top of a building upward at an angle of 39degrees to the horizontal and with an initial speed of 24m/s. The ball is thrown at a height of 57 m above the ground and hits the ground 98.55 m from the base of the building. Wh..
Describe an experiment to measure the molecular weight Mw and the second viral coefficient B of a macromolecules in solution using osmotic pressur. Show how you would plot the experimental data.
A chair of weight 135 lies atop a horizontal floor; the floor is not frictionless. You push on the chair with a force of = 38 directed at an angle of 42 below the horizontal and the chair slides along the floor.
A 25000 kg rocket ship accelerates upwards by reason of constant 1.25MH of thrust from its engine. A simple pendulum on the ship is observed to complete 100 full swings in 75 seconds. What is the length of string.
what will be the height h of the highest point reached by the skateboarder on the right side of the ramp.
The leg and cast weigh 177N (w1). Find out the weight w2 and the angle α required so that no force is exerted on the hip joint by the leg plus cast.
A skateboarder shoots off a ramp with a velocity of 6.80m/s, directed at an angle of 59° above the horizontal. The end of the ramp is 1.10 m above the ground.
An occupant of a car has a chance of surviving a crash if the deceleration all through the crash is not more than 30.00 g. Approximation the force on a 72 kg person decelerating at this rate.
What is the kinetic energy of α particle while it reaches the other plate? The distance between the plates is 33 cm.
A pipe with a 2m diameter carries water having a velocity of 4 m/s. What is the mass flow rate of the water in kg/s at the following temperatures.
The coefficient of static friction between the ladder and the ground is 0.55, and the ladder makes a 50.0° angle with the ground. Explain how far up the ladder can an 870 N person climb before the ladder begins to slip?
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