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Question: A baseball player holds a 36-oz bat (weight ? 10.0 N) with one hand at the point O (Fig. P12.1). The bat is in equilibrium. The weight of the bat acts along a line 60.0 cm to the right of O. Determine the force and the torque exerted by the player on the bat around an axis through O.
A 8.0 kilogram object undergoes an acceleration of 2.7 m/s2. If this same force is applied to a 16.0 kg object, determine what acceleration is produced
how far is this point horizontally from the end of the ramp. A skateboarder shoots off a ramp with a velocity of 6.2 m/s, directed at an angle of 61° above horizontal. The end of the ramp is 1.5 m above the ground.
The side view of a pry bar is shown in Figure. The cross section of the bar is rectangular with thickriess = in and width (perpendicular to the plane of paper).
Calculate the change in length (ΔL) of the tube. Remember that a negative change in length means that the length decreases, and a positive change in length means that the length increases.
A 40 cm telescope has a focal ratio of f/10. a) What is the light-gathering power of this telescope relative to that of a single human eye?
What was the change in the potential energy of this charge?
A barbell with two equal masses 1.0 kg on either end rotates about an axis perpendicular to the bar with an angular velocity of 1.13 rad/s.
A heart pacemaker fires 79 times a minute, each time a 26.0-nF capacitor is charged (by a battery in series with a resistor) to 0.632 of its full voltage. Determine what is the value of the resistance
A soccer player kicks a rock horizontally off a 36.9 m high cliff into a pool of water. If the playerhears the sound of the splash 2.93 slater, what was the initial speed given to the rock? Assume thespeed of sound in air to be 343 m/s.
A block of wood is 8.00cm long, 20.0cm high, and 0.10m wide. its mass is 1.00kg. What is its density in g/cm3?
When the electric power was turned off, the electric motor originally running at 1800 rpm comes to rest in 15.0 s. Find out the angular acceleration, the angular velocity at the end of 5.0 s, and the total angle turned through in 15.0 s.
According to the shop manual, when drilling a 11.8-mm-diameter hole in wood, plastic, or aluminum, a drill should have a speed of 1200 rev/min.
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