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A 22 kg block of iron drops out of the back of a pickup truck traveling at 55 mi/h. The block slides on the road for 150 m before coming to rest. By roughly how much has the temperature of the iron increased? (Assume that it gets about one-half of the thermal energy produced by its interaction with the road)
what is the mass of helium in the balloon.
An electron moves in a circular path perpendicular to a constant magnetic field with a magnitude of 1.00 mT. Determine the radius of the circular path
A 2.8{\rm kg} block of wood sits on a table. A 3.0 {\rm g} bullet, fired horizontally at a speed of 370{\rm m/s} , What is the speed of the block immediately after the bullet exits
A farsighted person can read printing as close as 25.0 cm when she wears contacts that have a focal length of 44.6 cm. What is the maximum angular magnification that the magnifying glass can provide for her
a ball is tossed directly upward at an initial speed of 5.7m/s and is caught when it falls back down to the throwers hand, how much total time is the ball airborne
A block of weight 43.6 N is hanging from a rope. The tension from the rope is pulling upward on the block. The block is accelerating upward at a rate of 1.22 m/s^2. What is the magnitude of the tension in the rope?
The box of a well-known breakfast cereal states that one ounce of the cereal contains 107 Calories (1 food Calorie = 4186 J). what is the weight of the heaviest barbell
Defend or refute the statements based upon your reading or any other outside sources you can quote. All statements must be backed up with citable references that are to be included in your discussion.
Velocity and time for the moving particle.
An ideal gas is expanded isothermally from 20L to 30L. During thismethod , 6J of energy is expended by the external mechanism that expanded the gas. Which of the statements is correct.
Consider the ballistics pendulum experiment. If M=1kg and m=0.1kg, and the velocity of the bob-ball system right after the collision is Vf=2m/s, what was the initial velocity of the ball before it hit the bob
A compressed spring shoots the block radically outward along a frictionless groove in the surface of the turntable. Illustrate what is the turntable's rotation angular velocity when the block reaches the outer edge?
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