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When a 290 g piece of iron at 182°C is placed in a 100 g aluminum calorimeter cup containing 250 g of glycerin at 12°C, the final temperature is observed to be 40°C. What is the specific heat of glycerin?
2 crewmen pull a raft, 1 crewman pulls with a force of 130 newtons at 34 degreees relative to the forward position on the raft. the 2nd crewman on the opposite side pulls at 45 degrees. Illustrate what force should the 2nd crewman pull so that the..
A 22.5 g bullet is fired from a rifle. It takes 2.60 10-3 s for the bullet to travel the length of the barrel, find the average net force exerted on the bullet
A flask is filled with 1.51 L (L = liter) of a liquid at 96.8 °C. When the liquid is cooled to 17.5 °C, What is the coefficient of volume expansion of the liquid
What is its velocity when it reaches the maximum height.
Tim and Rick both can run at a constant speed Vr and walk at the constant speed Vw, (Vw
A battery's ideal voltage is 12.0 V; its internal resistance is 1.46 ohms. If the battery is attached in series to a 21.5-ohms resistor, what is the actual voltage supplied by the battery?
A large gear is made by starting with a solid metal disk of mass 5 kg and radius 25 cm. Determine the moment of inertia for the gear spinning
Two shuffleboard disks of equal mass, one orange and the other green, are involved in a perfectly elastic glancing collision. Determine the final speed of the orange disk
Visible light passes through a diffraction grating that has 900 slits per centimeter, What is the difference between these wavelengths
A trapeze artist swings in simple harmonic motion with a period of 4.2s. The acceleration of gravity is 9.81m/s2. Compute the length of the cables supporting the trapeze.
A typical compact disc stores information in tiny pits on the disc's surface. What's the frequency of electromagnetic waves that have a wavelength equal to the typical CD pit size
A wooden block with mass 1.75kg is placed against a compressed spring at the bottom of a slope inclined at an angle of 33.0?, Calculate the amount of potential energy that was initially stored in the spring
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