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The internal energy of a gas is 1000 J. The gas is compressed adiabatically, and its volume decreases by 500 cm3. If the pressure applied on the gas during compression is 6 atm, what is the internal energy of the gas after the adiabatic compression?
Yellow light propagates through vacuum at a speed of 3 x 10^5 km/sec, with a wavelength of 590 nm. What is the frequency in vacuum
You are using a magnifying glass held against your eye to study an insect. The distance between the insect and your eye/magnifying glass is 2.5cm. What is the angular magnification of the magnifying glass?
A particle of ionizing radiation creates 4900 ion pairs in the gas inside a Geiger tube as it passes through. What minimum energy was deposited
The density of air under standard laboratory conditions is 1.29{\rm kg}/{\rm m}^{3} , and about 20.0\% of that air consists of oxygen. Typically, people breathe about .5 L of air per breath.
A student wants to lose some weight. He knows that rigorous aerobic activity uses about 700 kcal/h (2900 kJ/h) and that it takes about 2000 kcal per day (8400 kJ) just to support necessary biological functions, at what rate will this student "burn"..
A uniform rod (L= 3 m) and mass (M = 1 kg) is pivoted about a horizontal frictionless pin through one end. What is the angular speed of the rod when it passes through the vertical position
A 12 kg runaway grocery cart runs into a spring with spring constant 240 N/m and compresses it by 60 cm. What was the speed of the cart just before it hit the spring?
To determine the center of mass of her body, a student lies on aplank of mass m=10 kg. The plank is supported by two scales at itsends. The distance between the scales is 2.5 meters. The left scalereads 339 N and the right reads 171 N.
A bug of mass 2.6 g is sitting at the edge of a CD of radius 6.0 cm. what is the angular momentum of the bug
A rifle with a weight of 25 N fires a 3.0 g bullet with a speed of 240 m/s. find the recoil speed of the man and rifle
A glass flask has a volume of 900 ml at a temperature of 20° C. The flask contains 895 ml of mercury at an equilibrium temperature of 20°C. The temperature is raised until the mercury reaches the 900 ml reference mark. The coefficients of volume expa..
A 25 N force at 60° is required to set a crate into motion on a floor. What is the value of the static friction
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