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The volume of 1 mol of a monoatomic gas is increased from 4 L to 5 L at constant pressure. The initial temperature of the gas is 19 deg C. How much heat must be supplied to the gas.
A satellite is in a circular orbit about the earth (ME = 5.98 1024 kg). The period of the satellite is 2.70 104 s. What is the speed at which the satellite travels
An object is made of glass and has the shape of a cube 0.12 m on a side, according to an observer at rest relative to it. However, an observer moving at high speed parallel to one of the object's edges and knowing that the object's mass is 2.8 kg ..
A ceiling fan with 89 diameter blades is turning at 65. Presume the fan coasts to a stop 30 after being turned off. Throughout how many revolutions does the fan turn while stopping.
dry air had a co2 mole fraction of 0.00038 in 2007 compared with 0.00032 in 1965. calculate the total mass of co2 that
The emissivity of the human skin is 97.0 percent. Use 35.0 °C for the skin temperature and approximate the human body by a rectangular block with a height of 1.61 m, Calculate the power emitted by the human body
A harvest mouse can detect sounds as quiet as -10 . Suppose you are sitting in a field on a very quiet day while a harvest mouse sits nearby at the entrance to its nest. A very gentle breeze causes a leaf 1.8 from your head to rustle, generating a..
A vertical solid steel post of diameter d= 30 and length L= 3.00 is required to support a load of mass m= 7700 . You can ignore the weight of the post. What is the change in the post's length when the load is applied
Given two masses, m1 = 18 kg and m2 =12 kg, m1 is moving with avelocity v1 colliding with m2, which is suspended by a string of length 7 m. The two masses are stuck together as the result of thecollision. The compound system swings to the right, p..
find the magnetic field at the center of a set of helmholtz coils each with radius r0.1m and each carrying a total
A hydrogen atom is in its ground state when its electron absorbs a 48 keV photon. What's the energy of the resulting free electron
Two circular coils of current-carrying wire have the same magnetic moment. The first coil has a radius of 0.094 m, has 134 turns, and carries a current of 3.8 A
A copper block rests 25.5cm from the center of a steel turntable. The coefficient of static friction between block and surface is 0.52. The turntable starts from rest and rotates with a constant angular acceleration of 0.475 rad/s2. After what tim..
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