How much more work will be required to stretch spring
If it requires 3.0 {rm J} of work to stretch a particular spring by 1.7 {rm cm} from its equilibrium length, how much more work will be required to stretch it an additional 4.1 {rm cm}?
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Determine the work done on the object by this force as it moves in a straight line from the origin to {vec r} = (12.0{hat i} + 20.0{hat j}){rm m}.
Suppose 1800 J of heat is added to 3.6 mol of argon gas at a constant pressure of 120 kPa. Treat argon as a monatomic ideal gas.
An alert physics student stands beside the tracks as a train rolls slowly past. He notes that the frequency of the train whistle is 443 Hz when the train is approaching him and 441 Hz when the train is receding from him. Using these frequencies, h
If the particle mass is m = 0.01 kg, and it moves starting from rest, what is its speed when it passes the point (x, y) = (20 cm, 50 cm)?
A uniform plank of length 5.5 m and weight 205 N rests horizontally on two supports, with 1.1 m of the plank hanging over the right support (see the drawing). To what distance x can a person who weighs 447 N walk on the overhanging part of the pla
Gas is confined in a tank at a pressure of 1.04×108 Pa and a temperature of 23.3?C. Half of the gas is withdrawn and the temperature is raised to 67.6?C. Find the new pressure in the tank.
In the lungs there are tiny sacs of air, which are called alveoli. An oxygen molecule (mass = 5.30 x 10-26 kg) is trapped within a sac, and the uncertainty in its position is 0.140 mm. What is the minimum uncertainty in the velocity of this oxygen
When at rest, a proton experiences a net electromagnetic force of magnitude 8.5×10-13 pointing in the positive direction. Find the magnitude of the magnetic field.
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