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Sam, whose mass is 77kg , takes off across level snow on his jet-powered skis. The skis have a thrust of 150N and a coefficient of kinetic friction on snow of 0.1. Unfortunately, the skis run out of fuel after only 9.0s .
A) What is Sam's top speed?
B) How far has Sam traveled when he finally coasts to a stop?
What vertical height does block reach above its starting point. What speed does it have when it slides back down to its starting point.
You hold a ruler that has a charge on its tip 2 cm above a small piece of tissue paper to see if it can be picked up, What is the minimum charge required to pick up the tissue paper
A 0.33-m-long violin string has a mass of 0.89 g. The peg exerts a 45 N force on it. Determine the lowest frequency sound produced by the vibrating sting
A 55 kg person is riding in a hot air balloon and scale shows this person's weight too be 549N. the acceleration of gravity at the location of the balloon is known to be 9.79 m/s/s.
An LR circuit is hooked up to a battery as shown in the figure, with the switch initially open. The resistance in the circuit is R=120Ω, the inductance is L=4.10H, and the battery maintains a voltage of E=49V. At time t=0 the switch is closed.
A mass of gas occupies a volume of 4.3 L at a pressure of 1.8 atm and a temperature of 345 K. Determine the final pressure
A hydrogen atom in its first excited state absorbs a photon with an energy of 59.0 eV, What is the kinetic energy of the ejected electron
The human body can survive a negative acceleration trauma incident (sudden stop) if the magnitude of acceleration is less than 250 m/s^2.
Two charge distributions, Q1=1.4X10^-10C and Q2=3.5X10^-10, WHat is the force between them and the electric field between them?
A geologist searching for oil finds that the gravity at a certain location is 8 parts in 107 smaller than average. Estimate the size of the deposit
In a classical model of the hydrogen atom, the electron orbits a stationary proton in a circular orbit
You send a beam of light from a material with index of refraction 1.19 into an unkown material. In order to help identify this material, What is the index of refraction of the unknown material
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