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A car of mass 409 kg travels around a flat, circular race track of radius 156m. The coefficient of static friction between the wheels and track is 0.207. the acceleration of gravity is 9.9 m/s squared. What is the maximum speed v that the car can go without flying off the track. Answer in units m/s.
The same car now travels on a straight track and goes over a hill with radius of 110m at the top. What is the maximum speed that the car can go over the hill without leaving the road. Answer in units of m/s.
A 60kg bicyclist rides his 7.8kg bicycle with a speed of 16m/s. How much work must be done by the brakes to bring the bike and rider to a stop.
In calculating the drag force on a wing, we might consider it as two flat plates for the upper and lower surfaces plus a half-cylinder on the leading edge.
A 4.0 kg ball is traveling at 3.0 m/s and strkes a wall. The 4.0 kg ball bounces off the wall with a velocity of 4.0 m/s. determine the average force on the ball
Can you please explain to me how to find out what the graph of the angular velocity vs time graph and the torque vs time graph given the angular acceleration vs time graph?
One piece of 50 g ice at 0C is added to m grams of water at 25C. The system is insulated from outside and the exchange of heat is limited to ice and water only. find the total change in entropy
An electric motor rotating a workshop grinding wheel at a rate of 8.20 101 rev/min is switched off. Through how many radians has the wheel turned during the interval found in (a)
Two lenses, separated by a distance of 22.1 cm, are used in combination. The first lens has a focal length of +26.0 cm; the second has a focal length of -15.0 cm. What is the final image distances relative to the second lens
a gas is compressed from 600 cm3 to 200 cm3 at a constant pressure of 400 kpa. at the same time 100 j of heat energy is
662 keV photons are emitted as a result of the decay of 137Cs. These photons undergo Compton scattering. What is the minimum energy of a Compton scattered photon? What is the maximum Compton electron energy?
A microwave transmitter emits electromagneticwaves of a single wavelength. Calculate the maximum magnetic field at this distance
Work and Power problem in physics A bacterium moves through water at a constant velocity. The bacterium uses it's flagellum to push on the water behind it to help it overcome the drag force of the water opposing it's motion, what is the power outp..
An unstable high-energy particle is created in the laboratory, and it moves at a speed of 0.984c. Determine what is the proper lifetime
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