Study Help
Browse Study Help
What is a physical change?
Price: $1.59
Nuclear Physics
What is the Moths scale of hardness?
Price: $1.59
Nuclear Physics
Fictitious Force on a Merry-Go-Round A child of mass 19.0 kg is sitting on the edge of a merry-go-round that has a diameter of 5.20 m. The merry-go-round makes one revolution every 3.20 s. What is the centrifugal force on the child?
Price: $1.59
Nuclear Physics
How big is the Fictitious Force? A person with a mass of 64.0 kg is in a subway car that at that instant is accelerating at 1.95 m/s2 in the positive x-direction. Is there a fictitious force from his reference frame, and if so what is its value?
Price: $1.59
Nuclear Physics
Friction on a Banked curve A car is travelling on a curve of radius r banked at an angle u. The coefficient of static friction between the car and the road is μ_s. Derive an expression for the maximum speed that the car can travel without slipping. Derive an expression for the normal force.
Price: $1.59
Nuclear Physics
Frictionless Banked Racetrack A race car is on a very slippery circular track of radius 195 m. The racetrack is banked at an angle of 27.0° with respect to the horizontal. Find the speed at which the race car will not slide up or down the track, assuming that friction with the track surface is negligible.
Price: $1.59
Nuclear Physics
Staying in the Loop You swing a 315 g metal ball at the end of a 1.25 m long string in a vertical circle. The mass has a speed of 17.0 m/s when at the lowest point in the circle. (a) Find the tension in the string when the mass is at its lowest point. (b) What is the minimum speed for the mass when it is at the top of the loop for the rope to stay taut?
Price: $1.59
Nuclear Physics
Traffic circle speed Limit A traffic circle has a radius of 42.0 m. The traffic circle is not banked, and it is to be designed for a minimum coefficient of static friction between the tires and the road of 0.270. Find the maximum speed that a car can travel on the traffic circle without sliding.
Price: $1.59
Nuclear Physics
