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Two kids are on a merry-go-round. The boy, located 3m from the center of the merry-go-round, is feeling a centripetal acceleration of 2 m/s2. The girl 6m from the center. What is her centripetal acceleration? (Hint: both kids complete a cycle in the same amount of time).
An automobile club plans to race a 780 kg car at the local racetrack. The car needs to be able to travel around several 170 m radius curves at 85 km/h. What must the banking angle of the curves be so that the force of the pavement on the tires of the..
A large boat with a weight of 70000 tons moves at constant speed due west. What is the net force on the boat
A person who weighs 680 N is riding a 98-N mountain bike. Suppose the entire weight of the rider and bike is supported equally by the two tires. If the gauge pressure in each tire is 6.45 105 Pa, what is the area of contact between each tire and the ..
The index of refraction for a diamond for red light of wavelength 654 nm is 2.35, Find the angle of refraction for red light
An 900 kg purple pickup truck tows a small 200 kg trailer using a relatively lightweight tow rope as shown in the animation. What is magnitude of the net force on the trailer
Find the average force of the water on the diver. The swimmer comes to a stop 4 m below the surface. Find the average net force acting on the diver as coming to a stop in the water.
A ladder with a length of 5.0 m and a weight of 450 N is placed so its base is on the ground 4.0 m from a vertical frictionless wall, Find the magnitude of the upward normal force applied by the ground on the ladder
On its highest power setting, a microwave oven increases the temperature of 0.390 kg of spaghetti by 45.0°C in 150 s. What is its peak magnetic field strength
A projectile is launched at ground level with an initial speed of 50.0 m/s at an angle of 30.0º above the horizontal. It strikes a target above the ground 3.00 seconds later. What are the x and y distances from where the projectile was launched to..
A projectile is launched at an angle of 60o with respect to the horizontal from the edge of a cliff which is 100 m high. Its initial speed is 30 m/s. find the displacement vector for the motion of the projectile
How many electrons would have to be placed on the sphere to produce an electric field of magnitude 1.41 105 N/C at a point 8.60 cm from the center of the sphere
A plane first moves from the origin to point A located at 170 km in direction of 30 degree north of east after that it flies 150 km 20 degree west of north to point B finally it flies 195 km due west to point C. find the location of C from origin.
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