How far is the hometown from school if driving steadily
You are driving home from school steadily at 100 km/h for 150 km. It then begins to rain and you slow to 61 km/h. You arrive home after driving 3 hours and 40 minutes. How far is your hometown from school?
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Two children ride on the merry-go-round. Child 1 is 2.0 {rm m} from the axis of rotation, and child 2 is 1.5 {rm m} from the axis. If the merry-go-round completes one revolution every 5.2 s, find the angular speed and the linear speed of each chil
During a collision, an 84 kilogram driver of a car moving at 24 meters per second is brought to rest by an inflating air bag in 1.2 seconds. What is the approximate magnitude of the force exerted on the driver by the air bag?
A cardinal (Richmondena cardinalis) of mass 3.90×10-2 and a baseball of mass 0.144 have the same kinetic energy. What is the ratio of the cardinal's magnitude of momentum to the magnitude of the baseball's momentum?
Two identical point charges (q = +6.90 x 10-6 C) are fixed at opposite corners of a square whose sides have a length of 0.450 m. A test charge (q0 = -3.20 x 10-8 C), with a mass of 5.20 x 10-8 kg, is released from rest at one of the corners of the
Assume that the origin goes through the A particle. The three masses are connected by massless, rigid rods of 50 cm length (center-to-center). If the mass of A is 250 g, the mass of B is 150 g and the mass of C is 100 g, what is the x-coordinate (
The water exerts a force of 240 N east. If the boat (including crew) has a mass of 320 kg, what are the magnitude and direction of its acceleration?
The object to be photographed is 3.89 m in front of the objective lens. How far behind the concave lens should the film be placed?
One travels at 4.01 cm/s and the other at 3.99999 cm/s. When the first one crosses the finish line, how far behind is the second one?
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