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A car traveling 80 km/h is 70 m behind a truck traveling 75 km/h. How long will it take the car to reach the truck? I have utilized a similar solution from the book (Physics by Giancoli, 6th edition) as a reference however doesn’t understand how they came up with the answer after finding the relative speed.
When 130 V is applied across a wire that is 7.5 m long, the magnitude of the current density is 16,486 A/m2. Find the resistivity of the wire in ohm-meters
A uniform electric field has magnitude E = 270 N/C and is directed to the right. A particle with charge +4.3 nC moves along the straight line from a to b that is 0.25m in length, What is the work done on the particle by the electric field
A cop car drives at 30m/s toward the scene of a crime, with its siren sounding (f = 2125 Hz.) Estimate the frequency heard by people at the crime scene as the siren approaches and the frequency heard as the siren moves away from people.
A 18.0 kg block is dragged over a rough, horizontal surface by a constant force of 77.6 N acting at an angle of 35? above the horizontal. The block is displaced 10.8 m, and the coefficient of kinetic friction is 0.149.
a rock is thrown straight up with intial velocity of 15.5m/s. what maximum height will the rock reach before starting to fall downward
question an emf of 10 v is connected to a series rc circuit consisting of a resistor of 2.0 x 106nbspomega and a
A car is traveling at 61.6 km/hr on a flat, concrete highway. If the brakes are applied such that skidding occurs, the kinetic coefficient of friction between the road and tires is 0.802. If anti-lock brakes are properly applied then no skidding o..
A 1.9kg block slides along a frictionless surface at 1.7m/s . A second block, sliding at a faster 4.9m/s , What was the mass of the second block
A grinding wheel is a uniform cylinder with a radius of 8.5 cm and a mass of .580 kg. Calculate its moment of inertia about its center
the 1994 winter olympics included the aerials competition in skiing. in this event skiers speed down a ramp that slopes
A 2.35kg ball moving at 4.20 m/s to the right hits a 3.45kg ball head on that is travelling at 3.50 m/s to the left. What is the velocity of the first ball after the perfectly elastic collision
The first controlled, sustained flight in a heavier-than-air craft was made by Orville Wright on December 17, 1903. The plane took off at the end of a rail that was 60 feet long, and landed 12 seconds later, 180 feet away from the beginning of the..
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