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Q. An unmarked police car travelling a constant 85 km/h is passed by a speeder travelling 145km/h. Precisely 1s after the speeder passes, police officer steps on the accelerator; if the police car's acceleration is 1.90 m/s^2, how much time passes before the police car overtakes the speeder after speeder passes (assumed moving at constant speed)?
Q. When you go out to your car one cold winter morning you discover a 0.70 thick layer of ice on the windshield, which has an area of 1.6. If the temperature of the ice is -2, and its density is 917, find out the heat required to melt all the ice.
An object is placed two focal lengths from a diverging lens. What is the magnification and location of the image.
A fuel leak is discovered at this point, and crew calculates that the plane can safely fly no more than 170 km before an emergency landing should be attempted. The only appropriate location for an emergency landing is 100 km north of their current po..
A solid cylinder of radius 0.35 m is released from rest from a height of 1.8 m & rolls down the incline as shown. Find the angular speed of the cylinder when it reaches the horizontal surface?
find the volume of the irregularly shaped object. What is sigma_inner, the surface charge density (charge per unit area) on the inner surface of the conducting shell.
The magnitude FN of the normal force that each side of the tread channel exerts on the stone is 1.8 N. Suppose that only static friction supplies the centripetal force, & find the radius r of the tyre.
A box is sliding down an incline tilted at an angle 14.0° above horizontal. The box is sliding down the incline at a speed of 1.70 m/s. The coefficient of kinetic friction between box and incline is 0.380. How far does the box slide down the incli..
A long wire lying along the x-axis carries a current of 2.8 A in the +x direction. There is a uniform magnetic field present, given by B=0.003i + 0.004j + 0.002k, where i, j, k are the unit vectors along the cartesian coordinate axes') in units of..
What is the Bens kinetic energy
What are magnitude and direction of net electrostatic force
A 53 kg skier skis directly down a frictionless slope angled at 12° to horizontal. Choose the positive direction of the x axis to be downhill along the slope.
What is tension in each string
The density of free electrons in gold is 5.90 x 10^28 m-3. The resistivity of gold is 2.44 x 10-8 at a temperature of and the temperature coefficient of resistivity is 0.004 ()-1. A gold wire, 1.30mm in diameter and 27cm long, carries a current of..
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