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Energy Pretest A 1300-kg car drives up a hill that is 17.0 m high. During the drive, two nonconservative forces do work on the car: the force of friction, and the force generated by the car's engine. The work done by friction is -3.31 x 105 J; the work done by the engine is +6.34 x 105 J.
Find the change in the car's kinetic energy from the bottom of the hill to the top of the hill.
An airplane is flying over the countryside with a velocity of 85.0 m/s at an angle of 19.5o with respect to the horizontal. How far from the person will the crate land
The maximum wavelength an electromagnetic wave can have and still eject an electron from a copper surface is 264 nm
Select all true statements about electromagnetic waves.
c denotes partial differentiation wrt coordinate xc and c denotes covariant differentiation wrt coordinate xc .1.
Just as you are about to step into a nice hot bath, a small earthquake rattles your bathroom. What is the speed of the waves that are reflecting back and forth inside the tub to create the standing wave
A cub scout makes a simple microscope by placing two converging lenses of +18.0 D at opposite ends of a 27.9-cm-long tube. What is the tube length of the microscope
The solid curve below shows the trigonometric function f(x). It has the form f(x) = Acos(x). Also shown as dotted curve is the function cos(x). Determine the values of A and enter it below. Note the tick marks at x = ±Π and ±2Π.
The Concorde travelled 8000 km among two places in North America and Europe at an average speed of 375 m/s. What is the total dissimilarity in time between two similar atomic clocks, one on the airplane and one at rest on Earth through a one-way trip..
An object with a height of 2.44 cm is placed 35.3mm to the left of a lens with a focal length of 33.2 mm. Where is the image located
An electron is accelerated horizontally from rest in a television picture tube by a potential difference of 5500V. It then passes between two horizontal plates 6.5cm long and 1.3 cm apart that have a potential difference of 250V. At what angle wil..
Light shines through a single slit whose width is 6.80 x 10-4 meter. A diffraction pattern is formed on a flat screen located 2.6 meter away. Evaluate what is the wavelength of the light
A police radar's effective range is 0.80 km, and your radar detector's range is 2.1 km. At what rate must you negatively accelerate to avoid a speeding ticket
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