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Determine the mechanical energy for a 5.0 kg stone perched near the edge of a cliff 25.0 m high. Use the base of the cliff as the reference level.
Compare the kinetic energies for a biker and bike (with a combined mass of 80.0 kg) traveling at 3.00 m/s and the same biker and bike traveling twice as fast.
Which has the greater gravitational potential energy - a flower pot-Earth system with a 550 g flower pot sitting on a 1.2 m high shelf or a flower pot-Earth system with a 350 g flower pot sitting on a 1.8 m high shelf?
During a contest that involved throwing a 7.0 kg bowling ball straight up in the air, one contestant exerted a force of 810 N on the ball. If the force was exerted through a distance of 2.0 m, how high did the ball go from the point of release?
A 50.0 kg girl jumps onto a stationary 2.4 kg skateboard at 4.1 m/s. Determine the fraction of the original kinetic energy that was transformed to other forms due to the inelastic nature of the collision.
Suppose that a block is pulled at a constant velocity with a constant force in the presence of sliding friction. What is the net force on the block while it is moving at a constant velocity from point a to point b
Two coils are close to each other. The first coil carries a time-varying current given by I(t) = (5.80 A) e-0.0250tsin(377 t). What is the mutual inductance of the coils
A swing is made from a rope that will tolerate a maximum tension of8.00*102 N without breaking. Initially, the swing hangsvertically. The swing is then pulled back at an angle of60.0o with respect to the vertical and released fromrest. What is the ..
Write down an equation in terms of the 3 unknowns for the students canoeing upstream. This is of the form, velocity is equal to distance over time - Sketch a plot of velocity versus time.
A motorist drives south at 27.0 m/s for 3.90 min, then turns west and travels at 25.0 m/s for 2.40 min, and finally travels northwest at 40.0 m/s for 1.00 min. For this 6.40 min trip, find the values.
A storage tank 25m high is filled with gasoline. Find the measure pressure at the bottom of the tank.
a) Determine the magnitude and direction of the electrostatic force acting on particle A in the figure given below due to particles B and C . The values of the charge on these particles are indicated in the figure.
A cannon fires a cannon ball eastwards at a speed of 20 m/s and an angle of 45o above the horizontal. If the cart is to be at the same position as the cannon ball when the cannon lands, then what is the acceleration of the cart?
A microscope has an objective lens of focal length 6.05 mm. The objective forms an image 16.5 cm from the lens. The focal length of the eyepiece is 2.75 cm. What is the angular magnification
Water is circulating through a closed system of pipes in a two floor apartment. On the first floor, the water has a gauge pressure of 3.30 × 105 Pa and a speed of 2.30 m/s. However, on the second floor, which is 3.60 m higher, the speed of the water ..
State the octet rule. What common element is an exception to this rule, and why? In a Lewis symbol, what determines the number of dots used? What is the difference between a Lewis symbol and a Lewis structure?
An object with a mass of m = 4.6 kg is attached to the free end of a light string wrapped around a reel of radius R = 0.265 m, determine the velocity when it hits the floor
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