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Estimate the volume of your body. (Consider your body to be a cylinder having a radius of about 6 inches (or 0.15 m) and a height of about 1.5 meters
Assume this asteroid has the shape of a sphere. A rock sitting on the surface of the asteroid has a weight of 100 Newtons. How is the mass of the rock affected by its change in position
The magnitude of the field produced by a point charge of +5.4 micro-coulombs has a magnitude of 5.9 x 106 N/C, How far is the point from the charge
A defibrillator consists of a 17.0-µF capacitor that is charged to 8.5 kV. What is the average power delivered to the tissues
Two atmospheric sound sources A and B emit isotropically at constant power. find the ratio of the larger power to the smaller power
If an organ pipe, 2 ft long and with one end closed and one end open, how long is the second organ pipe
When you see a traffic light turn red, you apply the breaks until you come to a stop. what was your average velocity during breaking
At a point P, the path lengths from two point sound wave sources have a difference of 1/4 l. What is the phase difference between the sound waves at poiunt P
The potential energy of a particle moving in the x-y plane is U=a/(x^2+y^2)^1/2, where a is a constant. What is the force on the particle
A boat is heading upstream when a float is dropped overboard and carried downstream. What is the boats speed in still water
A boat must cross a 260-m-wide river and arrive at a point 110 m upstream from where it starts, What is the speed of the boat in still water
In April 1974, Steve Prefontaine completed a 10000m race in a time of 1663.6 s. Suppose \"Pre\" was at the 8550m mark at a time of 1500 s. calculate the acceleration that he had
A ferry transports tourists among three islands. It sails from the first island to the second island, 5.41 km away, Calculate the distance between the first and third islands
A small mail bag is released from a helicopter that is descending steadily at 2.83 m/s. After 2.43 s, what is the speed of the mail- bag? How far is the mailbag below the helicopter at 2.43 s
a jet engine suspended beneath the wing of an airplane. The weight of the engine is 11800 N, find the magnitude of the torque due to the weight
Two wheels have the same mass and radius of 4.8 kg and 0.50 m, respectively. Find the net external torque that acts on each wheel
In this problem, you will apply kinematic equations to a jumping flea. Take the magnitude of free-fall acceleration to be 9.80m/s^2. What is its initial velocity as it leaves the ground
A wrecking ball (weight = 5680 N) is supported by a boom, which may be assumed to be uniform and has a weight of 2520 N. compute the tension in the support cable
A 11.1-kg object hangs in equilibrium at the end of a rope (taken as massless) while a wind pushes the object with a 60.3-N horizontal force. find the rope\'s angle from the vertical
A capacitor is consists of two short sections of parallel wires in air. One wire is found to be of the voltage of 58 V, What is the capacitance of the two wires
Amtrak's 20th-Century Limited is en route from Chicago to New York at 120km/h, How far was the train from the cow when the engineer first applied the brakes
A hockey puck moving at 33m/s slams through a wall of snow 38cm thick. It emerges moving at 19m/s. find the thickness of a snow wall
In a serve, a tennis player hits the ball horizontally. Neglect the effects of air resistance and the diameter of the ball. Where will the ball land if it just clears the net
Jack and John are standing 6m apart from each other playing soccer. Jack kicks the ball to John and John kicks it back immediately. find the speed of the ball when it's kicked back to Jack
A small droplet of oil with mass of 4.81×10-15 kg is held suspended in a region of uniform electric field directed upward with a magnitude of 7025 N/C