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A river flows southeast at 10 km/hr and a boat flows upon it with its bow pointed in the direction of travel. A man walks upon the deck at 2 km/hr in a direction to the right and perpendicular to the direction of the boat's movement. Find the velocity of the man with respect to the earth.
A projectile is shot directly away from Earth's surface. Neglect the rotation of the Earth. What multiple of Earth's radius RE gives the radial distance (from the Earth's center) the projectile reaches if (a) its initial speed is 0.550 of the escape ..
Calculate the voltage (in volts) needed to cause a current of 0.002 A to flow through a 15,044 ohm resistor.
A baseball outfielder throws a 0.15 kg baseball at a speed of 40 m/s and an initialangle of 30?. What is the kinetic energy when it hits the ground
A person who weighs 656 N is riding a 91-N mountain bike. compute the area of contact between each tire and the ground
a diver running 2.3ms drives out horizontally from the edge of a vertical cliff and 3.1rm s later reaches the water
For tests using a ballistocardiograph, a patient lies on a horizontal platform that is supported on jets of air. determine the recoil velocity
A simple pendulum is made from a 0.51 mlong string and a small ball attached to its free end. The ball ispulled to one side through a small angle and then released fromrest. After the ball is released, how much time elapses before ita ttains its grea..
The spaceship Intergalactica lands on the surface of the uninhabited Pink Planet, find the acceleration due to gravity on the Pink Planet\'s surface by means of a simple pendulum of length 1.06 m
What is the maximum number of lines per centimeter a diffraction grating can have and produce a complete first-order spectrum for visible light
a girl is riding her bicycle. when she gets to a corner, she stops to get a drink from her water bottle. how long does it take for her to catch up with her friend
the fret closest to the bridge on a guitar is d 21.8 cm from the bridge. when the thinnest string is pressed down at
A person who weighs 715 N is riding a 98-N mountain bike. Suppose the entire weight of the rider and bike is supported equally by the two tires. find the area of contact between each tire and the ground
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