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A diver springs upward with an initial speed of 1.7 m/s from a 3.0-mboard.
a) Find the velocity with which he strikes thewater. [Hint: When the diver reaches the water, his displacement isy = -3.0 m (measured from the board), assuming that thedownward direction is chosen as the negative direction.]
b) What is the highest point he reaches above the water?
How much work is done by an applied force that moves two charges of +8.6 µC that are initially very far apart to a distance of 4.9 cm apart
Lead has a latent heat of fusion of 2.32x10^4 J/kg, a specific heat of 128 J/(kg K), and a melting point of 228°C. determine velocity needed to achieve melting the bullet
Consider a heavy particle of mass m is place at the top (on the outside side, not inside) of a vertical hoop of radius R and mass M. find the location of the hoop center X as a function of angle theta of the falling particle
A 69 kg boy and a 40 kg girl use an elastic rope while engaged in a tug-of-war on an icy, frictionless surface. If the acceleration of the girl toward the boy is 3.0 m/s2, find out the magnitude of the acceleration of the boy toward the girl.
A Carnot-efficiency engine operating between a reservoir of liquid mercury at its melting point and a colder reservoir extracts 15.0 J of heat from the mercury and does 4.0 J of work during each cycle. What is the temperature of the colder reservo..
Blood from an animal is placed in a bottle 1.79 m above a 3.20 cm long needle of inside diameter 0.360 mm, What is the viscosity of this blood
A 209-kg log is pulled up a ramp by means of a rope that isparallel to the surface of the ramp. The ramp is inclined at 31.0° with respect to the horizontal.
What is the change in length of the rope whilst the skier has the acceleration whose magnitude is 0.65 m/s2.
An AC adapter for a telephone answering machine uses a transformer to reduce the line voltage of 120 V to a voltage of 5.00 V. What is the power drawn from the electric outlet, if the transformer is assumed to be ideal
A prosthetic leg has a mass of 3 kg and a center of mass of 20 cm from the knee joint. What is the moment of inertia about the knee joint
A toboggan approaches a snowy hill moving at 14.8m/s, Find the acceleration of the toboggan as it is going up the hill
A 1.8--tall object is 22 to the left of a lens with a focal length of 11 . A second lens with a focal length of 48 is 54 to the right of the first lens. find the distance between the image and the second lens
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