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A rock is thrown off a 120m cliff at a velocity of 2.9m/s[37 degrees above horizontal]. What is the final velocity of the rock as it hits the ground?
A long straight wire has fixed negative charge with a linear chargedensity of magnitude 4.0 nC/m. The wire isto be enclosed by a coaxial, thin-walled, nonconducting cylindricalshell of radius 1.6 cm.
A 10 g bullet traveling at 430m/s strikes a 11kg , 1.1-m-wide door at the edge opposite the hinge. What is the angular velocity of the door just after impact
Determine the position q1 of the image formed by the first converging lens.
A diver releases an air bubble of volume 2.9 cm3 from the depth of 18 m below the surface of a lake, where the temperature is 7.2°C. What is volume of the bubble when it reaches just below the surface of the lake, where the temperature is 22°C.
The temperature of 1.3 kg of water is 34° C. To cool the water, ice at 0° C is added to it. The desired final temperature of the water is 11° C. determine how much mass m of ice should be added
A wrecking ball swings at the end of an 11.0 meter cable on a vertical circular arc. Evaluate what speed vf does the ball have when the cable makes an angle of 17.0 degree with respect to the vertical
The length of a moving spaceship is 28.4 m according to an astronaut on the spaceship. what is the speed of the spaceship
Assuming a typical efficiency for energy utilize by the body, how many slices of pizza should you eat to walk for 1.0 hr at a speed of 5.0 km/hr ? (Suppose your mass is 68kg.)
an object starting from rest begins to rotate with constant angular acceleration a. in a time t the object rotates
What is the minimum energy that photons must have to produce 59 keV electrons in a Compton scattering
An equilateral triangle 10 m on a side has a 17 kg spheres whose enters are at each corner of the triangle. A spherical mass each has a radius of 0.5 m. if balls are released from rest, what speed will they have when they collide at the center of the..
An object of mass m1 = 4.90 kg is connected by a light cord to an object of mass m2 = 3.00 kg on a frictionless surface. Find the acceleration of the two masses
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