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45 grams of water whose temperature is 30° Celsius are added to a thin glass containing 700 grams of water at 20° Celsius (about room temperature). What is the final temperature of the water?
A vertical solid steel post of diameter d = 23.1cm and length L = 2.36m is required to support a load of mass m = 8260kg. What is the stress in the post
A student, starting from rest, slides down a water slide. On the way down, a kinetic frictional force (a nonconservative force) acts on her. how fast is the student going at the bottom of the slide
You're an optometrist, mounting a projector at the back of your 3.8m -long exam room, 2.6m above the floor. At what height should you center the pattern on the wall
A 150-g block is projected up a ramp with an initial speed of 8.1 m/s. If the ramp is inclined 28° with the horizontal, how far along the surface of the ramp does the block slide before coming to a stop
An astronaut on a small planet wishes to measure the local value of g by timing pulses travelling down a wire which has a large object suspended from it. Imagine the wire of mass 3.80 g is 1.60 m long and has a 3.00-kg object suspended from it. A pul..
A polytropic process for an ideal gas in one in which pressure and volume are related by = const., where n is a constant. It is a generalization of the special processes considered earlier. Thus n = 0 defines an isobaric process, n = cp/cv an adia..
A man seeking to set a world record wants to tow a 108000-kg airplane along a runway by pulling horizontally on a cable attached to the airplane. obtain the greatest acceleration the man can give the airplane
A charge of 3.80 10-6 C is placed on a small conducting sphere that is located at the end of thin insulating rod whose length is 0.22 m. The rod rotates with an angular speed of ω = 156 rad/s about an axis that passes perpendicularly through its o..
q1. on a cool morning while the temperature is 13.0 c you measure the pressure in your car tires to be 20.0. after
A 34.0kg crate is initially moving with a velocity that has magnitude 3.70m/s in a direction 37.0 %u2218west of north. How much work must be done on the crate
A 10 \rm g bullet traveling at 440m/s strikes a 12kg , 1.2-\rm m-wide door at the edge opposite the hinge. The bullet embeds itself in the door, What is the angular velocity of the door just after impact
Considering only the gravitational forces that the spheres exert on each other, illustrate what is the magnitude of the initial acceleration of the third sphere?
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