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Q1. A thermos contains 161 cm3 of coffee at 82.0 °C. To cool the coffee, you drop two 10.8-g ice cubes into the thermos. The ice cubes are originally at 0 °C and melt completely. What is the final temperature of the coffee in degrees Celsius? Care for the coffee as if it were water.
Q2. A fountain shoots a jet of water 10 m into the air. The fountain has a round nozzle of diameter 2.5 cm at ground level, fed by a pump located 3.5 m below ground through a round pipe of diameter 9.15 cm.
What is the gauge pressure of the water at the pump? Suppose steady, laminar flow of water, no viscosity, and no air drag on the water jet. The acceleration of gravity is 9.81 m/s2.
What is EMF in the secondary circuit
A large tanker truck can carry 30 ton (30,000 lb) of liquid. (a) What volume of water can it carry? (b) What volume of gasoline can it carry.
You are trying to advance your shooting skills by shooting at a can on top of a fence post. You miss the can, and the bullet, moving at 207 m/s, is embedded 1.54 cm into the post when it comes to a stop. If constant acceleration is assumed, how long ..
Find out the magnitude of angular acceleration of the wheel
The linear impulse delivered by the hit of a boxer is 248 N • s during the 0.373 s of contact. What is the magnitude of the average force exerted on the glove by the other boxer? React in units of N
What is change in the car's kinetic energy KEf - KEo from A to B. How fast will the father be moving.
What is magnitude of the change in the magnetic field
What are the corresponding velocity vectors
A cannonball launched with an initial velocity of 161 m/s at the angle of 45 degrees follows a parabolic path and hits a balloon at the top of its trajectory. Neglect air resistance, how fast is it going when it hits the balloon? What is the accelera..
What is the dissimilarity between sprinters and nonathletes
A man drags a 72.0 kg crate across the floor at a constant velocity by pulling on a strap attached to the bottom of the crate. The crate is tilted 26 degrees above the horizontal, and the strap is inclined 68 degrees above the horizontal. The center ..
What is tension in each of the cables
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