Physics Homework Solutions

Equation of Continuity Problem

In an adjustable nozzle for a garden hose, a cylindrical plug is aligned along the axis of the hose and can be inserted into the hose opening. The purpose of the plug is to change the speed of the water leaving the hose. The speed of the water passing around the plug is to be 3 times greater than the speed of the water before it ...continues

Basic Physics (Change of Momentum; Average Force Used; Average Angular Speed; Coefficient of Static Friction, etc ... )

18. A 0.20-kg billiard ball traveling at a speed of 15 m/s strikes the side rail of a pool table at an angle of 60 degrees. If the ball rebounds at the same speed and angle, what is the change of momentum? 34. When bunting, a baseball player uses the bat to change both the speed and direction of the baseball. (a) Will the mag ...continues

Please, show me how you got the answers and give me the answers. Please choose from the chose Thanks

1. A wooden archeological artifact is reported to be 2000 years old on the basis of carbo-14 dating. What is the fraction of carbon-14 found in the specimen to that found in new wood? The half-life of carbon-14 is 5700 years. a. 1.0 b. 0.0 c. 0.784 d. 0.627 2. How many protons and how many neutrons a ...continues

Ideal Gas Model Question, Quasi-Static Question

The Bermuda Triangle A cylinder with initial volume V contains a sample of gas at pressure p. The gas is heated in such a way that its pressure is directly proportional to its volume. After the gas reaches the volume 3V and pressure 3p, it is cooled isobarically to its original volume V. The gas is then cooled isochorically u ...continues

Calorimetry problem involving temperature and phase changes

Calorimetry problem involving temperature and phase changes *For complete problem, see attachment

Simple Ways of Expanding

Please do not place your response in a .pdf or .cdx format, but Word documents are okay. Thanks! Please see attached for actual problem. Note that there are six multiple choice subparts in this problem!

Compression of a Jaguar XK8 Cylinder

Please do not place your response in a .pdf or .cdx format, but Word documents are okay. Thanks! Here's the actual problem: A Jaguar XK8 convertible has an eight-cyliner engine. At the beginning of its compression stroke, one of the cylinders contains 499 cm^3 of air at atmospheric pressure (1.01x10^5 Pa) and a temperature ...continues

Problem 17.30

Please do not place your response in a .pdf or .cdx format, but Word documents are okay. Thanks! Here's the actual problem: A gas cylinder holds 0.10 mol of O_2 at 150 degrees Celsius and a pressure of 3.0 atm. The gas expands adiabatically until the pressure is halved. What is the final volume in cubic meters?

Calculate Specific Heat of Solid Phase and of Liquid Phase

An experiment measures the temperature of a 500 g substance while steadily supplying heat to it. The figure shows the results of the experiment (see attachment) What is the (a) specific heat of the solid phase, (b) specific heat of the liquid phase?

Problem 17.37

Please do not place your response in a .pdf or .cdx format, but Word documents are okay. Thanks! Here's the actual problem: 8.00 g of aluminum at 200 degrees Celsius and 18.0 g of copper are dropped into 55.0 cm^3 of ethyl alcohol at 15 degrees Celsius. The temperature quickly comes to 24.0 degrees Celsius. What was the in ...continues

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