What fraction of the corresponding solid will be empty space
If equal, rigidspheres are arranged in a simple cubic lattice in the usual way,i.e., in such a way that they touch each other, what fraction of the corresponding solid will be empty space?
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When a 58 g tennis ball is served, it accelerates from rest to a speed of 45 m/s. The impact with the racket gives the ball a constant acceleration over a distance of 38 cm. What is the magnitude of the net force acting on the ball.
Find the distribution function for the system lifetime T (hint: write an expression for the event that the system has failed by time t in terms of X1 and X2).
The initial velocity of the kit is 12 m/s at an angle of 61° above the horizontal. At the instant when the kit is caught, it is traveling horizontally, so its vertical speed is zero. What is the vertical height between the two climbers?
One of the requirements for tennis balls to be used in an official competition is that, when dropped onto a rigid surface from a height of 100 in. Determine the range of coefficients of restitution of the tennis balls satisfying this requirement.
A plastic rod is charged to -20 by rubbing. a. Have electrons been added to the rod or protons removed? Explain. b. How many electrons have been added or protons removed?
What is the angular displacement and its unit respectively? If an angle displacement is 90 degree, what is the corresponding angle in radians?
A 0.3130-g sample of impure Ca(OH)2 is dissolved inenough water to make 52.90 mL of solution. 20.00 mL of the resulting solution is then titrated with 0.2768-M HCl. What is the percent purity of the calcium hydroxide if the titration requires
The surface of the Sun is appoximately 5,700 K and the temperature of the Earth's surface is about 290 K. What total entropy change occurs when 1,000 J of heat energy is transferred from the Sun to the Earth?
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