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A 50-gram ice cube at -30 degrees celcius is heated until 45g hasbecome water at 100 degree celcius and 5g has become steam at 100degree celcius. how much heat was added to accomplish this?
Consider the double delta-function potential
An aluminum sphere has a radius of 46cm on the Earth. It is then taken to a distant planet where theatmospheric pressure P is much larger than on the Earth. If the sphere has a radius of 29 cm onthat planet, what is P?
A series circuit with R=100ohms, L=.5H and C=50 MuF is driven by an ac signal of frequency 75 Hz and amplitude of 18V. what are the rms values of the voltage and current
When a train's velocity is 12.0 m/s eastward, raindrops that are falling vertically with respect to the earth make traces that are inclined 30.0 degree to the vertical on the windows of the train. What is the horizontal component of a drop's veloci..
Glenn starts his day by walking around a circular track with radius 48 m for 15 minutes. what is his angular position with respect to where he starts
an object lifted 10 meters gains 200 j of potential energy. if the same object is lifted 20 meters its potential energy
a calorimeter of negligible mass contains 1100 g of water at 303 k and 41 g of ice at 273 k. find the final temperature
An AC series circuit has 12.0 ? resistance, 15.00 ? inductive reactance and 10.00 ? capacitive reactance. obtain the power output
On a planet in a solar system far from ours, you release a rock from rest at a height of 12.0 m above the surface of the planet, What is the mass of the planet
The steel E string of a violin is under a tension of 46.0 N. The diameter of the string is 0.170 mm and the length under tension is 35.0 cm. Find the unstretched length of this string and the work needed to stretch the string. (Give your answers with..
A model rocket launches with an initial velocity of 6 m/s, at an angle of 88 degrees (with respect to the horizon). What is the maximum height attained by the rocket
A 1.3-kg block of ice is initially at a temperature of -6.0%u2218C. If 3.0*10^5 J of heat are added, what is the final temperature
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