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The rear window of a van is coated with a layer of ice at0oC. The density of the ice is 917kg/m3. The driver of the van turns on therear-window defroster, which operates at 12V and 23A. Thedefroster directly heats an area of 0.52m2 of therear window. What is the maximum thickness of ice coatingthis area that the defroster can melt in 3.0 min?
Jupiter makes one complete orbit of the Sun every 11.9 years. Calculate the radius of the orbit of Jupiter
A small but measurable current of 8.4 x 10-10 A exists in a copper wire whose diameter is 2.9 mm. calculate the current density and electron drift speed
A baseball has a mass of 140 grams and a softball has a mass of 280 grams. In which of the situations would they both have the same momentum.By how much will a bar long of the same material.
The HR diagram is a powerful tool to analyze evolution and characteristics of stars. The HR diagram is used to plot the temperature/luminosity evolution of stars from the interstellar medium to the main sequence. As a star evolves along this path ..
A compound microscope has objective and eyepiece focal lengths of 6.5mm and 2.2cm , respectively. what is the magnification of the instrument
Starting from rest, two skaters "push off" against each other on smooth level ice, where friction is negligible. find the recoil velocity of the man relative to the ice
Two air-track gliders of equal mass are initially moving in the same direction along a straight line. What is the speed of the second glider
A concave shaving mirror has a radius of curvature of27.0 cm. It is positioned so that the(upright) image of a man's face is 3.50 times the size of the face. How far is the mirror from the face
A ball is thrown horizontally from an elevation of 140.0 m above ground with a speed of 20.0m/s. How long before it hits the ground and where will it be with respect to the starting point once it lands
A fighter pilot dives his plane toward the ground at 230 m/s.He pulls out of the dive on a vertical circle. What is the minimun radius of the circle
A stone is thrown out the window of high rise builind at an angle of 37.5° to the horizontal with an initisl speed of 22.0 m/d. from what height was the stone launched
The outfielder throws a baseball with an initial speed of 10 m/s. An infielder catches the ball at the level 1 m lower, what work is done by air resistance
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