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The temperature outside is 0 degrees C when you are watching a football game. The referee blows his whistle when he is 110m away from your seat. How long does it take before you hear this whistle? How long would it take if the temperature was 35 degrees C and it had to travel the same distance?
The electric potential in a certain area is given as: V = 3x^2 + 5yz. what is the electric field in the area
A 78.0-kilogram child starts from rest from the top of a frictionless slide that is 5.4 meters tall. The bottom of the slide is 28.6 centimetres above the ground. The kinetic friction is a constant 116. 0newtons and acts over the 5.0 meter length of ..
A woman holds a tube of lipstick 3.5 cm from a spherical mirror and notices that the image of the tube is upright and one third its normal size. (a) Determine the position of the image. Is it in front of or behind the mirror? (Use a negative number b..
A laborer pushes a wheelbarrow weighing 200 N at 25.0° above the horizontal. If he pushes it a distance of 25.0 m, How much work is done
Amazingly, at exact distance that you calculated in question 2a (73.5 meters), there was a trampoline! Thinking quickly, I orient myself appropriately and hit the trampoline.
question1a truck is carrying a steel beam of length 17.0 m on a freeway. an accident causes a beam to be dumped off the
A plastic cylinder of length 38 cm its ends ground to convex (from the rod outward) spherical surfaces, each having radius of curvature 19 cm, How far will the image of the object lie from the right end
A speedboat starts from rest and accelerates at +2.42 m/s2 for 8.71 s. At the end of this time, the boat continues for an additional 4.33 s with an acceleration of +0.654 m/s2. Find the total displacement of the boat
An electromagnetic velocity filter (sometimes called a Wien filter) is used in a variety of experiments and other applications, such as electron microscopes, in which we need a beam of charged particles all going at the same speed. Generally the s..
An electromagnetic plane wave is traveling through a vacuum along the positive z-axis. At a particular point in space at one instant in time the electric field vector is E=i(6V/m) + j(6 V/m). (a) Find the magnetic field vector at the same point in sp..
A charged particle moves through a velocity selector at a constant speed in a straight line, Find the charge-to-mass ratio of the particle
A flight attendant pulls her 70 N flight bag a distance of 378 m along a level airport floor at a constant velocity. Find the work she does on the flight bag
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