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Two vertical forces are applied to both ends of a horizontal lever which is in equilibrium. Force that is applied to the left end has magnitude equal to 60 N and its lever arm is 20 cm. What force is applied to the right end if its lever arm is 30 cm.
You and a close friend stand facing each other. You are as close as you can get without actually touching. If a wire is attached to each of you, estimate the capacitance of this "human capacitor
In an internal combustion engine, the air-fuel mixture at the end of the ignition phase has volume 7.34×10?4 m3, what is the final pressure after the expansion
You are designing the section of a roller coaster ride, calculate the minimum radius for the semi-circular hump
what is the initial velocity of a silver bullet if it completely melts when striking a werewolf? the initial temperature of the bullet is 300
A sparrow's maximum air speed (speed relative to the air around it) is 20 m/sec. She wants to fly to her nest which is due north, but there is 10 m/sec wind blowing from west to east. What direction should she fly?
In 9.5s, a fisherman wind 2.6m of fishing line onto a reel whose r is 3cm. The line is being reeled at a constant speed. Determine the angular speed of the reel
In general, what are the strengths and weaknesses of virtual labs? What are the strengths and weaknesses of hands-on labs?
In reaching her destination, a backpackerwalks with an average velocoity of 1.34 m/s. How far east did she walk
Consider a balloon containing nitrogen molecules at room temperature (20°C) and atmospheric pressure. what is the number of molecules in the balloon
Calculate the net torque (magnitude and direction) on the beam in the figure below about the following axes- an axis through O perpendicular to the page and an axis through C perpendicular to the page.
If a 40 kg gymnast and a 400 kg sumo wrestler each dropped from 1 m above the trampoline, find the final position of each athlete.
on a cold winters morning a child sits on a sled resting on smooth ice. when the 9.75-kg sled is pulled with a
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