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A glass rod rubbed with silk acquires a charge of +1.1×10?9 . Is the charge on the silk positive, zero, or negative? Is the charge on the silk positive, zero, or negative? positive zero negative Why? Essay answers are limited to about 500 words (3800 characters maximum, including spaces). What is the charge on the silk? Express your answer using two significant figures. How many electrons have been transferred to the silk? Express your answer using two significant figures. How much mass has the glass rod gained or lost? Express your answer using two significant figures.
If the radius of the equipotential surface of point charge is 13.5 m at a potential of 2.10 kV, what is the magnitude of the point charge creating the potential
A 3.9 kg stone is tied to a 5.8 m long string and swung around a circle at a constant angular velocity 1.7 1/s. Find the magnitude of the torque about the origin
The other end goes over a pulley 1.8m away and is attached to a 7 kg cement block. When the string is plucked like a guitar the third harmonic has a frequency of 522Hz.
a golf club strikes a 0.059 kg golf ball in order to launch it from the tee. For simplicity assume that the average net force applied to the ball acts parallel to the ball's motion, With what speed does the ball leave the club
A 0.275 kg puck, initially at rest on a frictionless horizontal surface, is struck by a 0.220 kg puck that is initially moving along the x axis with a velocity of 2.18 m/s, Determine the velocity of the 0.275 kg puck after the collsion
an insulated beaker with neligiblr mass contains.280kg of liqid water at a temperature of 84.5degree celicous. what is the final temperature of the ice/ water mixture
Rocket-powered sleds are used to test the human response to acceleration. If a rocket-powered sled is accelerated to a speed of 444 m/s in 1.8 seconds, then what is the acceleration and what is the distance that the sled travels?
A yo-yo has a rotational inertia of 970 g·cm2 and a mass of 104 g. Its axle radius is 3.15 mm, What is the magnitude of its linear acceleration
What fraction of the original kinetic energy of puck dissipates during the collision, kinetic friction before is 40 m/s, kinetic friction after is 29.3 m/s
q1. the period of oscillation of an object in a frictionless tunnel running through the earth is 84.3 min. what is the
If the plant produces electric energy at the rate of 1.3GW , how much exhaust heat is discharged per hour
Describe briefly a current health problem. A father racing his son has half the kinetic energy of the son, who has one-third the mass of the father. The father speeds up by 2.5 m/s and then has the same kinetic energy as the son.
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