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The electric potential, VD, at point D (8 m, 0) is -2000 Volt and at point B (2 m, 0) is +400 Volt. Obtain the magnitude and direction of the electric field?
a 1.00 kg glider attached to a spring with a force constant 49.0 nm oscillates on a horizontal frictionless air track.
A rocket with an initial mass of 1000kg adjusts its thrust by varying the rate at which mass is ejected. The ejection speed relative to the rocket is 40 km/s. If the acceleration of the rocket is to have a magnitude of 20 m/s2 at an instant when its ..
your friends mass is 65kg. if she jumps off a 110-cm high table how far does the earth move toward her as she falls? a
A cord with a mass of 500g is tied between two supports. The tension in the cord is 35N and it takes a wave 0.55s to travel from one end to the other. How long is the cord
question1a golf ball with an initial angle of 30deg lands exactly 214 m down range on a level course.a neglect air
While exploring a cave, a spelunker starts at the entrance and moves the following distances: 75.0 meter north, 265 meter east, 190 meter., Calculate the resultant displacement from the cave entrance
A person with mass m1 = 60 kg stands at the left end of a uniform beam with mass m2 = 107 kg and a length L = 3.5 m. What is the location of the center of mass of the system
The equation of a transverse wave traveling along a very long string is y = 7.20 sin(0.0782?x+ 3.62?t), where x and y are expressed in centimeters and t s in seconds. Determine (a) the amplitude, (b) the wavelength, (c) the frequency, (d) the speed
Beams of high-speed protons can be produced in guns using electric fields to accelerate the protons. Determine what acceleration would a proton experience
An observation satellite orbits the planet at a height of 1000 . What is the projectile's speed as it passes the satellite?
A 2.20-kg object attached to a spring moves without friction (b = 0) and is driven by an external force given by the expression F = 4.50sin(2*pi*t), Find the resonance angular frequency of the system
Suppose a pion is moving at a speed of 0.986c, and an observer who is stationary in a laboratory measures the pion's lifetime to be2.7 × 10-8 s. What is the lifetime according to a hypothetical person who is riding along with the pion
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