Determine work should the total external force
A 6100-kg satellite is in a circular earth orbit that has a radius of 2.7x10^7 m. A net external force must act on the satellite to make it change to a circular orbit that has a radius of 5.6x10^6 m. What work must the net external force do?
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A plane has an airspeed of 142 m/s. A 16.0 m/s wind is blowing southward at the same time as the plane is flying. If the velocity of the plane relative to Earth is due east, what is the magnitude of that velocity?
An electric field does 9.36 MeV of work in moving a very small charged particle through a potential difference of -3.12MV. Find the charge of the particle as a multiple of e.
For 1000-Hz waves in air, what displacement amplitude would be needed for the pressure amplitude to be at the pain threshold, which is 30 Pa?
A 600kg car traveling at 30 m/s is going around a curve having a radius of 120m that is banked at angle of 25 degrees. The coefficient of static friction between the car's tire and the road is .3. What is the magnitude of the force exerted by fric
A child pulls a 3.00-kg sled across level ground at constant velocity with a light rope that makes an angle 34.0° above horizontal. The tension in the rope is 5.00 N. Assuming the acceleration of gravity is 9.81 m/s2, what is the coefficient o
If the distance between the two mirrors is 0.90 m, how far in front of the eyepiece should you place the photographic film to record the image of a star?
The amplitude decreases to 1.087 cm in 4.57 s, what is the damping constant for the system?
A magnet at the end of the Dial-O-Gram balance arm. The arm has an aluminum plate in the magnetic gap. What is the purpose of this magnet system? (You may want to search online for eddy current or Lenz' Law demonstrations..
Determine the rates of radiation heat transfer between this person and the surrounding surfaces in both summer and winter if the exposed surface area, emissivity, and the average outer surface temperature of the person are 1.6 m2, 0.95, and 32°
An infinitely long line of charge has a linear charge density of 6.50 × 10-12 . A proton is at distance 14.0 from the line and is moving directly toward the line with speed 1900 . How close does the proton get to the line of charge?
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