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The 200-N force is to be resolved into components along lines a-a' and b-b'. (a) Determine the angle a using trigonometry knowing that the component along a-a' is to be 150 N. (b) What is the corresponding value of the component along b-b'?
Assume that the earth andthe moon have circular orbits (which is almost true) and that theperiods of their orbits are 365 {\rm days} and 28.0 {\rm days}, respectively. How much work does the earth do on the moon in one day
At a Washington Nationals game, Jason Werth hits a baseball directly upward. You observe it takes 3.5 s for the ball to reach the top of its trajectory. Find the maximum height it reaches
A planet orbits a star once every 2.99 107 s in a nearly circular orbit of radius 1.51 1011 m. determine the tangential speed of the planet
a rubber ball is shot straight up from the ground with speed v0. simultaneously a second rubber ball at height h
A helicopter, starting from rest, accelerates straight up from the roof of a hospital. The lifting force does work in raising the helicopter. What is the average power generated by the lifting force
Charge of 16 nC is distributed uniformly along the circular hoop of radius equal to R. Find an integral expression ('s) for the electric field of the x axis at x=d. (Do not integrate)
Question 3: Transformation of Angles In this question, you are asked to find and compare the transformations of the angle of the velocity vector of a particle and the angle of an inclined stick. The relationship between the two frames of referen..
The sound level measured 5.2 m away from a jet engine is 140 dB. At what distance is the sound level exactly half
A 0.39 cm high object is placed 8.7 cm in front of a diverging lens whose focal length is -7.5 cm. What is the height of the image
A uniform plank of length 5.5 m and weight 205 N rests horizontally on two supports, with 1.1 m of the plank hanging over the right support .To what distance x can a person who weighs 447-N walk on the overhanging part of the plank before it just ..
A short blast of sound with frequency 335 Hz is created by a speaker that projects the sound equally in all directions. what was the power of the blast
An 1150-kg car pulls a 450-kg trailer. The car exerts a horizontal force of 3.8 x 103 N against the ground in order to accelerate. What force does the car exert on the trailer
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