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Which of the following are true about vector components for vectors in two dimensions. (Choose all that apply)
josh starts throwing his pitch we assume that his arm moves in a perfect circular arc and his arm is 0.7 m long. if he
During 5 successive 0.97 min intervals, a runner moves at the following constant speeds: 0.436 km/min, 0.250 km/min, 0.160 km/min, 0.160 km/min, and 0.320 km/min. calculate the total distance traveled and the average speed.
A wheel of radius 1.6m rotates at a uniform speed. what is the point's tangential speed
two blocks are connected by a massless string which passes through a hole in a frictionless table. the blocks have
The left face of a bioconvex lens has a radius of curvature of 10.3 cm, and the right face has a radius of curvature of 15 cm. Calculate the focal length of the lens
a 1900 kg car rounds a curve of radius 70 m banked at an angle of 12 deg. what is the magnitude of the friction force
The intake in the figure has cross-sectional area of 0.79 m2 and water flow at 0.44 m/s. What is the pressure difference between inlet and outlet
A 150g ball and a 250g ball are connected by a 34cm long, massless, rigid rod. The balls rotate about their center of mass at 130 . what is the speed of ball of 150 g.
Struck from behind, a 950-kg stopped car accelerates from rest to 40km/h in 75 ms, What horizontal force on the head would accelerate it along with the rest of the body
the electronic flash attachment for a camera contains a capacitor for storing the energy used to produce the flash. in
As a spacecraft approaches a planet, the rocket engines on it are fired (turned on) to slow it down so it will go into orbit around the planet. compute how long (in minutes) must the engines be fired
the belt passing over the pulley is subjected to two forces f1 and f2 each having a magnitude of 40n . f1 acts in the
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