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A thin spherical shell rolls down an incline without slipping. If the linear acceleration of the center of mass of the shell is0.19g, what is the angle the incline makes with the horizontal?
______ °
A pole-vaulter is nearly motionless as he clears the bar, set 4.2m;m above the ground. He then falls onto a thick pad. The top of the pad is 80 cm{rm cm} above the ground, and it compresses by 50cm;cm as he comes to rest
You are at a rock concert and find that when you stand 15 m from a speaker, the intensity is so high that it hurts your ears. how far from the speaker should you stand
A uniform electric field, E = -50 N/C, fills a region of space. A partcicle with mass, m = 0.025 kg, bearing charge, q = 1mC, Determine where and when the particle crosses the x-axis
A taut rope has a mass of 0.160 kg and a length of 3.40 m. What power must be supplied to the rope in order to generate sinusoidal waves having an amplitude of 0.120 m and a wavelength of 0.490 m and traveling with a speed of 31.5 m/s?
In Chapter 10 in the textbook, we saw that the Achilles tendon will stretch and then rebound, storing and returning energy during a step. What is the spring constant of her Achilles tendon
A person walks 36° north of east for 2.36 km. How far would another person walk due north and due east to arrive at the similar location.
Three people pull simultaneously on a stubborn donkey. Jack pulls eastward with a force of 82.1 N, Jill pulls with 64.3 N in the northeast direction, What is the direction of the net force
An electron that has velocity vector v = (3.4 106 m/s) i hat + (2.9 106 m/s) j hat moves through a magnetic field vector B = (0.03 T) i hat - (0.15 T) j hat. Find the force on the electron
What is the magnitude of the external force essential to hold a 2 kg cart motionless at the top of a 2m high incline which is 30 degrees.
A charge +q is located at the origin, while an identical charge is located on the x axis at x = +0.50 m, Where should the third charge be located
What is the pressure drop due to the Bernoulli effect as water goes into a 3.00-cm-diameter nozzle from a 9.00-cm-diameter fire hose while carrying a flow of 40.0 L/s
If a car moving at 82 takes 300 to stop with uniform acceleration after its brakes is applied, how far will it take to stop under the same conditions if its initial velocity is 41.
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