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A ball is tossed from an upper-story window of a building. The ballis given an initial velocity of 8.70m/s at an angle of 21.0° below the horizontal. It strikes the ground6.00 s later.a) How far horizontally from the base of the building does the ball strike the ground?b) Find the height from which the ball was thrown.c) How long does it take the ball to reach a point 10.0 m belowthe level of launching?
What is the average force exerted on the ball. How fast (in ) must a centrifuge rotate if a particle 6.50 from the axis of rotation is to experience an acceleration of 125,000 's.
A dampled harmonic oscillator is made from a 0.8kg mass on a k=14N/m spring with a damping constant of 400g/s, what is the initial energy of the oscillator
An electron is confined in a 2.00nm box. What are it's three lowest energy levels? What wavelength photon would be emitted during an n=3 to n=1 transition
A standing wave pattern on a string is described
A long jumper leaves the ground at 45 above the horizontal and lands 8.2 away. What is her "takeoff" speed
A disk with a radius of 1.5 m whose moment of inertia is 34 kg · m2 is caused to rotate by a force of 160 N tangent to the circumference
Infrared light of wavelength 2.5 illuminates a 0.20-mm-diameter hole. What is the angle of the first dark fringe in rad, in deg? and sin (fi)=lambda/D is not the formula
A series RLC circuit has a resistance of 24 %u03A9 and an impedance of 100 %u03A9. what average power is delivered to the circuit
Consider a square window of side L=1.00m that lies in the plane of the blackboard at the front of the classroom. calculate the electric flux through the window
A 460 kg piano is being lowered into position by a crane while two people steady it with ropes pulling to the sides. Bob's rope pulls to the left, What is the tension in the main cable supporting the piano
Two protons are released from rest, one from location 1 and another from location 2. When these two protons reach location 3, what is the electric potential at location 3
Consider a visual binary star system with a period of 55.41 years. Its measured trigonometric parallax is 0.4217'' and, assuming that the plane of the orbit is in the plane of the sky, the true angular extent of the semi-major axis is 6.69''.
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