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(Figure 1) A bob of mass m = 0.300 kg is suspended from a fixed point with a massless string of length L = 23.0 cm . You will investigate the motion in which the string traces a conical surface with half-angle ? = 19.0 °. What tangential speed v must the bob have so that it moves in a horizontal circle with the string making an angle 19.0 ° with the vertical? Express your answer numerically in meters per second.
an open vertical tube has water in it. a tuning fork vibrates over its mouth. as the water level is lowered in the tube
Apollo 14 astronaut Alan B. Shepard Jr. used an improvised six-iron to strike two golf balls while on the Fra Mauro region of the moon's surface, What is the numeric value of the ratio
A Baseball player hits a ball at ground level, giving it an initial velocity of 26.0m/s at 50.0 degree above the horizontal. How high above the ground does the ball go
A billiard ball moving at 6.00 m/s strikes a stationary ball of the same mass. find the struck ball's velocity after the collision
what is the force per meter on a lightning bolt at the equator that carries 20,000 amps perpendicular to the earths's 3.00 x 10^3 T field
A certain particle of mass m has a momentum of 0.9mc. (For the following questions, leave all your answers in terms of m and/or c.) a) What is the particle’s speed? (Careful here….the answer is not 0.9c)
You need to generate the solenoid which has an inductance of 3.67 mH. You build a uniform winding solenoid with 1.09 m of a thin wire around the tube. How long, in centimeters, should the tube?
A magnetic field has a magnitude of 1.20 10-3 T, and an electric field has a magnitude of 5.40 103 N/C. find the magnitude of the net force that acts on the charge
an object carries a charge of -8.9 microc while another carries a charge of -2.0 microc. how many electrons must be
An object is found to have a weight in air of 500N. It is then tied to a string connected to a balance and immersed in water (density of water is 1000 kg/m3). The scale now reads 450 N. at last the object is immersed in oil and is found to have a ..
Suppose that a 1.00 cm3 box in the shape of a cube is perfectly evacuated, except for a single particle of mass 1.05 10-3 g. Find the average pressure on the other walls
A fighter jet is launched from an aircraft carrier with the aid of its own engines and a steam-powered catapult. The thrust of its engines is 4.65 x 105 N. In being launched from rest it moves during a distance of 60.3 m and has a kinetic energy of 5..
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