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A bowling ball that weighs 60.0 N hangs from the ceiling tied to a 3.80 m string. The ball is pulled to one side and then released; the ball swings like a pendulum. As the rope passes through the vertical, the speed of the ball is 4.20 m / s. What is the value of the tension force in the rope?
The longest recorded pass in an NFL game traveled 83 yards in theair from the quarterback to the receiver. Assuming that thepass was thrown at the optimal 45 degree angle, what was the speedat which the ball left the quarterbacks hand?
Calculate the satellite's kinetic energy, gravitational potential energy, and total orbital energy.
Suppose that the central diffraction envelope of a double-slitdiffraction pattern contains 3 brightfringes and the first diffraction minima eliminate (are coincidentwith) bright fringes. How many bright fringes lie between the first and second minima..
What is the magnitude of the acceleration of the box along the ramp? How far along the ramp does the box go before coming to rest?
A flat coil of wire is used with an LC-tuned circuit as a receiving antenna. The coil has a radius of 0.35 m and consists of 480 turns. find the magnitude of the average emf induced in the antenna
A spherical wave with a wavelength of 1.66 m is emitted from the origin. At one instant of time, the phase at r=2.58 m is π radians. At that instant, what is the phase of r=4.22 m?
A small electric car overcomes a 250 N friction force when traveling 30 km/h. How much power is dissipated in the coils
Two point-like particles are placed 16.8 cm apart and are given equal and opposite charge. The first particle, of mass 16.3 g, has an initial acceleration of 4.80 m/s2 towards the second particle. What is the mass of the second particle if its initia..
An engine takes 5 seconds to go from its idling speed of 600 rev/min to 1200 rev/min (a) What is it's angular acceleration?
Suppose you are riding a stationary exercise bicycle, and the electronic meter indicates that the wheel is rotating at 11.7 rad/s. how far would you have gone if the bike could move
A car makes a trip due north for three-fourths of the time and duesouth one-fourth of the time. The average northward velocity has amagnitude of 24 m/s, and the averagesouthward velocity has a magnitude of 23 m/s. What is the average velocity (magnit..
A higway curve with a radius of 400m is banked properly for a car traveling 120km/h. how much sideways force must the tires exert
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