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A racetrack has the shape of an inverted cone, as the drawing shows. On this surface the cars race in circles that are parallel to the ground, and the surface is at an angle 31°. For a speed of 36m/s, at what value of the distanced should a driver locate his car if he wishes to stay on a circular path?
A 1500 kg car is approaching the intersection at 11 m/s. He is 40 m away from the intersection. Find the minimum acceleration needed for the car to come to rest
A 2 kg object is dropped and falls 20m, at which point it is caught and a net force of 100N is exerted on the object. How much time did the object take to fall
A slide projector needs to create a 96 cm-high image of a 2.20 cm-tall slide. How far should you place the lens from the slide.
A beam of vertically polarized light encounters two polarizing filters, as shown in the figure(Figure 1) . Calculate the transmitted intensity for each of the cases in the figure, assuming that the incident intensity is 26.5 W/m^2
questiona cart of mass m 1.80 kg can roll without friction on a level track. a light string draped over a light
What is the kinetic energy of these protons in eV afterthey hit the top speed 1,500,000 m/s
an rl circuit has a v 7v battery a r 15000 ohm resistor and a l0.7h connected in series with a switch. the switch is
a plane is flying at 25 degree north of west at 190kmh and encounters a wind from 15 degree north of east at 45kmh.
A place kicker should kick a football from a point 32 m (about 35.0 yd) from the goal, and the ball should clear the crossbar, which is 3.050 m high. When kicked, the ball leaves the ground with a speed of 21.0 m/s at an angle of 49° to the horizo..
You're driving at speed V0 when you spot a stationary moose on the road, a distance 'd' ahead. Find an expression for the magnitude of the acceleration you need
q1. identical samples containing 32p are measured for a period of 1 hr in a counter having an efficiency of 44 percent
suppose that electrical attraction rather than gravity were responsible for holding the moon in orbit around the earth.
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