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Pat builds a track for his model car out of wood. The track is 19.00 cm wide, 5.00 m long, and 2.78 m high, and is solid. The runway is cut such that it forms a parabola by the equation y = (x - 5)2 / 9. Locate the horizontal coordinate of the center of gravity of this track. (answer in meters)
A movie camera with a (single) lens of focal length 90 mm takes a picture of a person standing 21 m away. If the person is 180 cm tall, what is the height of the image in millimeters
a 5.00 capacitor is initially charged to a potential of 16.0 . it is then connected in series with a 3.75 inductor.what
An AC power generator produces 54 A (rms) at 3600 V. The voltage is stepped up to 100000 V by an ideal transformer, What percentage of the power delivered by the generator is dissipated as heat in the power line
Light in air enters a diamond (n= 2.42) at an angle of incidence of 48 degrees. What is the angle of refraction inside the diamond
A nearsighted sheriff fires at a cattle rustler with his trusty six-shooter. Fortunately for the rustler, the bullet misses him and penetrates the town water tank, causing a leak. how far above the hole is the water level
at some point in space,the x and y components of the electric field are Ex= 1.73 N/C, respectively and Ey= 3.75 N/, respectively. What is the net charge of the particle
What is x and y coordinates of the shell
The turbine and associated rotating parts of a jet engine have a total moment of inertia of 29 kg m2. The turbine is accelerated uniformly from rest to an angular speed of 140 rad/s in a time of 32 s.
A certain automobile engine delivers 2.39 104 W (32.0 hp) to its wheels when moving at a constant speed of 25.0 m/s ( 56 mi/h). What is the resistive force acting on the automobile
A wheel of radius 160 cm is has an angular velocity of 400 radians per minute. What is the linear velocity of the wheel in kilometers per hour
the cylindrical imaging drum of a photocopier is to have an electric field just outside its surface of 3.00 105 nc.a if
An electron, localized inside a 1D box (width = 0.6 nm) changes from the n=4 state to the lowest energy state and a photon is omitted as a result. What is the wavlength of the photon?
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