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A child operating a radio-controlled model car on a dock accidentally steers it off the edge. The car's displacement 1.0 s after leaving the dock has a magnitude of 12.8 m. What is the car's speed at the instant it drives off the edge of the dock?
a certain toaster has a heating element made of nichrome resistance wire. when the toaster is first connected to a 100
A car race takes place on a long straight track, at the beginning of the race the car accelerates from rest to some top speed with a (constant) acceleration of 1.13 m/s2, What was the top speed reached by the car
What is an expression for the maximum displacement of m2
The longest recorded pass in an NFL game traveled 83 yards in the air from the quarterback to the receiver. find the speed at which the ball left the quarterback's hand
At one point in a pipeline, the water's speed is 3 m/s and the gauge pressure is 4.00×10^4 Pa. Find the gauge pressure at a second point in the line 11 m lower than the first if the pipe diameter at the second point is twice that at the first.
A car of mass 1,800 kg is initially traveling at a speed of 15 m/s. Calculate the change in the kinetic energy of the car
A student sits at rest on a piano stool that can rotate without friction. The moment of inertia of the student-stool system is 4.7 kg *m^2. Calculate the final kinetic energy of the system
A high-voltage transmission line with the resistance of 0.30 /km carries a current of 950 A. The line is at a potential of 710 kV at the power station and carries the current to a city located 161 km from the station.
Find the electric and magnetic field amplitudes in an electromagnetic wave that has an average energy density of 2.7 J/m3. electric field
One gallon of gasoline releases approximately 1.0 108 J when it is "burned" (i.e., undergoes combustion) in a car engine. what is the mechanical work done by the engine
The angle of incidence at a solid/liquid boundary is 78.1°,and the index of refraction of the solid is n = 1.62.(a) What must be the index of refraction of the liquid such that the direction of the light entering the liquid isnot changed?
Two isotopes of carbon, carbon-12 and carbon-13, have masses of 1.993 10-26 kg and 2.159 10-26 kg, Determine the spatial separation between the two isotopes after they have traveled through a half-circle
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