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A 1100-kg sports car (including the driver) crosses the rounded top of a hill (radius = 85.0 m) at 23.0 m/s.
Determine the normal force exerted by the road on the car?
Determine the normal force exerted by the car on the 74.0-kg driver?
Determine the car speed at which the normal force on the driver equals zero?
A cyclist hits the brakes and decelerates. His wheels were spinning at 175 rev/min initially and 40 rev/min after 5 s of deceleration. Compute the average angular acceleration (in rad/s2) of his wheel during this 5 s period
The transformer in the power supply for a computer's 500-GB external hard drive changes a 120-V input voltage, what is the current in the primary and secondary when the drive is in operation
how to Compute the work done by this field on a charge.
A gas-turbine power plant operates on a simple Brayton cycle with air as the working fluid. determine the net power output of the plant
A child goes down a playground slide with an acceleration of 1.30. Find out the coefficient of kinetic friction between the child and the slide if the slide is inclined at an angle of 34.0 below the horizontal.
Determine the ionization energy of hydrogen if the shortest wavelength in the Balmer series is found to be 3650 AO
asssume that in a particular vacuum tube the potential of the anode is 340 V higher than that of the cathode. If an electron leaves the surface of the cathode with zero initial speed, what is its speed when it strikes the anode.
A battery's ideal voltage is 12.0 V; its internal resistance is 1.46 ohms. If the battery is attached in series to a 21.5-ohms resistor, what is the actual voltage supplied by the battery?
A parallel-plate air capacitor has a capacitance of 940 pF. The charge on each plate is 2.10 µC. How much work is required to double the separation
Calculate the velocity of the object for an elapsed time of t=1s. Use the formula v=v0+at, these use the v0,and the value for acceleration you determined in previouse step. PROBLEM:V=Vo+at Vo is 3.8 m/s a=1.2m/s^2
A hockey puck is sliding across a frozen pond with an initial speed of 9.7 ms. It comes to rest after sliding a distance of 44.0 m. What is the coefficient of kinetic friction between puck and ice.
In a television tube, electrons initially at rest are accelerated by a uniform electric field of magnitude 4.8 105 N/C during the first 5.0 cm of the tube's length, Find the speed of the electrons when they hit the screen
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