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The second hand of a large grandfather clock has length 20 cm, very small width and depth, and a mass of 100g. It is attached at one end to the clock's main spindle shaft. What is its angular momentum about this shaft? What is the second hand's kinetic energy?
Find the speed of an orbiter in a circular orbit that is just above the surface of a planet, given that the orbiter's acceleration is equal to the planet's gravitational acceleration of 2.36 m/s2
An ice cube sliding along the ground at 3 m/s goes off a ramp pointed straight up. What is the speed of the ice cube when it comes down, just before it hits the ground
An infinitely long line of charge has a linear charge density of 4.50×10?12C/m. How close does the proton get to the line of charge
An electrical cable consists of 184 strands of fine wire, each having 3.47 µ? resistance. What is the resistance of the cable
A certain car battery with a 12.0 V emf has an initial charge of 178 A•h. assume that the potential across the terminals stays constant until the battery is totally discharged, for how long in hours can it deliver energy at the rate of 115 W.
A rocket is launched at an angle of 52° above the horizontal with an initial speed of 103 m/s. The rocket moves for 3s along its initial line of motion with an acceleration of 32 m/s2. At this time, its engines fail and the rocket proceeds to move..
Three charges are at the corners of an isosceles triangle, Calculate the amount of work required to assemble this system of charges, assuming they are brought in from infinity
Illustrates the difference between acceleration and velocity
Two objects attract each other gravitationally with a force of 2.3×10-10 when they are 0.65 apart. Their total mass is 5.0 . Find out their individual masses.
A toroidal solenoid has a mean radius of 10.0cm and a cross-sectional area of 4.8cm2 and is wound uniformly with 115 turns. What is the mutual inductance of these coils
Suppose that when a 12.0-V battery drives a current of 6.7 A through a resistive device, How much is the internal resistance (in ohms) of the 12.0-V battery
plan a free-body diagram of the wire and bird system. How much tension does the bird produce in the wire? Ignore the weight of the wire.what is the rotational inertia of the wheel.
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