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A uniform rod of mass M and length L is sitting vertically with one end resting on a frictionless surface, perfectly balanced. At time t = 0, the top end of the rod is given a tiny push to the right so that it is no longer stable, and the rod falls down.
a. Find the acceleration of the end of the rod just as it hits the ground.
b. Find the angular velocity of rod just as it hits the ground.
suppose that they have same internal energy, which will have a higher temperature: a metal knife in thermal equilibrim with a hot griddle or a 1kg block of ice at -25C or seven 12g ice cubes at -25C.
The three resistors are identical with R1 = R2 = R3= 160 ?, and the battery voltage is 50 V. What is the current through resistor R2? R2 and R3 are parallel so these need to be treated with R1 as Requiv = R1+ (R2*R3)/R2+R3 but don't know where to ..
A particle moves on the x axis from x=0 to x=3. A force of magnitude F(x) = 3x3 + 4x acts on the particle. Calculate the work done by the force
A car is driving directly north on the freeway at a speed of 117 km/h and a truck is leaving the freeway driving 76 km/h in a direction that is 40° west of north. What is the velocity of the truck relative to the car?
You and the friend each drive 47.0 km. You travel at 87.0 km/h; your friend travels at 98 km/h. How long will your friend wait for you at the end of trip.
A small statue is recovered in an archaeological dig. Its weight is measured to be 2.1 lb and its volume 0.06 ft3, What is the statue's weight density
A car speeds past a stationary police officer while travelling 115km/h. The officer immediately begins pursuit at a constant acceleration of 10.20 km/h/s (note the mixed units), just as the driver passes the officer.
An alien race has evolved such that their eyes work exactly like ours except their eyes can be modeled with a biconcave lens. WHen they come to visit us, what kind of glasses would you prescribe
A small electric car overcomes a 260N friction force when traveling 23km/h. What percent of the input power is used to drive the car
An unknown tuning fork produces a beat frequency of 3Hz when played with a 440Hz fork, What is the frequency of the unknown fork
Create a graph corresponding to the stone vertical velocity
A 4.0mW laser beam has its electric field vertical. what's the power of the transmitted beam
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