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a 545 g block is pushed into a spring (k=485N/m) a distance of18.0cm. When the ball is released what is itsvelocity?
The block slides across a smooth surface once it leaves thespring and then up a ramp. It travels up the ramp adistance of 275 cm What is the elevation angle of the ramp?
question a heat engine utilizes a heat source at 580 degrees celsius and has an ideal carnot efficiency of 28 to
A proton and electron are far away from each other, how quick would the electron be going in the orbit if we assume centripetal motion?Therefore, what is the electrnss kinetic energy
A copper vat is 10-m long at room temperature (20°C). How much longer is it as it contains boiling water at 1 atm pressure.
a basketball player tries to make a half-court jump shot releasing the ball at the height of the basket. assuming that
a person looking out the window of a stationary train notices that raindrops are falling veritcally down at a speed of
A massless spring hangs from the ceiling with a small object attached to its lower end. How far below yi is the new equilibrium (rest) position with both objects attached to the spring
A combination lock has a 1.5 -diameter knob that is part of the dial you turn to unlock the lock. What is the most torque you can exert on the knob
Two identical conducting spheres each having a radius of 0.500 cm are connected by a light 2.00-m-long conducting wire. A charge of 60.0 µC is placed on one of the conductors
A cube of ice is taken from the freezer at -8.50C and placed in a 95-g aluminum calorimeter filled with 310 g of water at room temperature of 200C. Find the mass of the ice cube
The rocket's speed was measured to be 1.49 c. The rocket's rest length is 380m. An observer flying through measured the rocket to be 199m long.
a 2.0microf capacitor and a 4.0microf capacitor are connected in series across 1000 v. the charged capacitors are then
consider a black box which is approximately a 10-cm cube with two binding posts. each of these terminals is connected
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