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A particle is acted on by two torques about theorigin: τ1 has magnitude 10 N m and pointsin the direction of increasing x, and τ2 has a magnitude of 12N m and points in the direction of decreasing y. What are the magnitude and direction of dL/dt, where L is the angular momentum of the particle about the origin? Magnitude?Angle with respect to the x-axis.
A 5?, 10?, and 20? resistor are connected in parallel and the combination connected in parallel to a 20V battery with negligible resistance
what is the ball's speed immediately after the collision?
A copper flask with a volume of 80 cm^3 is filled to the brim with olive oil. If the temp of the system is increased from 8C to 52C, how much oil spills
A plate carries a charge of -2.0 microcoulombs while a rod carries a charge of 2.5 microcoulombs. How many electrons should be transferred from the plate to the rod, so that both objects have the equal charge.
An old-style TV set places 25 kV across two plates of a parallel plate capacitor. An electron is released very close to one plate, compute the speed of the electron when it exits the hole
A hollow plastic sphere is held below the surface of a freshwater lake by a cord anchored to the bottom of the lake. Calculate the buoyant force exerted by the water on the sphere
Suppose Fuzzy, a quantum-mechanical duck, lives in a world in which h = 2?J · s. What is the minimum uncertainty in the duck's speed
on a hot day a house is kept cool by an air conditioner. The outside temperature is 32 degrees celsius and the inside temperature is 21 degree celsius. what is the mechanical power that it requires to hold the inside temperature constant
The acceleration of a motorcycle is given by 0.,(1) = AI -B1 2, where A = 1.50 m/s3 and B = 0.120 m/ s4 The motorcycle is at rest at the origin at time I = O. (a) Find its position and velocity as functions of time. (b) Calculate the maximum velocity..
What is the speed of an electron that has a total energy of zero in a hydrogen atom
The temperature inside a house is 25 degree C while the temperature outside is 10 degree C. Approximately how much energy is radiated per second
A parallel plate capacitor has plates of area 2.0x10^-3 m^2 and a plate separation of 1.0x10^-4 m. Determine the capacitance of this system if air fills the volume between the plates.
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