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A wooden block of mass 2kg, initially stationary is dragged by a force F with magnitude 20 N along a frictionless incline with an angle 0=30 degrees
A.) What is the magnitude of the normal force on the wooden block from the incline.
B.) What is the wooden block acceleration.
A 2.10kg snowball is fired from a cliff 8.55 m high with an initial velocity of 11.90 m/s, directed 47.0° above the horizontal. (a) Using energy techniques, find speed of the snowball as it reaches the ground below the cliff. What is that speed (b) i..
A copper rod, an aluminum rod, and a brass rod, each of 6.00 m length and 1.00 cm diameter, What is the steady-state-temperature of the cooper-aluminum junction
The internal energy of a gas is 547.J. The gas is compressed adiabatically, and its volume decreases by 125.cm3, what is the internal energy of the gas after the adiabatic compression
When a battery is connected to the plates of a 5.00-µF capacitor, it stores a charge of 30.0 µC. What is the voltage of the battery
you and a friend are pulling on a box at 90 degree angles to each other. You are pulling with 80 pounds of force, Calculate the resultant force of pull and the angle of pull from the zero angle
Two carts with masses of 10.60 kg and 2.50 kg, respectively, move in opposite directions on a frictionless horizontal track with speeds of 6.70 m/s and 3.50 m/s, in that order. The carts stick together after colliding head-on. Find the final speed of..
A very large cylindrical tank vented to air contains a layer of oil on top of water. At the bottom of the container there is a horizontal pipe of very small radius, What is the unknown thickness of oil in the tank
When the galvanometer in a wheatstone bridge circuit shows no deflection, explain why are the voltages across opposite branches on each side of the galvanometer necessarily equal?
A small ferryboat is 4.00 m wide and 6.00 m long. When a loaded truck pulls onto it, What is the weight of the truck
A wall is composed of two materials, material 1 has a thickness of 3.68 cm and a thermal conductivity of 0.1 J/msCo while material two has a thickness of 6.02 cm, what is the energy loss per second to the nearest watt
After completing the calculations below, sketch the pH curve for the titration of 25.0 mL of 0.200M solution of a weak acid, HA = (Ka = 6.0 x 10^-7), with 0.200M KOH. Indicate the pH at (a) the beginning of the titration
You switch from a 1.40NA 60x oil immersion objective to a 0.5NA 20x air immersion objective. What is the acceptance angle (in degrees) for the oil immersion objective
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