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A wrench 0.500m long is applied to a nut with a force of 80.0 N. Because of the cramped space, the force must be exerted upward at an angle of 60.0º with respect to a line from the bolt through the end of the wrench. How much torque is applied to the nut?
Calculate the speed of an electron after it accelerates from rest through a potential difference of 160 .
What is the magnitude of the electrostatic force the molecule exerts on it?
A simple pendulum 2.0m in length, is released with a push when the support string at an angle of 25 degrees from the vertical. What is the speed at the bottom of the swing
Two tiny conducting spheres are identical and carry charges of -21.4C and +51.0C. They are separated by a distance of 3.30 cm. (a) What is the magnitude of the force that each sphere experiences?
A cube of ice is taken from the freezer at -8.7°C and placed in a 97 g aluminium calorimeter filled with 351 g of water at the room temperature of 20°C. The final situation is observed to be all water at 19°C. What was the mass of an ice cube.
Consider a series RLC circuit with R = 15 , L = 196 mH, C = 75 µF, and a maximum voltage of 148 V. What is the impedance of the circuit at resonance
A small ball of mass, m = 8.60 × 10-9 g, has acquired an excess charge. The ball is then placed between two parallel plates spaced x = 3.45 mm, How many electrons did the ball gain or lose
Three identical masses of 360kg each are placed on the x axis. One mass is at = -110cm , one is at the origin, find the magnitude of the net gravitational force on the mass
What is the little distance between the speakers for which the interference of the sound waves is destructive.
The combined mass of the professor and the chair is 90-kg. He is pushed 2.60-m along the incline by a group of students who together exert a constant horizontal force of 600-N. The professor speed at the bottom of the ramp is 1.75m/s. use the work..
A glass fiber of index 1.50 is used to transmit light but is submerged in water of index 1.33. What is the critical angle for light to stay inside the optical fiber
A 31.0 omegacap.gif resistor and an 16.0 omegacap.gif resistor are connected in series across a 15.0 V battery. What is the voltage out of the battery
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