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Q1. A man pushes the lawn mower on a level lawn with a force of 240 N. If 40 percent of this force is directed downward, how much force is directed horizontally?
Q2. Two conducting wires a and b of circular cross-section have the same length and radii but are made from different metals. The resistivity of wire a is twice that of wire b. When these two wires are connected in equivalent to the same battery, describe the reasoning of the steps that allow you to find out which of these wires will consume the greater amount of power by warming up and dissipating this energy as heat.
A gymnast of mass 56.0 {rm kg} hangs from a vertical rope attached to the ceiling. You can ignore the weight of the rope and assume that the rope does not stretch. Use the value 9.81 {rm m/s^2} for the acceleration of gravity.
How long did it take the apple to hit Newton after falling off? Draw a graph of velocity vs
What is the minimum coefficient of friction that will prevent sliding. What should be the highest speed of the car so it can round the curve safely.
What is the caused by sun wind in upper atmosphere
A 3.10-m-long, 310 kg steel beam extends horizontally from the point where it has been bolted to the framework of a new building under construction. A 73.0 kg construction worker stands at the far end of the beam. What is the magnitude of torque abou..
Coefficient of kinetic friction between tires and road
Two boats start together and race across a 62-km-wide lake and back. Boat A goes across at 62 km/h and returns at 62 km/h. Boat B goes across at 31 km/h, and its crew, realizing how far behind it is getting, returns at 93 km/h.
Compute the acceleration of each box decide maximum distance the car rolls up the hill
What is current temperature and peak wavelength What is the proper description of their situation
What is the angular acceleration
The stirrer is used to stir the mixture until it reaches its last equilibrium temperature of 32°C. Analyse the mass of the aluminum cup.
An astronaut travels to an alternate universe that contains infinite charged plane and no other charged objects. The astronaut observes that the electric field in this universe has a magnitude of 1.20 N/C everywhere and points directly away from the ..
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