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A guy pushes a lawn mower on a level lawn with a force of 201 N. If 44% of this force is directed downward, how much power does he disburse in pushing the mower 6.5 m in 17 s?
Burglars are trying to push a 1000 kg safe up a 20o frictionless ramp with a horizontal force of 4000N. What is Burglars are trying to push a 1000 kg safe up a 20o frictionless ramp with a horizontal force of 4000N. What is the safe's acceleration up..
What is the energy of 2.0mol of photons that have a wavelength of 4.5μm
q1. an electron moves through a uniform magnetic field given by bx 3.00 bx. at a particular instant the electron has
A parallel-plate air capacitor is to store charge of magnitude 290pC on each plate when the potential difference between the plates is 36.0V, If the area of each plate is 6.80 cm2, what is the separation between the plates
A very long solenoid of radius a and height h has N closely wound turns of coil. Suppose there is an increasing current I(t) that runs through the coils. Consider a point P inside the solenoid (i.e. at r
The mass of the proton is mp= 1.67 x 10 (negative 27)kg and the mass of the proton me= 9.11 x 10 (negative 31)kg. The charge on the proton is +e, and the charge on the electron is , where e= 1.60 x( negative 19) C. What is the Coulomb force betwee..
An electron is free move only along the x axis and is attracted to x=0 by harmonic potential with angular frequency of 1.9 eV/h. What is the lowest energy the electron can have
An iceboat is at rest on a frictionless frozen lake when a sudden wind exerts a constant force of 140 Newton, toward the east, on the boat. Find the kinetic energy of the iceboat at the end of that 6.6 meter
astronomers are proud of their telescopes and often say they resolve a dime at so many miles. how many miles can you
A runner with the weight of 686.7 N accelerates at a constant rate from 0 to 45 m/s in the first 2 seconds of a 100 m sprint. What is the net force
A spaceship is flying directly away from Earth at a speed of 0.730c, and the captain's family at home on Earth broadcasts their well wishes on the Family Radio System frequency of 462.5625 Mhz.
two parallel metal plates have area a 255 cm2 and are separated by l 0.50cm. they have a potential difference of 0.25
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