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Assume that while moving into an apartment you move a refrigerator into place by sliding it across the floor. The refrigerator weighs 1452 N and the coefficient of static friction among the floor and the refrigerator is 0.46. What is the least force you could exert on the refrigerator to move it?
an electric field does 9.36 mev of work in moving a very small charged particle through a potential difference of
A uniform disk of radius 0.495 m and unknown mass is constrained to rotate about a perpendicular axis through its center. Find the mass of the disk
A green hoop with mass mh = 2.7 kg and radius Rh = 0.17 m hangs from a string that goes over a blue solid disk pulley with mass md = 2.3 kg and radius Rd = 0.09 m. The other end of the string is attached to a mass less axel through the center of an o..
An airplane has an effective wing surfacearea of 10 m2 that is generating the lift force. What is the weight of the plane
A loudspeaker emits energy at the rate of 53W, What is the intensity of sound 19m from the speaker
A plane, diving with constant speed at an angle of 52.0 degree with the vertical, releases a projectile at an altitude of 790 meter. Compute how far did the projectile travel horizontally during its flight
Two equal, but oppositely charged particles are attracted to each other electrically. evaluate the magnitude of the charges
The overall length of a piccolo is 32.0 cm. The resonating air column vibrates as in a pipe that is open at both ends. Find the frequency of the lowest note a piccolo can play
An object (A) of mass 0.1 kg strikes a second objects (B), of mass0.3 kg that is initially at rest. Mass A has an initial velocity of+ 2 m/s. Suppose that the collision is entirely elastic. Compute and describe the final velocities for the two object..
a 730.0 n man carrying a 1.9 kg physics textbook stands at the center of a frozen pond of radius 10.0 m. he is unable
Two resistors are connected in series to a battery with an emf of 12 V. The voltage across the first resistor is 2.9V and the current through the second resistor is 0.13A. Find the resistance of the second resistor
The wheel of a car has a radius of 0.360 m. The engine of the car applies a torque of 426 N·m to this wheel, What is the magnitude of the static frictional force
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