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When empty, a particular helicopter of mass 3770 kg can accelerate straight upward at a maximum acceleration of 1.34 m/s2. A careless crewman overloads the helicopter so that it is just unable to lift off. What is the mass of the cargo?
A hammer is hung from a small hole in its handle, swung slowly to an angle of theta max = 0.1 radians and then released. Find the net torque on the hammer
Consider a 9.5-mm-diameter wire made from copper (mass density 8.9 g/cc, resistivity 1.7E-8 ohm-m). What is the electric field (in V/m) in the wire
A ball is tossed from an upper-story window of a building. The ball is given an initial velocity of 7.70 m/s at an angle of 21.0° below the horizontal. Find the height from which the ball was thrown
Bronco Brown is mowing his lawn. He applies a force F along the handle of the lawnmower as shown. Bronco moves the mower at constant velocity. What is the magnitude of the resistance force acting horizontally on the mower
A 700 N car traveling at 25m/s.The breaks are applied suddenly and the car slides to a stop. The average breaking force between the tires and the road is 7100 N.How far will the car slide once the breaks are applied.
question1a long straight wire has fixed negative charge with a linear charge density of magnitude 3.6 ncm. the wire is
q1. a 2.90-m-long 300 kg steel beam extends horizontally from the point where it has been bolted to the framework of a
A test charge of +2*10^-7 C is located 5cm to the right of a charge +1*10^-6 C and 10 cm to the left of a charge -1*10^-6 C. The three charges lie on a straight line
An 8.5- {rm kg} point mass and a 15- {rm kg} point mass are held in place 50- {rm cm} apart. A particle of mass m is released from a point between the two masses 19- {rm cm} from the 8.5-{rm kg} mass along the line connecting two fixed masses.
Two light sources are used in a photoelectric experiment to determine the work function for a particular metal surface. What stopping potential would be observed when using light from a red lamp
If the wavelength of a maximum intensity decreases from 1840nm to 1560nm as the bulb's voltage is increased, by how many celcius does the filament temperature increase
a monochromatic beam of light of wavelength 600nm is incident on a diffraction grating with a slit spacing of 1.7*10^-4cm
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