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A uniform piece of aluminium is 4m by 4m and 2cm thick. A 1m by am square piece is cut out from it. The center of the cutout piece is at the coordinate (1,2) in meter. Calculate the x coordinate of the center of mass.
A 5.00-g lead bullet traveling at 300 m/s is stopped by a large tree. If half the kinetic energy of the bullet is transformed into internal energy and remains with the bullet while the other half is transmitted to the tree, what is the increase in te..
A car is traveling down around a banked curve in the road. Thecurve has a radius of 300 m and is banked at an angle of10.0o. (a) At what speed is no friction required?
when light of wavelength 300 nm is incident upon potassium the emitted electrons due to the photoelectric effect have a
A space traveller weighs herself on Earth, at a location where the acceleration due to gravity is 9.82 m/s2, and finds a value of 599 N. What is the traveller\'s mass on the planet
Prior to the music CD, stereo systems had a phonographic turntable on which vinyl disk recordings were played. calculate the total number of rotations for the complete start-up
Emily has a field with uniformly cut grass of height 2 cm which grows at a constant rate. How long would it sustain each animal alone
ben lets his toys slide down a 1.5m ramp at a 45 degree angle in a wooden box. the box starts out at rest and speeds up
A 900 line/mm diffraction grating is illuminated by light of wavelength 600 nm. How many bright fringes are seen on a paper 0.20-m-wide screen located 0.5 m behind the grating? ( Hint: assume fringe , m=0 is at the center of the paper; hence, you ..
A young girl with mass 35.5kg is sliding on a horizontal, frictionless surface with an initial momentum that is due east and that has magnitude 86.0kg?m/s, How much work has been done on the girl by the force in the time interval from t= 0s to the ..
A 10 gauge copper wire carries a current of 27 A. Assuming one free electron per copper atom, calculate the drift velocity of the electrons
As a result of the friction of tides, the earth rotates more slowly as time progresses. What is the torque(N*m) acting on the earth
As a crude model for lightning, consider the ground to be one plate of a parallel-plate capacitor and the cloud to be the other plate, What is the capacitance of the system
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