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Stan accelerates from a standing start at 2 m/s2 and one second later Kathy accelerates from a standing start at the same position at 4 m/s2. (a) How long does it take Kathy to catch Stan? (b) What is Kathy's displacement when she catches Stan? (c) What is the speed of each car when Kathy catches Stan?
Compute the net electric flux through the hull of the submarine. Is the number of electric field lines leaving the submarine greater than, equal to, or less than the number entering it?
A certain cylindrical drum is 3 meters in height. It filled with with water. Atmospheric pressure is 10^5 Pa, and the density of water is 1000 gl/m^3. What is the water pressure at the bottom of the barrel
A can of sardines is made to move along an x axis from x = 0.46 m to x = 1.20 m by a force with a magnitude given by F = exp(-5x), How much work is done on the can by the force
A 0.5kg mass is attached to a spring of spring constant 20N/m along a horizontal frictionless surface. what is amplitude of vibration
A gymnast does a one-arm handstand. The humerus, which is the upper arm bone (between the elbow and the shoulder joint), What is the compressional strain of the humerus
A capacitor can be made from two sheets of aluminum foil separated by a sheet of waxed paper. what is the capacitance of this capacitor
A resistor with R = 2.4 k? is connected to an AC generator that operates at 60 Hz with an amplitude of 41 V. Find the amplitude of the current through the resistor
Unpolarized light with an intensity of 980 W / m2 is incident on a polarizer with an unknown axis. What is the angle between the axes of the polarizers
questionthough 0 is often referred to as lower threshold of human hearing it is important to realize that the human ear
A steel ball of mass 0.400 kg is fastened to a cord that is 60.0 cm long and fixed at the far end. The ball is then released when the cord is horizontal. Find the speed of the block just after collision
In an X ray scattering measurement the first order diffraction peak is observed at angle 1= 17.4 deg. What is the angle of the third order peak
A 1.5-kg playground ball is moving with a velocity of 3.0 m/s directed 30° below the horizontal just before it strikes a horizontal surface. find the magnitude of the average resultant force on the ball
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