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The bolts on the cylinder head of an engine require tightening to a torque of 92 m·N. If a wrench is L = 30 cm long, what force perpendicular to the wrench must the mechanic exert at its end? If the six-sided bolt head is 15 mm in diameter, estimate the force applied near each of the six points by a socket wrench (Fig. 8-41).
A parallel-plate air-filled capacitor having an area 50 cm^2 and plate spacing 0.5 mm is charged to a potential difference of 500 V. Find a.) capacitance,b.)the magnitude of the charge on each plate,c.)the stored energy, d.)the electric field betw..
The Gravitron is an amusement park ride in which riders stand against the inner wall of a large spinning steel cylinder. At some point, What is the maximum rotational speed at which the riders will not slide up the walls of the ride
Visible light passes through a diffraction grating that has 900 slits per centimeter, and the interference pattern is observed on a screen that is 2.46m from the grating. What is the difference between these wavelengths
You would like to shoot an orange out of a tree with your bow and arrow. The orange is hanging 5.00 m above the ground. What is the height of the arrow above the ground once it has travelled the 43.0 m horizontally
Most of the blackholes observed by astronomers have masses equal to a few solar masses (the result of the death of a high mass star) or have masses equal to several million solar masses
A car is traveling at 10 m/s. How fast would the car need to go to double its kinetic energy? By what factor does the car's kinetic energy increase
You are 1.5 m tall and you are standing 2.0 m away from a flat mirror. The Top of the mirror is at the same level as the top of your head. How large is the mirror
A 620 g basketball is pushed up a 30° ramp. The ball starts from rest and the length of the surface of the ramp is 5 m. What was the magnitude of the pushing force (in N)
Electrons with a speed of 1.6×10^6m/s pass through a double-slit apparatus. What speed must neutrons have to produce interference fringes with a fringe spacing of 1.6mm
You are given a spherical mirror and wish to determine its properties. You place an object on its axis, Find the mirror\'s focal length
A uniform metal rod, with a mass of 3 {rm kg} and a length of 1.2 {rm m}, is attached to a wall by the hinge at its base. A horizontal wire bolted to the wall 0.51 m above the base of the rod holds the rod at an angle of 25{rm ^circ} above the hor..
If the speed of sound is 1100 feet per second and a tuning fork oscillates at 440 cycles per second, what is the wavelength of sound produced.
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