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If a roadway is banked at the proper angle, a car can round the corner without any assistance from friction. What is the appropriate banking angle if the speed is 20.5 m/s in a turn with a radius of 85.0 m?
A magnetic field is directed perpendicular to the plane of a 0.15-m × 0.30-m rectangular coil consisting of 240 loops of wire. To induce an average emf of –2.5 V in the coil, the magnetic field is increased from 0.1 T to 1.8 T through a time interval..
A block of mass 3kg is pulled along a flat surface with acord, which makes an angle of 250 above the horizontal.The tension in the cord is 16N, and the coefficient if kineticfriction between the block and the surface is 0.4. Dertermine the accelera..
an oxygen ion O2- is moving with a speed of 322 m/s in a direction perpendicular to a magnetic field of magnitude B, what is B
an experiment youre designing needs a gas with ? 1.45. you recall from your physics class that no individual gas has
A camera is equipped with a lens with a focal length of 30cm. when an object 2 m (200cm) away is being photographed; how far from the field should the lens be placed? What is the magnification?
Julie drives 100 mi to Grandmother's house. On the way to Grandmother's, Julie drives half the distance at 44.0, What is her average speed on the return trip
a golfer hits a shot to a green that is elevated 2.70 m above the point where the ball is struck. the ball leaves the
suppose a van de graaff generator builds a negative static charge and a grounded conductor is placed near enough to it
X rays with a wavelength of 0.18 nm undergo first-order diffraction from a crystal at a 74 degree angle of incidence
tarzan swings on a 30.0 m long vine initially inclined at an angle of 37.0o with the vertical.a sketch a diagram and
A 990-kg sports car collides into the rear end of a 2100-kg SUV stopped at a red light. The bumpers lock, the brakes are locked, What was the speed sports car at impact
A solid sphere starts from rest at the upper end of the track, as shown in figure below, and rolls without slipping until it rolls off the right-hand end. If H = 18.0 m and h = 1.0 m and the track is horizontal at the right-hand end, how far horizont..
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