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at the equator the earths magnetic field has a direction horizontal with respect to the ground and toward the north
an airplane diving at an angle of 48ordm with the vertical release a projective at an altitude of 830m the projectile
a curve in a highway has radius of curvature 110 m and is banked at 33deg on a day when the road is icy what is the
objects that are at rest relative to earths surface are in circular motion due to earths rotation what is the radial
a small block with mass 00475kg slides in a vertical circle of radius 00710m on the inside of a circular track there is
sand from a stationary hopper falls onto a moving conveyor belt at the rate of dmdt 5 kgs as shown the conveyor belt
a mass m slides down a frictionless incline and then gently transitions into a rough horizontal surface as shown below
a basketball m 06 kg r 121 cm with a tennis ball m 006 kg r 325 cm directly on top of it is dropped from a height
a 4000-kg satellite is traveling in a circular orbit 200 km above the surface of the earth a 300-gram marble is dropped
a 392 m long rod has mass 104 kg which is uniformly distributed along the rod the rod is held in place by a
a potential dierence of 10 v is found to produce a current of 044 a in a wire of length 31 m with a uniform radius of
a small wooden block with mass 0750kg is suspended from the lower end of a light cord that is 160m long the block is
in an action-adventure film the hero is supposed to throw a grenade from his car which is going 940 kmh to his enemys
a biology student rides her bike around a corner of radius 25 meter at a steady speed of 82 msec the combined mass of
two dogs pull horizontally on ropes attached to a post the angle between the ropes is 607 degrees dog a exerts a force
a skier is gliding along at 30 ms on horizontal frictionless snow he suddenly starts down a 10deg incline his speed at
a skier starts from rest at the top of a frictionless incline of height 200 m as shown in the figure as the bottom of
an aluminum wire with a cross-sectional area of 39 x 10-6 m2 carries a current of 19 a find the drift speed of the
a object of mass 300 kg is subject to a force fx that varies with position as in the figure below find the work done by
calculate the resistance per unit length of a nichrome wire which has a radius of 0182 mm the resistivity of nichrome
a bead of mass m 690 kg is released from point a and slides on the frictionless track as shown in the figure below the
a 560-kg projectile is fired at an angle of 300deg above the horizontal with an initial speed of 124 102 ms from the
two crates connected by a rope of negligible mass lie on a horizontal surface create a has mass ma and crate has mb the
a car traveling at 30 ms runs out of gas while traveling up a 20deg slope how far up the hill will it coast before
150ml of water at 200c is placed in the freezer compartment of a refrigerator with a coefficient of performance of 600