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when at rest a proton experiences a net electromagnetic force of magnitude 94 x 10-13 n pointing in the positive x
a single-turn current loop carrying a current of 567 a is in the shape of a right triangle with sides 628 114 and 130
a ray of light strikes a plane mirror at a 45deg angle of incidence the mirror is then rotated by 23deg in the
a cowboy at a ranch fills a water trough that is 11 m long 68 cm wide and 44 cm deep he uses a hose having a diameter
an empty rubber balloon has a mass of 00109 kg the balloon is filled with helium at a density of 0178 kgm3 at this
a 1500 kg vehicle is making a circular turn on a flat roadway the road has a radius of curvature of 50m and the static
engineers have developed a bathyscaph that can reach ocean depths of 53 mi if the density of seawater is about 1030
a piston a has a diameter of 076 cm as shown a second piston b has a diameter of 21 cm in the absence of friction
a puck on a horizontal frictionless table is attached to a string that passes through a hole in a table initially the
a pencil 157 cm long is released from a vertical position with the eraser end resting on a table the eraser does not
a solid sphere and a solid cylinder of the same mass and radius roll without slipping at the same speed it is correct
an object weighing 32 lb is released from rest 50 ft above the surface of a calm lake before the object reaches the
an electric fan is running on high after the low button ispressed the angular speed of the fan decreases to 838 rads
an automatic drier spins wet clothes at an angular speed of 52rads starting from rest the drier reaches its operating
a bullet of mass 50 g is fired horizontallyinto a 23 kg wooden block at rest on a horizontal surface the coefficient of
a woman is 16 m tall and has a mass of 53 kg she moves past anobserver with the direction of the motion parallel to her
a 750kg skier rides a 2830m long lift to the top of a mountainthe lift makes an angle of 146o with the horizontal what
the space between two concentric conducting spherical shells ofradii b 170 cm and a 120 cm is filled witha substance
a plane is pointed in the positive x direction andis flying with an speed of 200 0 0 ms relativeto the air however due
your projectile launching system ispartially jammed it can only launch objects with an initialvertical velocity of 420
to basketball player bounces the 060-kg basketball to anotherplayer by bouncing it off the court the ball hits the
a 262-kg dog is running northward at 305ms while a 530-kg cat is running eastward at 353 ms their 693-kg ownerhas the
four equal masses m are placed at equal intervals l along a horizontal straight rod whose mass can be ignored the
a stone is dropped from rest into a well the sound of the splashis heard exactly 200 slater find the depth of the well
a firm wants to determine the amount of frictional torque intheir current line of grindstones so they can redesign them