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A bird flies 3.0 km due East then 2.0 km due north. Another bird flies 3.0 km due West and 2.0 km due north. What is the angle between the net displacement vectors for the two birds?
a particle that carries a net charge of -41.8 ?c is held in a region of constant uniform electric field. the electric
A particle with a charge of 18.2 mC moves along the x-axis with a speed of 49.2 m/s. It enters a magnetic field given with vector B = 0.321 y(hat)+ 0.723 z(hat), in teslas. Decide the magnitude of the magnetic force on the particle.
A 8.7 V battery is connected to a 6.4 pF parallel-plate capacitor. What is the magnitude of the charge on each plate
Suppose a glob of chew-ing gum and a small, rubber ball collide head-on in midair and then rebound apart. Would you expect kinetic energy to be con-served? If not, what happens to the energy?
A certain automobile engine delivers 2.54 ? 104 W (34.0 hp) to its wheels when moving at a constant speed of 25.0 m/s ( 56 mi/h)
In a double-slit experiment, the slit separation d is 13.0 times the slit width w. How many bright interference fringes are in the central diffraction envelope
A solid cylinder of mass 14.0 kg rolls without slipping on a horizontal surface. At the instant its center of mass has a speed of 3.0 m/s, determine the translational kinetic energy of its center of mass.
Carbon nanotubes are one of the stiffest and strongest materials known to scientists and engineers. Carbon nanotubes have an elastic modulus of 1100 GPa. If a carbon nanotube has a diameter of 15nm, determine the engineering stress sustained by th..
A spring of constant k=3 lb/in. is attached to end A in such a way that its tension is zero when θ =- 0. If the rod is released from rest θ=0°, determine the angular velocity of the rod and the velocity of end B when θ = 0.
A small block with a mass of 0.170 kg is attached to a cord passing through the hole in a frictionless, horizontal surface .The block is initially revolving at a distance of 0.50 m from the hole with a speed of 0.80 m/s. The cord is then pulled from ..
A laser peripheral iridotomy is a procedure for treating an eye condition known as narrow-angle glaucoma, in which pressure buildup in the eye can lead to loss of vision. How many photons does the laser deliver
A helicopter is ascending vertically with a speed of 5.20m/s. at a high of 125m above the earth, a package i dropped from a window. How much time does it take for the package to reach the ground? (Hint: the package's initial speed equals helicopte..
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