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1) Write each vector in terms of the unit vectors ^i and ^j.
2) Use unit vectors to express the vector C, where C = 3.00A - 4.00B.
3) Find the magnitude and direction of C.
An electric field of 6.70×105 V/m is desired between two parallel plates, Determine what charge must be on each plate
2 kg block slides on a rough horizontal surface. the block hits a spring with a speed of 2.4 m/s and compresses it a distance of 11 cm before coming to rest. what is the force constant of the spring
The refractive indices of materials A and B have a ratio of nA/nB = 1.66. What is the speed of light in material B
Nichrome wire of cross-sectional radius 0.754 mm is to be used in winding a heating coil. find the length of wire you must use to wind the coil
As a sailboat sails 58.5 m due north, a breeze exerts a constant force F1 on the boats sails. This force isdirected at an angle west of due north. A force of F2 of the same magnitude directed due north would do the same amount of work on a sail boat..
A skateboarder, with an initial speed of 5.0 m/s, rolls virtually friction free down a straight incline of length 19 m in 3.3 s. What is the angle of the incline
In the Challenger Deep of the Marianas Trench, the depth of seawater is 10.9 km and the pressure is 1.16 x 10^8Pa (about 1.15 x 10^3 atm). What is the density of seawater at this depth
A 29 g rifle bullet travelling 270 m/s buries itself in a 3.50 kg pendulum hanging on a 2.6 m long string, which makes pendulum swing upward in an arc. Find out the horizontal component of the pendulum's displacement.
There are two identical, positively charged conducting spheres fixed in space. The spheres are 48.8 cm apart (center to center) and repel each other with an electrostatic force of F1 = 0.0795 N. Then, a thin conducting wire connects the spheres, redi..
The driver of a 1800 {rm kg} car travelling on a horizontal road at 100 {rm km}/{rm h} suddenly applies the brakes. Because of a slippery pavement, the friction of the road on the tires of the car, which is what slows down the car, is 20.0% of the..
A stretched string of length L is observed to vibrate in six identical segments when driven by a 600 Hertz oscillator. Find what oscillator frequency will set up a standing wave
A string with both ends held fixed is vibrating in its third harmonic. The waves have a speed of 193m/s and a frequency of 240 Hz . The amplitude of the standing wave at antinodes is 0.440cm.
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