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The minute hand of a wall clock measures14 cmfrom its tip to the axis about which it rotates. The magnitude and angle of the displacement vector of the tip are to be determined for three time intervals. What are the
(a) magnitude and
(b) angle from a quarter after the hour to half past, the
(c) magnitude and
(d) angle for the next half hour, and the
(e) magnitude and(f)angle for the hour after that? Give all angles as positive values measured counterclockwise from the +xdirection (to the right, or 3 o'clock).
A rock is thrown vertically up at 6.7 m/s. Has the rock made it to the highest point in the path
If the height of the candies in the container increases at the rate of 0.29cm/s, at what rate (kilograms per minute) does the mass of the candies in container increase.
A tennis ball is hit with a vertical speed of 30 m/s and a horizontal speed of 25 m/s. How long will the ball remain in the air? How far will it travel horizontally during this time?
A U-shaped pipe contains water and oil - water filling one arm of the U and oil filling the other. determine the density of the oil
Two identical small metal spheres are separated by 1.00 x 10^5 m and exert an 18.9 N repulsive force on each other, determine the charges of the spheres before the connection
A laser used to weld detached retinas emits light with a wavelength of 654nm in pulses that are 20.2ms in duration. How much energy is in each pulse
A 2.0 kg ball swings in a vertical circle on the end of an 80cm long string. Calculate the speed, magnitude and direction of acceleration
An aluminum bar has a length of 1.8 m and a rectangular cross section with sides of 3.4 mm and 7.0 mm. What is the strain for this value of the stretch
At time t = 0, a projectile is launched from ground level. At t = 2.00 s, it is displaced d = 56 m horizontally, what is its horizontal displacement D from the launch point
An airplane is flying horizontally with a speed of 1000 km/h(280m/s) when an engine falls off. avoid air resistance,assume it takes 30s for the engine to hit the ground.
Two metal spheres, each of mass 20 g and initially at rest, are dropped from a height of 10 m in an evacuated chamber. Find the difference in final speeds of the two spheres
In an integrated circuit, the current density in a 2.9 ??m?thick× 71 ??m?wide gold film is 7.7×105A/m2, How much charge flows through the film in 15 min
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