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Find the angle between the position vectors to the points (3, -4, 0) and (-2, 1, 0), and find the direction cosines of a vector perpendicular to both.
Electrons are accelerated through a voltage difference of 160 kV inside a high voltage accelerator tube. What is the final kinetic energy of the electrons?
Two astronauts floating at rest with respect to their ship in space decide to play catch with a3-kg asteroid. What is Joe's speed right after his first catch
The x position of (a) is 8.6 m. The y position of (b) is 8.68 m. The wave travels at a speed of 3.2 m/s. What is the amplitude of the wave?
The loaded cab of an elevator has a mass of 3x10^3 kg and moves 177m up the shaft in 23 s at constant speed. At what average rate does the force from cable do work on the cab.
UV light of wavelength 211 nm falls on a silver surface whose work function is 4.74 eV. Find the maximum speed of the photoelectrons emitted from the surface
An ac generator with a frequency of 1.44 kilohertz and an rms voltage of 24.2 volts is connected in series with a 1.90 kilo-ohms resistor and a 330 mega hertz inductor. What is the average power consumed by this circuit
What average force is required to stop an 1100-kg car in 8.0 seconds if the car is traveling at 95 km/h
the water level in a vertical glass tube1.50m long can be adjusted to any position in the tube. a tuning fork vibrating
an airplane propeller is rotating at 3293 rev/min when one of the blades breaks off at the hub. what is the angular velocity of the rotational motion of the blade about its own center of mass
Nonreflective coatings on camera lenses reduce the loss of light at the surfaces of multilens systems and prevent internal reflections that might mar the image. Find the minimum thickness of a layer of magnesium fluoride
A capillary tube is being used to measure the viscosity of a Newtonian liquid, Estimate the viscosity coefficient for the liquid if a pressure of 2.5 kPa is required to maintain a flow rate of 1 kg/s
questionat a construction site a 65.0 bucket of concrete hangs from a light but strong cable that passes over a light
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