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A spring is compressed by 0.0617 m and is used to launch an object horizontally with a speed of 2.58 m/s. If the object were attached to the spring, at what angular frequency (in rad/s) would it oscillate?
A plucked guitar string produces a sound wave of frequency 440 Hz. What is the wavelength of the sound wave
Light of wavelength 700 nm is incident on the face of a fused quartz prism (n = 1.458 at 700 nm) at an incidence angle of 72.4°. Calculate the angle of refraction at the first surface
A major artery has a cross sectional area of 1.07 cm^2. What is the average speed of blood flowing through the smaller arteries
q1. an 825-n sled is pulled a distance of 161 m. the task requires 1.50 104 j of work and is done by pulling on a rope
The car that hits a concrete barrier and takes 0.3 seconds to stop.
The drill used by most dentists today is powered by a small air-turbine that can operate at angular speeds of 320000 rpm. How many revolutions does the drill bit make
A slingshot will shoot a 10-g pebble 22.0 m straight up. With the same potential energy stored in the rubber band, how high can the slingshot shoot a 25- pebble
a 2. kg ball moving to the right with a speed of 25m/s collides with a 15. kg ball going in the same direction with the speed of 20 m/s. What is the speed of the second ball after collision if it travels in the same direction as before
You're using a rope to pull a sled at constant velocity across level snow,with coefficient of kinetic friction 0.050 between sled and the snow. With what force should you pull with the rope horizontal
A dolphin in an aquatic show jumps straight up out of the water at a velocity of 14.5 m/s. How high does his body rise above the water in meters
question1heather and mathew walk eastward with a speed of 0.76 ms east. if it takes them 50 minutes to walk to a store
A 14 liter tank of helium is at a pressure of 164 kPa at a temperature of 0 C, What is the speed of the helium atoms in the tank at this new volume, How many moles of helium are there in the tank
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