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A 2.0 meter long string that has a mass of 24.0 grams is under 45 N of tension. A sinusoidal wave with an amplitude of 4.0 cm and a wavelength of 1.6 m travels along the string. What is the maximum speed of a particle on the string?
A 1000 watt hair dryer is connected to 120 V source. Find the current drawn by the hair dryer
When you look at a clock on a space ship zooming by you at a fair fraction of the speed of light, What does the driver of the space ship see
A car with 60 cm diameter tires is traveling at a constant speed of 100 km/hr. What is the angular velocity of the tires in rad/s
Light of wavelength 500 nm illuminates a 0.5 mm diameter hole. A screen is placed 6.0 m behind the slit. What is the width of the central maximum on the screen in mm
An electron is at rest just above the surface of a sphere with the radius of 1.90 mm and a uniformly distributed positive charge of 2.1 x10-15 C.
You send a beam of light from a material with index of refraction 1.21 into an unkown material. find the index of refraction of the unknown material
To make a simple microscope a student places two converging lenses of +20 D at opposite ends of a 34 cm long tube. What is the tube length of the microscope
The maximum speed of a 4 kg mass attached to a spring is 0.68 m/s, and the maximum force exerted on the mass is 12 N. What is the frequency of this system
A spring with spring constant k=30 is compressed a distance of0.2 meters and shoots a 0.1kg block across a frictionless surfaceand up a ramp. To what height does the block rise before it slidesback down the ramp?
An air-filled toroidal solenoid has a mean radius of 14.0cm and a cross-sectional area of 6.80cm2. How many turns does the winding have
A solid, uniform, spherical boulder (I=2/5 MR^2) starts from rest and rolls down a hill. The top 1/4 of the hill is rough enough to cause the boulder to roll without slipping, How high is the hill
the parallel-plate capacitor used on each key of a computer keypad is a square 0.5 cm on a side. between the plates is
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