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A laser beam of wavelength 680 nm shines through a diffraction grating that has 750 lines/mm and observed on a screen 1.4 m behind the grating.
How many bright fringes can be observed on a screen?
What is the distance between the two m=1 fringes?
The rotation of a cylinder is slowed from an initial angular velocity of 3.40 rad/s to a final angular velocity of 2.00 rad/s during 20.0 revolutions at constant angular acceleration. What is the constant angular acceleration during this decrease ..
A shoe store uses small floor-level mirrors to let customers view prospective purchases. At what angle from vertical must such a mirror be inclined so that a person standing 59 from the mirror with eyes 142 off the floor can see her feet.
An electron is confined to a box size of a small atom, 0.10 nm across. What's the uncertainty in the electron's momentum
a screen is placed 1m from a single slit which is illuminated with 690 nm light. the slit width is 0.1 mm. what is the
question a space station is shaped like a ring and rotates to simulate gravity. if the radius of the space station is
An electron travels with speed 1.0*10^7 m/s between two parallel charged plates. The plates are separated by 1.0 cm, What is the direction of the magnetic field
question1a place kicker must kick a football from a point 33.0 m about 36 yd from the goal. as a result of the kick
An electron is placed in a uniform electric field of strength 210 N/C. If the electron is at rest at the origin of a coordinate system at t = 0 and the electric field is in the positive x-direction
A laser emits 7.50 × 1017 photons per second in a beam of light that has a diameter of 1.89 mm and a wavelength of 514.5 nm. determine the average electric field strength
A 0.50-kg mass attached to the end of a string swings in a vertical circle (radius = 2.0 m). When the mass is at the lowest point on the circle, the speed of the mass is 12 m/s. What is the magnitude of the force of the string on the mass at this pos..
A 1.50-kg iron horseshoe initially at 670°C is dropped into a bucket containing 22.0 kg of water at 26.0°C. What is the final temperature of the water–horseshoe system? Ignore the heat capacity of the container and assume a negligible amount of water..
After catching the ball, Sarah throws it back to Julie. The ball leaves Sarah's hand a distance 1.5 meters above the ground, What is the speed of the ball when it leaves Sarah's hand
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