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The light shining on a diffraction grating has a wavelength of 490 nm (in vacuum). The grating produces a second-order bright fringe whose position is defined by an angle of 9.85°. How many lines per centimeter does the grating have?
An RL series circuit has R = 80.0? and L = 1.95mH . The series combination is connected across a 165V (rms), 63Hz power supply. Find the peak current
A student throws a set of keys vertically upward to his fraternity brother, who is in a window 3.60 m above. The brother's outstretched hand catches the keys 1.20 s later.
which of the following statements about the speed and acceleration of the cart just before the counterweight hits the
a projectile with mass of 346 kg is launched straight up from the earths surface with an initial speed vi. what
What is the average speed of a rider on this Ferris wheel.
A box is on the back of a truck, the truck is moving at 72.0 km/h along a level road. what is least distance that the truck can stop in without the box sliding
The electric motor of a model train accelerates the train from rest to 0.640 m/s in 22.0 ms. The total mass of the train is 530 g. Find the average power delivered to the train during its acceleration.
A point charge causes an electric flux of -735 N-m2/C to pass through a spherical Gaussian surface of 13.4 cm radius centered on the charge. how much flux would pass through the surface
A 9300 kg boxcar travelling at 23 m/s strikes a second boxcar at rest. The two stick together and move off with a speed of 15 m/s. What is the mass of the second car.
In 1851 Jean Bernard Leon Foucault demonstrated the rotation of the Earth using a pendulum 11.0 m long, What was the period of oscillation of the pendulum
A bicycle tire with a radius of 0.42 m has a linear velocity of 2.6 m/s and an tangential acceleration of - 1.0 m/s2. What is the angular velocity of the tire
q1. a ford mustang can accelerate from 0 to 60 in a time of 5.4. a mini cooper isnt capable of such a rapid start but
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