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The distance between slitsin a double-slit experiment is decreased by a factor of 2. If the distance between fringes is small compared to the distance from the slits to the screen, the distance between adjacent fringes near the center of the interference pattern _______.
decreases by a factor of2increases by a factor of4decreases by a factor of4increases by a factor of2
q1. a 2.2 kg ball is shot straight upward into the air with an initial speed of 7.8 ms. the ball is fired from the
A resistor and an inductor are connected in series across an AC voltage source oscillating at 60 Hz. What is the rms voltage of the source
The National Aeronautics and Space Administration (NASA) studies the physiological effects of large accelerations on astronauts. At what speed must the chamber move so that an astronaut is subjected to 2.48 times the acceleration due to gravity
Your forehead can withstand a force of about 6.0kN before fracturing while your cheekbone can only withstand about 1.3 kN. what is the magnitude of the balls deceleration
An electron moving at 3.60 103 m/s in a 1.10 T magnetic field experiences a magnetic force of 1.40 10-16 N. What angle does the velocity of the electron make with the magnetic field? There are two answers between 0° and 180°. 1 ° (smaller value) 2 ° ..
It bounces off with the same speed and angle. If the ball is in contact with the wall for 0.151 s, illustrate what is the average force exerted by the wall on the ball?
A 2.5 mol sample of helium gas initially at 300 K and 0.400 atm is compressed isothermally to 1.30 atm. Note down that the helium behaves as an ideal gas.
A cylinder of a car's enginehas a volume of .725 L when the piston is at the bottom of the cylinder.When the piston is at the top of the cylinder it has a volume of 0.050 L.If the cylinder is filled with air at a pressure of 1 atm when the pistonis a..
A ten pound car wheel has a moment of inertia of 0.38 kg m2. While rotating at a constant speed the wheel makes 35.64 revolutions in 5.5 s
Ball 1, with a mass of 150g and traveling at 10.0m/s , collides head on with ball 2, which has a mass of 300g and is initially at rest. What are the final velocities of each ball if the collision is perfectly elastic? What are the final velocities of..
A major leaguer hits a baseball so that it leaves the bat at a speed of 28.0 m/s and at an angle of 35.3 degrees above the horizontal. Calculate the vertical component of the baseball's velocity
An electric field of 9.50 105 V/m is desired between two parallel plates, each of area 44.5 cm2 and separated by 2.45 mm of air. What charge must be on each plate
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