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Violet light falls on a surface with two small slits 1.9 x10–4 cm apart. A first-order line appears 13.2 cmfrom the central bright spot on a screen opposite the slits. Thedistance from the center of the slits to the first-order violetline is 60 cm. What is the wavelength of the violet light?
A propeller is modeled as five identical uniform rods extending radially from its axis. The length and mass of each rod are 0.859 m and 2.85 kg, respectively. When the propellor rotates at 567 rpm (revolutions per minute), what is its rotational kine..
A person on a rocket traveling at 0.50c (with respect to the Earth) observes a meteor come from behind and pass her at a speed she measures as 0.50c
When one mole of C6H6 is burned, 3.27 MJ of heat is produced. When the heat from burning 7.77 g of C6H6 is added to 5.69 kg of water at 21.0°C, what is the final temperature of the water?
if a 2.5 kg ball puts 118 joules of energy in a spring with a 614 n/m constant, how far is the spring compressed.
A battery of internal resistance r = 0.2 and emf E = 12.0 V. If the battery is charged by an external source with a charging current of 1.2 A. What is the potential difference across the battery
A car is traveling at 50.0 mi/h on a horizontal highway. If the coefficient of static friction between road and tires on a rainy day is 0.100, what is the minimum distance in which the car will stop
So a bike went 10m in 4 seconds and the acceleration was constant the whole way. What Was the instantaneous velocity at 5m? If it helps the whole race was 1000m
find the work done by the field on the electron. What is the change in potential energy associated with the electron.
A portable x-ray unit has a step-up transsformer, the 120 V input of which is transformed to the 100kV output needed by the x-ray tubr, what is the number of loops in the secondary
What is Horizontal angle of projectile
Planet X rotates in the same manner as the earth, around an axis through its north and south poles, and is perfectly spherical. How long is the day on Planet X
Ball 1, with a mass of 140g and traveling at 11.0m/s , collides head on with ball 2, which has a mass of 310g, What are the final velocities of each ball if the collision is perfectly inelastic
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