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Using a grating with a spacing of 0.00046 cm, a line (which looks like red light) appears 27 cm from the central line on a screen. The screen is 1.9 m from the grating. What is the wavelength of the light? Answer in units of nm
Two charged bodies exert the force of 0.185N on each other. If they are moved so that they are one-fourth as far apart, what force is exerted.
A photographer in a helicopter ascending vertically at a constant rate of 12.5 m/s accidentally drops a camera out the window, How long will it take the camera to reach the ground
A 65.0 kg basketball player jumps vertically and leaves the floor with a velocity of 1.80 m/s upward. What impulse does the player experience
A car is moving down a street at 53 km/h. A child all of a sudden runs into the street. If it takes the driver 0.74s to react and apply the brakes, how many meters will the car have moved before it begins to slow down?
An electron on the axis of an electric dipole is 23 nm from the center of the dipole. What is the magnitude of the electrostatic force on the electron if the dipole moment is 4.0 10-29 C·m? Assume that 23 nm is much larger than the dipole charge sepa..
question1an airplane is flying horizontally with speed 1000 280 while an engine falls off. neglecting air resistance
The asteroid belt circles the sun between the orbits of Mars and Jupiter. One asteroid has a period of 4.0 earth years
The same voltage is applied between the plates of two different capacitors. When used with capacitor A, this voltage causes the capacitor to store 13, Determine qB
q1. a submarine is 306 m horizontally out from a shore and 120 m beneath the surface of the water. a laser beam is sent
How various kilograms of nitrogen are boiled away in time of 7.50 h. car that hits a line of water barrels and takes 1.8s to stop.
A car is travelling at 24 m/s while the driver spots a large pothole in the road a distance 35 m ahead. She immediately applies her brakes. If her acceleration is -4.30m/s2, does she manage to stop before reaching pothole? What is the stopping dis..
The potential difference between the surface of a 3.1 cm diameter power line and a point 1.8 m distant is 5.0 kV. What is the line charge density on the power line
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