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Why does the wavelength of light decrease when it passes from vacuum into a medium? State which attributes change and which stay the same and, thus, require the wavelength to decrease.
An initially neutral conductor contains a hollow cavity in which there is a -100 nC point charge. what is the charge on the inner wall of the cavity wall
A concave mirror has a focal length of 7 centimeter. Find the magnification of an object located 146 centimeter in front of this mirror
A 10uF capacitor is charged so that the potential difference between its plates is 10.0V. How much charge flows from one capacitor to the other when the capacitors are connected
A race track is to have a banked curve with radius250 m. What should be the angle of the bank if the normal force alone is to allow safe travel around thecurve at 59.5 m/s
An undamped 1.42-kg horizontal spring oscillator has a spring constant of 29.9 N/m. While oscillating, it is found to have a speed of 2.53 m/s as it passes through its equilibrium positio
At the instant of the figure, a 5.80 kg particle P has a position vector of magnitude 5.40 m and angle ?1 = 50.0° and a velocity vector of magnitude 1.10 m/s and angle ?2 = 30.0°. what are the magnitude of the torque acting on the particle
Two identical capacitors store different amounts of energy: capacitor A stores 2.2 x 10-3 J, Find the voltage across the plates of capacitor A
A 0.540 kg football is thrown with a speed of 15.5 m/s. What is the magnitude of the impulse delivered to the ball by the receiver
A simple pendulum has a length of 0.80 m and a bob of mass 0.20 kg. It is initially displaced to an angle of 18 degrees from the vertical, What angle does it make with the vertical
A cube of mass m = 7.55 kg is placed on an inclined plane of mass M = 12.67 kg, which makes an angle a = 52.40° with the horizontal. What is the normal force on the inclined plane from the table underneath it
a 100j of heat energy are transferred to 20g of mercury. by how much does the temperature increase?b how much heat is
q1. a boat with a flat bottom and its cargo weigh 6000n. the area of the boats bottom is 4m squared. how far below the
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