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Light with a wavelength of 370 nanometer shines on a metal surface, which emits electrons. The stopping potential is measured to be 1.06 Volt, Determine the work function.
A spherical wave with a wavelength of 1.66 m is emitted from the origin. At one instant of time, the phase at r=2.58 m is π radians. At that instant, what is the phase of r=4.22 m?
How does the mass and electric charge of a proton compare with the mass and charge of an electron?
your eye diameter 2.5 cm is able to focus the image of a tree on your retina. the tree is 24 m tall and 85 m away. what
A top is a toy that is made to spin on its pointed end by pulling on a string wrapped around the body of the top. What is the final angular velocity of the top when the string is completely unwound
The centers of a 11.0kg lead ball and a 150g lead ball are separated by 7.00cm. What gravitational force does each exert on the other
a charge is accelerated from rest through a potential difference and then enters a uniform magnetic field oriented
A spring is 17.0 cm long when it is lying on a table. One end is then attached to a hook and the other end is pulled with a force that increases to 25.0 N, causing the spring to stretch to a length of 19.2 cm. How long will the spring be if the 25.0 ..
A point source of light is 86.3 cm below the surface of a body of water. Find the diameter of the circle at the surface through which light emerges from the water
A rotating wheel requires 3.03 sots rotate through 37.0 revolutions. Its angular speed at the end of the 3.03 s interval is 98.6 rad/s. What is the constant angular acceleration of the wheel?
q1. as part of a safety investigation two 1300kg cars traveling at 18ms are crashed into different barriers. find out
A coil has an inductance of 0.45 H and a resistance of 42 ohms. The coil is connected to a 5.6 V ideal battery. At what rate is the energy being dissipated
an 80 kg person in outer space is at rest when he catches a 10 kg asteroid moving at 15ms. what is the final velocity
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