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You are mowing your grass with an electric lawn mower. As you move to taller grass the lawn mower blade slows down. What happens to the current and voltage going to the lawn mower when you move from shorter grass to taller grass?
question an electron in the beam of a typical television picture tube is accelerated through a potential difference of
(a) Calculate the number of electrons in a small, electrically neutral silver pin that has a mass of 12.0 g. Silver has 47 electrons per atom, and its molar mass is 107.87 g/mole. (b) Imagine adding electrons to the pin until the negative charge h..
The length of a simple pendulum is 0.79 m, and the mass of the bob at the end of the cord is 0.24 kg. What is the angular frequency of the motion
Shamu weighs 10000 lbs. on earth. What is Shamu's mass (in kg) on Earth, What is shamu's mass (in kg) on the moon
A car accelerates uniformly from rest and reaches a speed of22.9m/s in8.95s. Assume the diameter of a tire is58.3cm. What is the final angular speed of a tire in revolutions per second
Using a twine with a density of 0.002 kg/m and a curved rod with a space of 1 m between the ends, describe how you would produce a frequency of 256 Hz using these items. (include any technical information such as forces, lengths, etc...)
An electron close to a large, flat sheet of charge is repelled from the sheet with a 2.2pN force. Find the surface charge density on the sheet
H-F molecule has spring constant of 970 N/m. Assume that an H-F chemical laser, which lases betwee vibrational states of the H-F molecule, how many photons per seconde does it emit
An asteroid of mass 59,000 kg carrying a negative charge of 12.0 μC is 170 m from a second asteroid of mass 58,000 kg carrying a negative charge of 15.0 μC
A laser beam with vacuum wavelength 600 nm is incident from air onto a block of glass. find the wavelength of the light in glass
A 4 kg box is raised from rest adistance of 6 m by a vertical force of110 N. Find the final kinetic energy of the box
A light bulb operating at 110V draws 1.82A. Determine its resistance and the amount of power it draws
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