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A uniform board with a length of 1.2 m and mass 5 kg is placed on two scales as show below A weight W with mass 20kg is placed on the board 20 cm from it center. Each balance is located 10cm from the end of the beam. What are the readings (in Newtons or in kg) on the left and right balance?
A double-slit interference pattern has a fringe (a “fringe” is an interference maximum) spacing of 4.0 mm. How far from the central maximum is the first position at which the intensity is equal to I1, the intensity due to each individual slit? In thi..
The length of the mercury column at the ice point and steam point are 5.0 cm and 40.0cm respectively. What is the temperature of the liquid
a 25 kg box is acted on by a 45 n horizontal force. if the box accelerates at a rate of .75 ms2 what is the coefficient
all the data for this problem come from a conservative dialect of vegraveneto a romance language spoken in northern
The electric field midway between two equal but opposite point charges is 745 N/C, What is the magnitude of the charge on each
A 100 percent efficient electric motor is lifting a 15N weight at 25cm/s. If the motor is connected to a 7V battery, how much current does it draw.
A screen is situated 10m from the slits, where a pattern of bright and dark fringes are observed. As measured from the center 0th order fringe, what is the distance to the first dark fringe in micrometers?
What is the work done by the centripetal force on an object with a mass of 2 kg moving with a constant velocity of 3 m/s into a circular path of radius 0.5 m for one full cycle?
1. explain why you are safe and unaffected inside a car that is struck by lightning. also explain why it might not be
Find the image distance and magnification of the mirror in the sample problem when the object distances are 10.0 cm and 5.00cm. Are the images real or virtual
A box of mass m that was sliding along the floor, hits an incline plane and slides up the inclined plane with angle theta at a velocity v0. Find an expression for the maximum height, h, above the floor that the box reaches.
The ballistic pendulum is a device used to measure the speed of a projectile, such as a bullet. calculate the speed immediately after collision
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