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You place a 7.73-mm-high chocolate chip on the axis of and 12.7 cm from a lens with focal length 5.45 cm. If it can be determined, is the chocolate chip's image real or virtual? How high is the image (expressed as a positive quantitiy)?
A point charge +6.7 uC is placed at the origin, and a second charge -3.6 uC is placed in the X - Y plane at (0.40 m , 0.55 m ). Where should a third charge be placed in the plane so that the net force acting on it is zero? Express your answers usi..
What is the velocity of each ball. while both pipes vibrate at their fundamental frequencies, a beat frequency of 15 Hz is heard. How many centimeters were cut off the end of the second pipe? The speed of sound is 343 m/s.
A bullet shot straight up into the air returns to it's starting point in 10 seconds. What is the initial speed of the bullet
A certain part of aircraft engine has a volume of 1.3ft3. Find the weight of the piece when it is made of iron
A small grinding wheel has a moment of inertia of 4.0×10?5. What net torque must be applied to the wheel for its angular acceleration to be 150
A system consisting entirely of electrons and protons has a net charge of 1.64×10?15C, How many electrons and protons are in this system
Two point charges 2.0cm apart have an electric potential energy -400?J . The total charge is 25nC, What is the lesser and larger charge
A person cooks a meal in a 30-cm-diameter pot that is covered with a well-fitting lid and lets the food cool to the room temperature of 20°C. The total mass of the food and the pot is 8 kg.
Assume the helmholtz coil consists of two sets of coaxial wire loops with 15 turns of radius R=75.00 cm, that are separated by R, and each coil carries the current 0.123A flowing in the same direction. Compute the magnitude and direction of magnetic ..
a parallel-plate capacitor has an area of 4.00 cm2 and the plates are separated by 1.00 mm with air between them. the
A 0.20 kg mass at an angle of 40 degrees and a 0.275 kg mass at an angle of 155 degrees. Determne the net force of the two know masses
Mounted on a low mass rod of length 0.44 m are four balls. Two balls each of mass 0.89kg, are mounted at opposite ends of the rod. Two other balls, What is the angular speed of the rotating device
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