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Q1. A big olive (m = 0.082 kg) lies at the origin of a xy coordinate system, and a big Brazil nut (M = 0.50 kg) lies at the point (0.92, 2.1) m. At t = 0, a force o = (3.5 + 1.6) N begins to act on the olive, and a force n = (-3.9 -3.0) N begins to act on the nut. What is (a) x and (b)y displacement of the center of mass of olive-nut system at t = 5.1 s, with respect to its position at t = 0
Q2. The G string of a guitar which should be 397 Hz is playing flat at 380 Hz. What percentage change in the tension of the wire is necessary so as to tune the string to 392 Hz?
How do you establish the value of theta
The basic concepts in optics.
Estimation instantaneous rate of evaporation
A proton starting from rest is accelerated in a cyclotron to a speed of 3.0•106 m/s. Find the work done on a proton by the electrical force of the cyclotron.
Examine whether it is reasonable to ignore the effects of gravity for each particle. Evaluate the paths travelled by electron and proton and explain the differences.
A converging lens (f = 13.0 cm) is held 6.20 cm in front of a newspaper, the print size of which has a height of 2.20mm. Find (a) image distance (in cm) and (b) height (in mm) of the magnified print.
An average force of 201 N is exerted to draw the string back 1.3 m. unless otherwise directed, imagine that air resistance is negligible. Illustrate energy bar graphs to solve the difficulty .
A bartender slides a beer mug at 1.30 m/s towards a customer at the end of a frictionless bar that is 2.0m tall. The customer makes a grab for the mug and misses, and the mug sails off the end of the bar.
A staging that weighs 440 N supports two painters, one 110 N and the other 460 N. The reading in the left scale is Ft = 800 N. What is the reading Fr, in the right hand scale.
What is a density of the block
An object with a net charge of 44 µC is placed in a uniform electric ?eld of 554 N/C, directed vertically. The acceleration of gravity is 9.81 m/s^2. What is the mass of this object if it ?oats in this electric ?eld?
Calculate the rates of solar heating
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