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A simple U-tube contains a liquid of density ρ1. A second liquid of density ρ2 (ρ2 < ρ1) is poured into the right arm until it reaches height h above the right surface of the first liquid. (a) How high does the first liquid rise in the left arm from its initial level? (b) If the ratio of the densities is 15, and h = 25 cm, Compute the change in the height of the first liquid in the left arm of the U-tube.
Assume the bat is a wooden rod of uniform diameter and take the pivot point to be in the middle of the bat, at the end of the bat, Calculate the moment of inertia of a baseball bat
a laser having an internal loss per round-trip of 0.015 when pumped at three times threshold has an output power of 4w.
On your first trip to Planet X you happen to take along a 215 mass, a long spring, a meter stick, and a stopwatch. You're curious about the free-fall acceleration on Planet X, What is the value of gravity
The lower block in is pulled on by a rope with a tension force of F = 31 N.The coefficient of kinetic friction between the lower block and thesurface is 0.40. The coefficient of kinetic friction between the lower block and the upper block is also ..
Determine the magnitude and direction of the force on a horizontal conductor 10cm long and carrying 25 amperes of current from south to north, if places in air in a horizontal magnetic field of flux density .8 w/m2 directed from east to west.
Two children pull in opposite directions on a toy wagon of mass 9kg. One exerts a force of 18 N and the other exerts a force of 46 N
The drawing shows two boxes resting on frictionless ramps. Onebox is relatively light and sits on a steep ramp. The other box isheavier and rests on a ramp that is less steep. The boxes arereleased from rest at A and allowed to slide down the ramp..
a tuning fork vibrates at a frequency of 256 hz. what is the wavelength of the sound coming from the fork when the air
At one instant, a system has 30J of kinetic energy and 30J of potential energy. How much work was done by conservative forces
The mass of a regulation tennis ball is 52.0g (although it can vary slightly), and tests have shown that the ball is in contact with the tennis racket for 26.0m/s}. what impulse did he exert on the ball
A car is traveling at 58.36 mph. The driver applies the brakes and the car decelerates at 4.25 m/s^2. What is the stopping distance in meters
The Hubble Telescope orbits the earth in a near circular orbit of about 585 km above the Earth's surface. find the magnitude of the centripetal acceleration of the satellite
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