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A tube of varying radius is open to the atmosphere at both ends as shown. When air is blown through the tube, it is observed that the beaker of mercury below begins to climb up the attached pipe. At what mass flow rate (i.e. kg/s) would air have to be blown through the tube for the mercury to climb all the way up the pipe and into the tube where the air is flowing? (Note: Density of air is 1.2kg/m3 and density of mercury is 13594kg/m3).
a neodymium-glass laser emits short pulses of high-intensity electromagnetic waves. the electric field of such a wave
Particle X has a speed of .74 c and a momentum of 5.54 * 10^-19 kgm/s. What is the total energy of the particle
Block A (5.70 kg) is resting on a smooth (no friction) horizontal surface. Find the acceleration (magnitude and direction) of block
Two cars, A and B, travel in the same direction on a straight section of highway. A has a speed of 72.0 km/h, What is the speed of B relative to A
A cyclist traveling at 5 m/s uniformly accelerates up to 10 m/s in2.0 Sec. Each tire of the bike has a 35 cm radius, and a smallpebble is caught in one of them. Through what angle does the pebble revolve
a 5.41 x 10-5 h solenoid is constructed by wrapping 70 turns of wire around a cylinder with a cross-sectional area of
At t=0 , a wheel rotating about a fixed axis at a constant angular acceleration of -0.40rad/s2 has an angular velocity of 1.5rad/s and an angular position of 2.3 rad. Determine the angular position of the wheel at t= 2.0second
A person's leg measures 40 cm between the knee and the hip, with an average leg diameter of 12 cm. What are the fractions of muscle and fat in the leg
Birds resting on high-voltage power lines are a common sight. The copper wire on which a bird stands is 2.2 cm in diameter, calculate the potential difference between its feet
A wooder raft has mass of 76kg. When empty it floats in water (density 1000 kg/m^3) with 40% of its volume submerged
A crate on a motorized cart starts from rest and moves with a constant eastward acceleration of a = 2.50m/s^2. What is the instantaneous power supplied by this force
question1marilyn m and her identical in every way twin sister sheila s are riding on a merry-go-round revolving at a
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