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A stream moving with a speed of 0.8 m/s reaches a point where the cross-sectional area of the stream decreases to one-half of the original area. What is the water speed in this narrowed portion of the stream?
m/s
A storage tank contains 21.6 kg of nitrogen (N_2) at an absolute pressure of 3.54 atm. What will the pressure be if the nitrogen is replaced by an equal mass of CO_2 ?
During the time a compact disc(CD) accelerates from rest to a constant rotational speed of 1260rev/min, what is the angular acceleration of the CD
Abolt comes loose from underneath an elevator that is moving upward at a speed of 6.1 m/s. what is the speed of the bolt when it hits the bottom of the shaft
An aluminum rod is 24.0 cm long at 20°C and has a mass of 350 g. If 14,000 J of energy is added to the rod by heat, what is the change in length of the rod
A box is sliding up an incline that makes an angle of 13.4° with respect to the horizontal. How far does the box travel along the incline before coming to rest
If the asteroid fragment contains carbon, it may burn when entering Earth's atmosphere. Which type of chemical bond would result from this process
A positive charge of 0.800? C is located in a uniform field of 9.00×104 N/C. How close are the two charges
the problem is accompanied with a graph representing U in function of R, the curve begines at a certain point above the R axis , then decreases continuously, crosses the R axis and has a minimum at the coordinate (Ro,e), then decrease anew but sta..
A star ship is circling a distant planet of radius. The astronauts determine that the acceleration because of gravity at their altitude is half the value at the planet's surface. How far above the surface are they orbiting? Your reply would be a m..
A 56 kg astronaut floating at rest in space outside a space capsule throws his 0.50kg hammer such that it moves with the speed of 14.00 m/s relative to the capsule. What happens to the astronaut? What is the astronaut's speed.
A parallel-plate capacitor is constructed with circular plates of radius 6.5×10?2m . The plates are separated by 0.27mm, Find the value of the dielectric constant, k
Before embarking on a car trip from Michigan to Florida to escape the winter cold, What is the new pressure in your tires, in SI units
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