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A steel rod with a length of l = 1.55 m and a cross section of A = 4.84 cm2 is held fixed at the end points of the rod. What is the size of the force developing inside the steel rod when its temperature is raised by ?T = 41.0 K? (The coefficient of linear expansion for steel is ? = 1.17×10-5 1/K, the Young modulus of steel is E = 200 GPa.)
95.8 kg of ice is melted into water then raised to a temperture of 325.8 K. How much energy is needed to complete this process?
The pressure of a garden hose is 2 atmospheres. If the cross-sectional area of the hose is 4 cm^2 and the nozzle output area is .4cm^, How fast does the water leave the hose
A radar receiver can be tuned to detect signals in the range of [1750 µm to 2750 µm]. What is the frequency difference between the minimum and maximum wavelength
Starting with the left-most column, populate the boxes from left to right without skipping empty boxes. Ties should be grouped in the same box
A baseball (m = 145 g) approaches a bat horizontally at a speed of 41.5 m/s (93 mi/h) and is hit straight back at a speed of 45.8 m/s (102 mi/h). what is the average force exerted on the ball by the bat
A body is placed on a plane that is incline at an angle of 35degrees to the horizontal, Determine the component of mg parallel to the surface
Two lenses having focal lengths of f1=15 cm and f2=9 cm are separated by a distance of 50cm. If the lenses are moved into contact, what is their combined focal length
Determine the magnitude of the force between two point charges, Q1 = -2e located at (-3.60 cm, +4.10 cm) and Q2 = -8e located at (-0.60 cm, -8.60 cm). Continue working the problem above by calculating the direction of the force that Q1 exerts on Q..
The rocket's speed was measured to be 1.49 c. The rocket's rest length is 380m. An observer flying through measured the rocket to be 199m long.
The drawing shows a triple jump on a checkerboard, starting at the center of square A and ending on the center of square B, What is the magnitude of the displacement of the colored checker during the triple jump
A 144-g baseball mobing 28.0 m/s strikes a stationary 5.25 kg brick resting on small rollers so it moves without significant friction. What is the baseball's speed after the collision
How much work the power plant produces in a day. How much energy is discarded to low temperature source in a day.
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