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if you add 1 kg of stainless steel at 100 degrees celsius to 5 kg water at 20 degrees celsius, the final temperature of the steel/water mix is 21.8 degrees celsius. What is the specific heat of stainless steel?
A soldier has a huge contraption that notches a large 4 kg arrow (it looks more like a lance) in a massive bow and uses a winch system to draw the arrow back to set the bow. What is the speed of the arrow
If so evaluate their acceleraton and the tension in the string. If not determine the sum of the magnitudes of the forces of friction acting on the blocks.
1ml of distilled water is injected into a length of 3mm diametre tubing and sealed at the other end by folding over, Why doesn't water drain out when the tube is hung vertically
White light is incident normally on a thin soap film ( = 1.33) suspended in air. What are the two minimum thicknesses that will constructively reflect yellow ( = 577 ) light? Enter your answers in ascending order separated by a comma
An electron is accelerated from rest through a potential difference that has a magnitude of 2.90 × 107 V. FIND the relativistic kinetic energy (in joules) of the electron
A 20 g bullet traveling at 300 m/s is shot into a 4.0 kg block at rest on a frictionless horizontal surface. What is the speed of the block right after shooting
A hypodermic syringe is attached to a needle that has an internal radius of 0.303 mm and a length of 3.02 cm. What must the pressure of the fluid in the syringe be in order to inject the solution at a rate of 0.253 mL/s
A Wheatstone bridge is connected to a nine volt battery and is balanced when R1 = 6.3 k?, R2 = 3.3 k?, and R3 = 9.7354 k?
A charged line of linear charge density ? has been bent into a circular arc of radius r that makes an angle ? with its center. (A). Find the magnitude of the electric field at the center of this arc. (Does your result make sense, what should it be..
What is the magnitude of the electrostatic force the molecule exerts on it?
A system has a heat source supplying heat at a rate of 187 W and is doing work at a rate of 130.899998 W. At what rate is the internal energy of the system changing.
The coefficient of kinetic friction between block and ramp
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