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A 53-g iron bar at 100 degrees celsius is placed in a 300 g of water at 30 degrees celsius. if the specific heat capacity of iron is 450 J/kg degrees celsius, to what final temperature will the iron bar cool?
Conclude the magnitude of angular acceleration
Let us take half the terminal speed as a reasonable "upper bound" beyond which we should not use our constant acceleration free-fall relationships.
A balloon, which is negatively charged by rubbing,clings to a wall. why does the balloon eventually fall
A starship lands on a planet of mass 6*10^23 kg. An astronaut throws a rock of mass 9.5 kg up from the ground at 17 m/s. what is the gravitational acceleration on the rock
at a certain location the earth has a magnetic ?eld of 8.3 times 10-5 t pointing in the northward direction at 44?
You're making delieveries to several different stops, each several miles from the next. Find the vector displacement of your whole trip
The motor of an electric drill draws a 8.11 A current at the power line voltage of 120 V rms. What is the motor's power (in W) if the current lags the voltage by 27.1°
The angular resolution of a radio telescope is to be 0.100 degrees when the incident wave has a wavelength of 3.00mm. What minimum diameter is required for the telescope's receiving dish
Find the slit seperation of a double slit system that will produce bright interference fringes 1.00 degrees apart
Two wires, each 28.15 cm long, are connected to two separate 9.00 V batteries as shown in the figure. The resistance of the first wire is 5.00 Ω, and that of other wire is unknown (R). If the separation between the wires is 4.55 mm, what value of R w..
In a carnival they often have a large r = 16 m, cylinder which people stand against the outer wall while it rotates with some velocity, What is the minimum velocity of the cylinder to make someone "stick" to the wall in m/s
A string has a linear density of 6.80 10-3 kg/m and is under a tension of 345 N. Determine the speed of the traveling wave
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