A piece of aluminum with a mass of 1.0 kg and density of 2700 kg/m3 is suspended from a string and then completely immersed in a container of water. The density of water is 1000 kg/m3. (a) Determine the volume of the piece of aluminum
(b) Determine the tension in the string after the metal is immersed in the container of water.
(a) 3.7 × 10-4 m3
(b) 6.2 N
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If the magnetic susceptibility of a material is 5×10-6 that decreases with increase in temperature, this material is _________.
Fill in the blank(s) with the appropriate word(s).
A cyclotron operates at 10 MHz. What magnetic field is needed to accelerate protons?
A) 0.12 T B) 0.25 T C) 0.66 T D) 1.3 T E) 1.5 T
A block is pulled across a floor as shown in the vector diagram. The greater component of F is in the
1) horizontal direction, 2) vertical direction, although both horizontal and vertical components would be of equal magnitude if vector F were 3) horizontal. 4) vertical. 5) at an angle of 45°.
In gaseous form at the same temperature, the average speed of U-238 compared to the speed of U-235 is
A) less. B) more. C) the same.