Refer to the table of densities to answer the following questions: substance density (g/ml) aluminum titanium zinc tin iron nickel copper silver lead mercu 9 10 100 2.70 4.54 7.13 7.31 7.87 8.90 8.96 10.50 11.35 13.55 19.30 50 10 5 volume (em) 5. sketch a graph of mass vs. volume for titanium, copper and mercury.

a solenoid is created by wrapping a l = 90 m long wire around a hollow tube of diameter d = 4.5 cm.   the wire diameter is d = 0.9 mm.   the solenoid wire is then connected to a power supply so that a current of i = 9 a flows through the wire.

randomized variablesl = 90 m

d = 4.5 cm

d = 0.9 mm

i = 9 a                                          

write an expression for the number of turns, n, in the solenoid. you do not need to take into account the diameter of the wire in this calculation.

calculate the number of turns, n, in the solenoid.

write an expression for the length of the solenoid (l2) in terms of the diameter of the hollow tube d.

calculate the length of the solenoid (l2)   in meters.

calculate the magnitude of the magnetic field at the center of the solenoid in teslas.

explanation:

kepler used the data from tycho blahe (his mentor) to construct the laws of planetary motion.

b. false

explanation:

suppose a rock in free fall is dropped off a cliff. after falling for 5 seconds, its speed would not be 100 m/s.