Question 7. His parents object strongly his playing too much computer games. A. at B. to C. in D. against
Question 8. It gets when the winter is coming.
A. cold and cold B. cold and colder C. more and more cold D. colder and colder
Question 9. She has just bought .
A. a Swiss beautiful brand-new watch B. a Swiss brand-new beautiful watch
C. a brand-new beautiful Swiss watch D. a beautiful brand-new Swiss watch
Question 10: When I last saw him, hein London.
A. is living B. has been living C. was living D. lived

1st: His parents object strongly AGAINST his playing too much computer games.

2nd: More and more cold.

3rd: A beautiful brand-new Swiss watch (D)

4th: was living

Explanation:

1st: Against is the proper term for "his" parents strongly OBJECTING. Key word is "objecting."

2nd: This is just grammatically correct.

3rd: This is the correct order for the watch's adjectives.

4th: When I last SAW him...this is past tense. Hence why the answer is "was living."

Hope this helps! :D

these have to be in your own words

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: