The two types of bright nebulae are emission nebulae and ______________ nebulae.
Fill in the blank(s) with correct word
[Ques. 2] The energy differences in some of the rotational energy levels of the water molecule allow cooking with ______________.
Fill in the blank(s) with correct word
[Ques. 3] Each of two parallel wires separated by 8.0 mm carries a 20-A current. These two currents are oppositely directed. Determine the magnitude of the magnetic field at a point that is 5.0 mm from each of the wires.
a. 2.0 mT
b. 1.6 mT
c. 1.3 mT
d. 1.8 mT
e. 1.0 mT
[Ques. 4] The greater the mass of a star, the ______________ it moves through its life cycle.
Fill in the blank(s) with correct word
[Ques. 5] When an electron changes from n = 3 to n = 2, a(n) ______________ is given off.
Fill in the blank(s) with correct word
[Ques. 6] Two very long parallel wires carry currents in the positive x direction. One wire (current = 15 A) is coincident with the x axis. The other wire (current = 50 A) passes through the point (0, 4.0 mm, 0). What is the magnitude of the magnetic field at the point (0, 0, 3.0 mm)?
a. 3.8 mT
b. 2.7 mT
c. 2.9 mT
d. 3.0 mT
e. 0.6 mT
[Ques. 7] Gas and dust distributed among the stars is known as the ______________.
Fill in the blank(s) with correct word
[Ques. 8] The second excited state for an electron in a hydrogen atom would be where n equals ______________.
Fill in the blank(s) with correct word
[Ques. 9] Two long straight wires carry currents perpendicular to the xy plane. One carries a current of 50 A and passes through the point x = 5.0 cm on the x axis. The second wire has a current of 80 A and passes through the point y = 4.0 cm on the y axis. What is the magnitude of the resulting magnetic field at the origin?
a. 200 T
b. 600 T
c. 450 T
d. 300 T
e. 400 T
[Ques. 10] The creation of elements inside a star is called ______________.
Fill in the blank(s) with correct word
Quick Reply
