Which statement best describes the electric field? A) The units are newtons per coulomb, and the arrows indicate the direction that a positive charge placed in the field would feel a force.

B) The units are newtons per coulomb, and the arrows indicate the direction that a negative charge placed in the field would feel a force.

C) The units are newton-coulombs, and the arrows indicate the direction that a positive charge placed in the field would feel a force.

D) The units are newton-coulombs, and the arrows indicate the direction that a negative charge placed in the field would feel a force.

Adisk with a radius of r is oriented with its normal unit vector at an angle q with respect to a uniform electric field. which of the following would result in an increase in the electric flux through the disk? check all that apply? a. increasing the area of the disk b. decreasing the given orientation angle of the disk c. decreasing the strength of the electric field d. increasing the given orientation angle of the disk, but not exceeding an angle of 90

Aflask with vinegar in it has a mass of 160 grams. a balloon with baking soda in it has a mass of 40 grams. the balloon is attached to the flask to seal the opening and the vinegar and baking soda mixes. the balloon inflates to a large volume. what will the total mass of the balloon and flask be after the balloon inflates? explain. a) less than 200 grams because the solid baking soda disappears. b) 200 grams, because all the atoms remain in the balloon or flask. c) more than 200 grams because the size of the balloon is so much larger. d) less than 200 grams because gases such as the one in the balloon are lighter than solids and liquids.

Why should the wavelength scale of spectroscope be calibrated