Two point charges are located on the x-axis of coordinate system. Charge q1 = 2 nC is at x = 1 cm, q2 = -4 nC at x = 3 cm. What is the total electrostatic force exerted by q1 and q2 on a third charge q3 = 5 nC at x = 2 cm? a.
1.8 x 10-4 N

b.
7.2 x 10-4 N

c.
9.0 x 10-4 N

d.
16.2 x 10-4 N

Which types of electromagnetic waves have higher frequencies than the waves that make up ultraviolet light? check all that apply. radio waves infrared light microwaves gamma rays visible light x-rays

Aperson walking 1 mile everyday for exercise, leaving her front porch at 9: 00 am and returning to her front porch at 9: 25 am. what is the total displacement of her daily walk? a) 1 mileb) 0c) 25 minutes d) none of the above

(01.02 mc) nicole pushes her bike up a hill. overhead, the sun exerts a gravitational force on earth. which statement is true about the bike and earth? they both experience contact forces. they both experience non-contact forces. the bike experiences a non-contact force and earth experiences a contact force. the bike experiences a contact force and earth experiences a non-contact force. they both experience non-contact forces.