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Questions in physics

[Homework Help] The whiteness of clouds is due mainly to A. polarization. B. reflection. C. scattering. D. water prisms.

[Homework Help] A child standing on a bus remains still when the bus is at rest. When the bus moves forward and then slows down, the child continues moving forward at the original speed. This is an example of A) an action-reaction pair. B) Newton's Third Law of Motion. C) Newton's First Law of Motion. D) Newton's Second Law of Motion.

[Homework Help] An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?

[Homework Help] Which of the following are the 3 principles of Radiation Protective Practice? A. Time, Distance, Shielding B. Signage, Distancing, Screening C. Access, Signage, Screening D. Protection, Screening, Cooling

[Homework Help] Now you will focus on a second hypothesis. This hypothesis can be very similar to the first, but this time you want to focus only on the second variable in question, speed. What could be a hypothesis that would illustrate the relationship between speed and kinetic energy? Use the format of "if...then...because..." when writing your hypothesis.

[Homework Help] The change in an object's position relative to a reference point is: A. motion B. velocity C. neutral point D. position

[Homework Help] What would decrease the resistance of wires carrying an electric current? A. shorter wires B. higher-temperature wires C. darker-colored wires D. thinner wires

[Homework Help] Which equation can be used to solve for acceleration? [tex]t=\frac{\Delta v}{a}[/tex] [tex]v f=a t-v i[/tex] [tex]a=\frac{d}{t}[/tex] [tex]\Delta v=\frac{a}{t}[/tex]

[Homework Help] An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?

[Homework Help] An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?