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Questions in physics
📝 Answered - The whiteness of clouds is due mainly to A. polarization. B. reflection. C. scattering. D. water prisms.
📝 Answered - 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.
📝 Answered - An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?
📝 Answered - 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
📝 Answered - 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.
📝 Answered - The change in an object's position relative to a reference point is: A. motion B. velocity C. neutral point D. position
📝 Answered - 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
📝 Answered - 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]
📝 Answered - An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?
📝 Answered - An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?
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