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Questions in physics

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

[Done] 1) Logic: Being a parent, do I accept the affectations of my children? 2) Metaphysics: In your daily life, do you believe that God is there for you? 3) Epistemology: Does AI help you? 4) Ethics: Should GMRC be brought back, or this new curriculum? 5) Aesthetics: Do you believe that beauty is just a physical appearance?

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

[Done] You notice that a stack of cardboard boxes is placed very close to (but not touching) an oven's exhaust vent. Is this a fire risk? A. Yes, the heat from the oven vent could ignite the cardboard. B. No, the cardboard can only ignite if it touches an open flame.

[Done] In an adiabatic process (one in which no heat transfer takes place), the pressure [tex]$P$[/tex] and volume [tex]$V$[/tex] of an ideal gas such as oxygen satisfy the equation [tex]$P^5 V^7=C$[/tex] where C is a constant. Suppose that at a certain instant of time, the volume of the gas is 5 L, the pressure is 100 KPA, and the pressure is decreasing at the rate of 5 KPA/SEC. Find the rate at which the volume is changing.

[Done] The quantity Q of charge in coulombs [tex]$C$[/tex] that has passed through a point in a wire up to time [tex]$T$[/tex] (measured in seconds) is given by [tex]$Q(t)=t^3-3 t^2+4 t+3$[/tex]. Find the current when [tex]$T=4 s$[/tex].

[Done] Convert $106^{\circ} C$ to Kelvin. $106^{\circ} C=[?] K$

[Done] The mass of part of a wire is [tex]$x(1+\sqrt{x})$[/tex] kilograms, where [tex]$x$[/tex] is measured in meters from one end of the wire. Find the linear density of the wire when [tex]$x=36 m$[/tex].

[Done] Saturn has 1.06 times the gravity of the Earth. Which statement is true for a book that an astronaut takes to Saturn? A. The book would weigh the same both places. B. The book would weigh more on the Earth. C. The book would weigh more on Saturn.

[Done] Measurements of two electric currents are shown in the chart. Electric Currents | Current | Volts | Amperes | |---|---|---| | X | 1.5 | 7.8 | | Y | 9 | 0.5 | Which best compares the two currents? A. Current X has a greater potential difference, and the charges flow at a slower rate. B. Current Y has a greater potential difference, and the charges flow at a slower rate. C. Current X has a greater potential difference, and the charges flow at a faster rate. D. Current Y has a greater potential difference, and the charges flow at a faster rate.