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Questions in physics

[Done] National Fire Protection Association (NFPA) classified solid materials like (wood, paper, clothes, etc.) fires: A. Symbolized by (A) B. Symbolized by (B) C. Symbolized by (C) D. Symbolized by (D)

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

[Done] How much energy does an X-ray with an [tex]$8 nm\left(8 \times 10^{-9} m\right)$[/tex] wavelength have? A. [tex]$2.48 \times 10^{-17} J$[/tex] B. [tex]$8.28 \times 10^{-26} J$[/tex] C. [tex]$3.33 \times 10^{16} J$[/tex] D. [tex]$1.99 \times 10^{-25} J$[/tex]

[Done] Which celestial body would have the strongest gravitational pull on a satellite orbiting 100 km above its surface? Explain your answer.

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

[Done] What is the velocity of a wave? A. How quickly the wave travels B. How much energy the wave has C. The distance between the high and low points of the wave D. The distance between two wave peaks

[Done] In a scenario where a thin metallic strip on a vernier caliper descends from the upper edge to the lower edge and makes constant contact with the surface of a beaker, the main scale displays a reading of 6.40. The vernier scale division aligns precisely with a main scale division. Assuming there is no zero error, what is the measurement of the beaker?

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

[Done] The primary factor in decreasing the Kinetic Energy of an object is to: A. Decrease the stopping distance B. Decrease the mass C. Decrease the velocity D. Decrease the direction

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