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Questions in physics

[Answered] A(n) _____ is one in which some built-in asymmetry draws the excited electrons away and delivers them to an external circuit before they can relax. a. electromagnetic device b. nuclear power plant c. photovoltaic device d. conventional power plant

[Answered] What is the mass of a crate if a net force of 12 N gives the crate an acceleration of [tex]$0.20 m / s ^2$[/tex]? A. 2.4 kg B. 6 kg C. 12.2 kg D. 60 kg

[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?

[Answered] A car breaks from 360 km/h to a full stop in 10 s, what is its acceleration? A. -10 m/s^2 B. -1 m/s C. 1 m/s^2 D. 10 m/s^2

[Answered] What is the energy of a photon that emits a light of frequency $7.21 \times 10^{14} Hz$? A. $4.78 x 10^{-19} J$ B. $2.76 x 10^{-19} J$ C. $1.09 \times 10^{-19} J$ D. $4.16 x 10^{-19} J

[Answered] Convert 7.11 x 10-4 to microseconds. Use only the metric system.

[Answered] Accuracy Check: Prompt: What is the largest planet in our solar system? Response: The solar system has eight planets: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. There are five officially recognized dwarf planets in our solar system: Ceres, Pluto, Haumea, Makemake, and Eris. Jupiter is the largest planet in our solar system. It's approximately 11 times wider than Earth with an equatorial diameter of 88,846 miles, and its mass is more than 2.5 times that of all other planets in our solar system combined. Target Sentence: Jupiter is the largest planet in our solar system. O The Target sentence is Accurate (all claims being made can be considered as accurate when using an authoritative source) O The Target sentence is Inaccurate (at least one of the claims being made can be considered as inaccurate when using an authoritative source)

[Answered] A baseball has a mass of 145 g. A bat exerts a force of [tex]$18,400 N$[/tex] on the ball. What is the acceleration of the ball?

[Answered] A ball is launched horizontally at the same time as an identical ball is dropped straight down. Will the ball that was launched hit the ground after the ball that was dropped? True False