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Questions in physics
📝 Answered - An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?
📝 Answered - Who is the group designed for (who is your population/deal group members)?
📝 Answered - The intensity, or loudness, of a sound can be measured in decibels $(d B)$, according to the equation $I(d B)=10 olog \left[\frac{1}{f_0}\right]$, where $l$ is the intensity of a given sound and $l_0$ is the threshold of hearing intensity. What is the intensity, in decibels, $[/(d B)]$, when $l=10^8\left(l_0\right)$ ? A. 8 B. 9 C. 19 D. 80
📝 Answered - In the power formula $P=V I$, where $P$ is power, $V$ is voltage, and $I$ is current, how would you rearrange to solve for current $I$? a. $I = P - V$ b. $I =\frac{P}{V}$ c. $I=P V$ d. $I=\frac{V}{P}$
📝 Answered - Briefly describe how the Sun produces energy.
📝 Answered - About how long ago did our solar system start to form? A. About 5 million years ago B. About 14 million years ago C. About 5 billion years ago D. About 14 billion years ago
📝 Answered - An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?
📝 Answered - In your task group, who is the group designed for (who is your population/seal group members)?
📝 Answered - An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?
📝 Answered - Using the formula $R=\frac{\Delta T}{\alpha}$ where $\alpha$ is the coefficient of thermal expansion, and $\Delta T$ is the change in temperature, how would you solve for $\Delta T$? a. $\Delta T=R \alpha$ b. $\Delta T=R+\alpha$ c. $\Delta T=\frac{R}{a}$ d. $\Delta T=\frac{a}{R}$
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