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brittany sedano

brittany s.

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5) Which of the following statements are true concerning electromagnetic waves in a vacuum? A) Electromagnetic waves can travel in a vacuum only because a medium prohibits the forward propagation of the electric and magnetic fields. B) Electromagnetic waves traveling in a vacuum are longitudinal waves, like sound waves. C) Electromagnetic waves travel in a vacuum with a definite and unchanging speed. D) Electromagnetic waves travel in a vacuum with an indefinite and constantly changing speed.

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researchers wanted to see if the southern hemisphere dolphins spent the same or a different amount of time swimming while sleeping as a pod in the indian ocean

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Which of the following is considered to be a point of service (POS) plan? Restricted provider organization Preferred provider organization Protected care provider Managed care plan

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A cell with a membrane potential of -70mV, cation A$^+$ equilibrium potential is 84mV, cation B$^+$ equilibrium potential is -88mV, and cation C$^+$ equilibrium potential is -48mV. All three cations are moving through channels, and are the only three ions moving through the membrane. Cation A$^+$ is entering (circle one) the cell with a negative driving force. Cation B$^+$ is exiting (circle one) the cell with a positive driving force. Cation C$^+$ is entering (circle one) the cell with a negative driving force. Resistance to the flow of cation B is the lowest in this scenario.

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Share what you know about biodiversity. What did your experiences look like? How do you think the experiences you have described so far have impacted your knowledge and perceptions about biodiversity and assessment?

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Which of the following has both endocrine and exocrine functions? O thyroid Oanterior pituitary adrenal medulla O pancreas

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the height of trees follows a normal distribution with a mean of 250 feet and a standard deviation of 20 feet. what is the height that marks the 90th percentile?

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Which system of exchange does not allow for government intervention in the exchange rate mechanism?

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Question 5. (a) Explain the difference between a real image and a virtual image for mirrors. [4 marks] (b) An object with height $h_o$ sits near a spherical mirror with $|f| = 40$ cm. The image is inverted and has height $h_i = 0.2 h_o$. Is the image real or virtual? [3 marks] (c) Justify your answer for the image type. [4 marks] (d) Is the mirror concave or convex? [3 marks] (e) Justify your answer for the mirror type. [4 marks] (f) Find the distance in cm of the object from the mirror. [4 marks] (g) Find the distance in cm of the image from the mirror. [4 marks] (h) Suppose you could increase the radius of curvature of the mirror con- tinuously while leaving the object distance constant. At what focal length would the image cease to be inverted? [4 marks]

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The angle between two vectors given by \( 6 \hat{\imath}+6 \hat{\jmath}-3 \hat{k} \) and \( 7 \hat{\imath}+4 \hat{\jmath}+4 \hat{k} \) is

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