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kayla rivers

kayla r.

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If the car rolls along the track in the opposite direction would you expect magnitude of the acceleration to increase, decrease, or stay the If the car rolls along the track in the opposite direction would you expect magnitude of the acceleration to increase, decrease, or stay the same?? Question 5 options: increase same decrease

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according to chemistry about com, the density of chemically pure water is 997.0479 kg/m^3 at 25 c, whereas you used the commonky-acceoted value. 1.00

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A shirt was originally priced at $50. The store is having a 10\% off sale. How much will you pay for the shirt after the discount (not including tax)

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CIRCULAR MOTION WORKSHEET \( \mathrm{T}= \) time \( / \mathrm{rev} \quad \mathrm{v}=2 \pi \mathrm{r} / \mathrm{T} \quad \mathrm{a}_{\mathrm{c}}=\mathrm{v}^{2} / \mathrm{r} \quad \mathrm{F}_{\mathrm{c}}=\mathrm{m} 4 \pi^{2} \mathrm{r} / \mathrm{T}^{2} \quad \mathrm{~F}_{\mathrm{c}}=m \mathrm{a}_{\mathrm{c}} \) 1. A race car makes one lap around a track of radius 50 m in 9.0 s . a) What is the average velocity? b) What was the car's centripetal acceleration? 2. Normie Neutron swings a rubber ball attached to a string over his head in a horizontal, circular path. The piece of string is 1.5 m long and the ball makes 120 complete turns each minute. a) What is the average velocity of the ball? b) What is the ball's centripetal acceleration? 3. A car goes around a curve at \( 20 . \mathrm{m} / \mathrm{s} \). If the radius of the curve is 50 m , what is the centripetal acceleration of the car? 4. Professor Brown holds on to the end of the minute hand of a clock atop city hall. If the minute hand is 4.0 m long, what is the professor's centripetal acceleration? 5. A flea gets its thrills by riding on the outer edge of a golden oldies record album of radius 15 cm as it is being played with a rotational period of 1.8 seconds. a) What is the flea's average speed? b) What is the flea's centripetal acceleration?

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Which amount of resistance and number of repetitions is most effective for improving muscular endurance? Multiple Choice 40% to 60% RM; 1-5 repetitions 40% to 60% RM; 15-20 repetitions 80% to 100% RM; 5 repetitions 70% to 80% RM; 5-10 repetitions

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What macromolecules are present in food, and why do organisms need food for their biological functioning?

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In the first quarter of 2017, a group of mutual funds had a mean return of 6.3% and a standard deviation of 2.2%. The returns were well described by a Normal model. According to the Normal model N(6.3%, 2.2%) determine what percentage of this group of funds you would expect to have the following returns a) Over 6.8%? c) More than 1%? b) Between 0% and 7.0%? d) Less than 0%? a) The expected percentage of returns that are over 6.8% is $oxed{}$ % (Type an integer or a decimal rounded to one decimal place as needed)

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Question 1 3 pts Find the height of a pine tree that casts a 68-feet shadow on the ground if the angle of elevation of the sun is 40°. O 52.09 ft O 57.06 ft O 42.55 ft O 43.71 ft

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Solid State Devices Worksheet 2 1. In an intrinsic semiconductor, in which energy band do free electrons exist? In which band do holes exist? 2. How are holes created in an intrinsic semiconductor? 3. Why is current established more easily in a semiconductor than in an insulator? 4. How is an n-type semiconductor formed? 5. How is a p-type semiconductor formed? 6. What is a pn junction? 7. Which bias condition produces majority carrier current? 8. Which bias condition produces a widening of the depletion region? 9. What is avalanche breakdown? 10. What are the two conditions under which the diode is operated? 11. What is the simplest way to visualize a diode? 12. What two approximations are included in the offset-resistance model of a diode?

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Economic Conditions Strong economy, no inflation Weak economy, above-average inflation No major change in economy What is the standard deviation of the expected return? (Chapter 6, slide 14-16) a. 9.651% b. 9.731% c. 9.813% d. 9.916% e. 9.987% Probability 0.31 0.29 0.4 Rate of Return 20% -5% 10%

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