Numerade

Questions asked

BEST MATCH

Cuanta carga corre por una batería de 12.0V cuando es conectada a un condensador de 15µF? A Q=1.8x10⁻⁴C B) Q=3.2x10⁻⁴C C Q=8.4x10⁻⁶C D Q=4.21x10⁻⁵C

View Answer

BEST MATCH

By first completing the square, solve $ x^{2}-3 x+\frac{1}{4}=0 $. Give your answers fully simplified in the form $ x=a \pm \sqrt{b} $, where $ a $ and $ b $ are integers or fractions.

View Answer

BEST MATCH

Just after leaving the platform, the diver's fully extended 61-kg body has a rotational speed of 0.38 rev/s about an axis normal to the plane of the trajectory. Estimate the angular velocity N later in the dive when the diver has assumed the tuck position. Model the diver as a uniform rod in the first position and as a uniform sphere in the second. Assume $h_1 = 2.1$ m, $h_2 = 0.63$ m. Answer: N = rev/s

View Answer

BEST MATCH

The octal number (45.36) is equal to the binary number

View Answer

BEST MATCH

How does Pontiac rally his fellow natives to his side to oppose the British Empire? He tells them they need to honor their treaty with the French. He calls on his people to embrace English culture and win them over by assimilating. He predicts that resistance is hopeless. He rejects the idea that natives need European goods or culture. He calls on his people to drive them out of their country.

View Answer

BEST MATCH

Amber is a behavioral psychologist. She is trying to get her client, a 5th grader, to do his homework without arguing. Which strategy is Amber most likely going to use? Selected answer will be automatically saved. For keyboard navigation, press up/down arrow keys to select an answer. a activate specific brain regions using transcranial magnetic stimulation (TMS) b allow him to have an additional hour of screen time each day he completes his homework without arguing c place him on an SSRI to increase his levels of motivation for completing his homework d talk with him about the importance of personal pride when a task is completed correctly

View Answer

BEST MATCH

Solve the following proportion for y. \frac{10}{y} = \frac{13}{11} Round your answer to the nearest tenth. y =

View Answer

BEST MATCH

Problem # 4. (15) A powerful detector measures the frequency of radiation over virtually the entire electromagnetic spectrum, ranging from 1 kHz (extremely low frequency radio waves used to communicate with submarines) through the visible spectrum, and all the way up to frequencies of over $10^{20}$ Hz (Gamma rays). Let random variable Z be the frequency measured in kHz. Its PDF is: $\frac{2}{z^3}u(z - 1)$, where $u(.)$ is the standard unit step function. a) The wavelength is given by random variable Y = $cZ^{-1}$, where constant c denotes the speed of light (in appropriate units). Find its PDF, $f_Y(y)$. b) Given the extensive electromagnetic spectrum, it is often useful to plot the frequency measurements in log scale. Let X = $log_e(Z)$, and find its PDF, $f_X(x)$. c) Are X and Y uncorrelated and/or independent? Prove your answer mathematically, and explain why it should have been expected.

View Answer

BEST MATCH

3. Find the Thévenin and Norton equivalent. +j50 ? 0000 100 ? 2\0°

View Answer

BEST MATCH

9. Suppose in the trial described in Problem 8 that patients were recruited from three different clini- cal sites. Use the data in Table 7-56 to test if there is a difference in the proportions of hypertensive patients across clinical sites. Run the test at a 5% level of significance. 10. A clinical trial is conducted to compare an exper- imental medication to a placebo to reduce the symptoms of asthma. Two hundred participants are enrolled in the study and randomized to receive either the experimental medication or a placebo. The primary outcome is self-reported reduction of symptoms. Among 100 participants who receive the experimental medication, 38 report a reduction of symptoms as compared to 21 participants of 100 assigned to placebo. Test if there is a significant difference in the proportions of participants reporting a reduction of symptoms between the experimental and placebo groups. a=0.05 TABLE 7-57 Change in Symptoms by Treatment Treatment Change in Symptoms Much Worse Worse No Change Experimental 10 17 35

View Answer

luisa s.