Numerade

Questions asked

BEST MATCH

From the derivative, find the slope of the tangent line at the given point (-(\pi )/(4),1). y^(')=((1 y^(2))(-2x-arctany))/(x-y^(2)-1) m=

View Answer

BEST MATCH

How do different income levels and social classes perform core family functions? Group of answer choices Poorly Not mentioned in the reading Equally well Better than average

View Answer

BEST MATCH

The experiment performed in this activity involves a chemical reaction. Using experimental data and the stoichiometry for the reaction you can determine the percent yield of your desired product, a common calculation in the laboratory. Complete the following chemical reaction: A sample of metallic zinc undergoes displacement reaction with pure liquid hydrochloric acid two products are formed, a salt and a gas. The round bottom flask that the reaction is conducted in has a mass of 12.7 grams, to which the zinc is then added and reweighed at a mass of 30.5 grams. In the fumehood, an excess amount of concentrated hydrochloric acid is poured over the zinc and the reaction allowed to proceed until the desired salt product is formed. After completion the salt is purified and placed back into the same round bottom flask for storage, which together now have a mass of 37.5 grams. Based on this information, what is the percent yield for this reaction? Calculation

View Answer

BEST MATCH

Select the correct expression for the potential energy of a spring: A $ \frac{1}{2}kv^2 $ B $ \frac{1}{2}kx^2 $ C $ \frac{1}{2}mv^2 $ D $ \frac{1}{2}mx^2 $

View Answer

BEST MATCH

Question 9 Bacteria that live in the large intestine act on the chyme to produce vitamin K and some B vitamins, which are absorbed by the body. O True False 1 pts

View Answer

BEST MATCH

Match the mode of action with the correct antibiotic. Answers may be used once, more than once or not at all! [5 pt]

View Answer

BEST MATCH

True or false: If an increase in crime causes households to spend money on police and security systems, GDP will rise. Group of answer choices

View Answer

BEST MATCH

Upon heating, if the baking soda reacted to give solid sodium carbonate along with water and carbon dioxide gas that left the reaction container, what would be the theoretical percent mass loss of a sample of baking soda upon heating to a constant weight?

View Answer

BEST MATCH

Question 38 2 pts A golfer having a goal to go to the driving range an extra 30 minutes, 4 days a week to work on swing technique is an example of a goal that is much too general to be effective an inflexible strategy for attaining a goal because it leaves no room for possible interruptions in your schedule a performance goal that is both specific and realistic a process goal for attaining the performance goal to improve his handicap (score) Question 39 2 pts

View Answer

BEST MATCH

Determine RRRV for (a) Grounded fault (b) Ungrounded fault if in a short circuit test on a 220 kV, three phase circuit breaker having earthed neutral has the following results Fault p.f = 0.4, recovery voltage = 0.9 of full line value Breaking current is symmetrical and the restriking transient of natural frequency 18 kHz.

View Answer

jeremy v.