Which facial expression conveys a positive emotion in most cultures?
0 A
a grin
OB.
a smile
a.
a smirk
O D.
a wink
E.
a frown
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Answer fast, please. Can someone help me on this Coulomb's law for the magnitude of the force FFF between two particles with charges QQQ and QQQ^\prime separated by a distance ddd is|F|=K|QQ|d2|F|=K|QQ|d2,where K=140K=140, and 0=8.8541012C2/(Nm2)0=8.8541012C2/(Nm2) is the permittivity of free space.Consider two point charges located on the x axis: one charge, q1q1q_1 = -15.0 nCnC , is located at x1x1x_1 = -1.660 mm ; the second charge, q2q2q_2 = 34.5 nCnC , is at the origin (x=0.0000)(x=0.0000).What is the net force exerted by these two charges on a third charge q3q3q_3 = 47.0 nCnC placed between q1q1q_1 and q2q2q_2 at x3x3x_3 = -1.240 mm ?Your answer may be positive or negative, depending on the direction of the force. Johanna wrote the system of equations.4x-3y=1, 5x+4y=9If the second equation is multiplied by 4, what should the first equation be multiplied by to eliminate the x-variable by addition? Which are descriptions of gravity on Earth? Check all that apply.an attractive forcea repulsive forcea noncontact forcea contact forcea horizontal forcea vertical force Is this SAS or Not SAS? Please Help! ASAP! WIll give BrainliestFigure A is a scale image of Figure B.What is the value of x? ................................................ A negative test charge experiences a force to the right as a result of an electric field. Which is the best conclusion to drawbased on this description?The electric field points to the left because the force on a negative charge is opposite to the direction of the field,The electric field points to the right because the force on a negative charge is in the same direction as the field,No conclusion can be drawn because the sign of the charge creating the field is unknown,No conclusion can be drawn because the amount of charge on the test charge is unknown. Find an equation for the nth term of the arithmetic sequence.a16 = 21, a17 = -1 The scores on one portion of a standardized test are approximately Normally distributed, N(572, 51). a. Use the 68-95-99.7 rule to estimate the range of scores that includes the middle 95% of these test scores. b. Use technology to estimate the range of scores that includes the middle 90% of these test scores. Which traits would Aristotle have used to classify sharks? Choose more than one answer. What is the affirmative command for Usted of SERVIR (to serve) Do you think that climate change has been presented to you as doom and gloom throughout your life? Explain. How does your heart rate affect the rate at which red blood cells travel throughout your body? PLEASE HELP ME QUICK!! The object below is a cubical lunch box having each edge as 10 cm.Find its surface area. A600 cm2 B360 cm2 C300 cm2 D36 cm2 A man wants to hike two trails. The length of one trail is 7.709 km. The length of the other trail is 9.0309 km. What is the total length of the two trails? Part B which details from the text best supports the answer to part a former red bow Crowl Corporation is investigating automating a process by purchasing a machine for $793,800 that would have a 9-year useful life and no salvage value. By automating the process, the company would save $133,000 per year in cash operating costs. The new machine would replace some old equipment that would be sold for scrap now, yielding $21,200. The annual depreciation on the new machine would be $88,200. The simple rate of return on the investment is closest to a. 5.80% b. 11.12% c. 16.72% d. 5.12% So they could get work, most of the immigrants settled:in the Westin large citiesin the Midweston the farms