Questions Asked on
January 19, 2018

English
Choose the mood of the underlined verb. 1. (Look) out of the window and tell me what you see. (1 point) indicative imperative*** subjunctive 2. Yosemite National Park (is) a national treasure. (1 point) indicative*** imperative subjunctive 3. If I (were)

physics
A ball of mass 0.2 kg strikes a force sensor and sticks to it. Just before impact the ball is travelling horizontally at a speed of 4.0 m s–1. The graph shows the variation with time t of the force F recorded by the sensor. (plus there is this graph

physics
A boy jumps from a wall 3m high. What is an estimate of the change in momentum of the boy when he lands without rebounding? the answer is 5x10^2kg/ms, but how?

physics
Each side of a metal cube is measured to be 2.0 cm ±0.20 cm. What is the absolute uncertainty in the calculated volume of the cube?

Math
1: Classify the quadrilateral using the name that best describes it I tried posting it but it didn't work 2: which statement is a true statement 3: which statement is a true statement 4: Which property is not a characteristic of a polygon 5: Which figure

physics
ne kilogram of ice of density 1000 kg m–3 is frozen in the shape of a cube. The diameter of a water molecule is 10–10 m. What is the difference in the orders of magnitude of the length of one side of the ice cube and the diameter of a water molecule?

scince
which two types of clouds indicate fair weather? A.cirrus and cumulusMy Answer B.cirrus and stratus C.cumulus and stratus D.cumulus and nimostratus

Physics
A crew team rows a boat at a rate of 20 km/h in still water. In practice on a river, the team rows for 30 minutes up the river (against the current), and then for 30 minutes down the river (with the current). The speed of the river current is 1.5 km/h. How

Art
1. A museum professional has been working extended hours to remove dirt and grease that a vandal left on a painting. This Professional is most likely an A. Curator B. Conservationist C. Historian D. Archaeologists 2.Pick the statement that best describes

physics
The efficiency of an electric motor is 20 %. When lifting a body 500 J of energy are wasted. What is the useful work done by the motor? please and thank u!

chemistry
Sulfur dioxide and oxygen react to form sulfur trioxide as follows 2SO_2(g) + O_2(g) ⇌ 2SO_3(g) 1 mole of sulfur dioxide is mixed with 0.5 moles of oxygen gas in a 1 L container. There is 0.9 mol of SO_3 at equilibrium. Calculate the following. a)

physic
A race car travels 950 km around a circular sprint track of radius 1.343 km. How many times did it go around the track?

Math
State the property that justifies the statement: If 3x = 6, then x = 2. A. Subtraction Property of Equality B. Addition Property of Equality C. Division Property of Equality D. Multiplication Property of Equality*** Can you please check my answers?

Social Studies
What negative impact did gold and silver mining have in the south? a)Tent cities near the mines fostered criminals as long term residents b)Ghost towns were left behind after the mines stopped producing c)Mining camps were sources of many contagious

Science
Draw an energy level diagram for the combustion of methane

Math!
Help would be highly appreciated! Thank you. What number is 73% of 215? A. 215 = 0.73n B. n = 0.73 x 215** C. 0.73 = n x 215 D. 215 = 73n What percent of 94 is 23? A. n/94 = 23/100 B. 23/94 = n/100** C. 94/n = 23/100 D. 23/94 = 100/n 85 is 40% of what

Science
7. Which degree of tilt produced light similar to what North America experiences in summer? Explain your answer *Based on the four seasons portfolio I need help with this bevause I dont understand what it is asking. Is it asking for the areas or the

Math
A curve is such that dy/dx=28(3x+4)^0.5 The curve intersects the yaxis where y=4/3 Find the equation of the cure.

Science
If a real frog was being dissected and the stomach has food in it, would any of it be identified?

Science
How much energy is given out whwn 1g of methane burns

math
A study of a population of 1,200 frogs revealed that 12 out of every 180 frogs in the population have spots on their back. Based on the results of this study, how many frogs in the population do NOT have spots on their back? a.80 b.168 c.1,280 d.1,120

biochem
you want to make a 0.5 m acetate buffer at a ph = 5.5. how much acetic acid and base should you mix

math
Determine whether ∆QRS is a right triangle for the given vertices. Explain. Q(18, 13), R(17, –3), S(–18, 12)

History
Why was the cowboy more of a legend than a reality. I think it's cowboys were typically low paid young people who needed a job Can you please check my answer.

science
what is an example of mutualism in a cave dwelling?

physic
unit of distance used in astronomy is the parsec (pc): 1 pc = 3.26 ly. The distance to the Earth's nextnearest star, αCentauri, is 1.3 pc. Find the distance d to αCentauri in lightyears and in meters.

Physics
Carbon15 has a halflife of 5730 years. As observed from Earth, what would the halflife of carbon15 be if it traveled through space at 25% of the speed of light, relative to Earth?

MS.SUE PLZ HELP!!!
For Questions 15, solve the equation... 1. 9x 5 = 95 a:17 b:11 c:10*** d:10 2. x/4 5 = 8 a:27 b:12 *** c:7 d:12 3. d/3+10 = 7 a:51 b:20 c:0 d:9 *** 4. 3(42x)= 2x a:1 b:1 c:2 d:3*** 5. 2.9n +1.7=3.5 +2.3n a:3 *** b:3 c:.3 d:1 Thank you for

Math 6th Grade
2 1/4 r = 10 A. 4 3/4 B. 4 2/5 C. 4 4/9 I having a little bit of trouble on this problem. Can you show me how to solve the problem?

Personal Fiance
You think that in 8 years it will cost $247,000 to provide your child a 4year college education. Will you have enough if you take $77,000 today and invest it for the next 8 years at 8 percent? Round the answer to the nearest cent. Round FVfactor and

physics
A ball is tossed vertically upwards with a speed of 5.0 m s–1. After how many seconds will the ball return to its initial position? plz help !

algebra 2
PLEASE HELP ME WITH THIS QUESTION I DONT WANT TO FAIL AND I FEEL AS IF IM WRONG! The average daily minimum temperature for Pablo’s hometown can be modeled by the function f(x)=15.3sin(πx6)+44.1 , where f(x) is the temperature in °F and x is the month.

math
Cathy sells twice as many pink sweaters as green sweaters each month. She averages 20 less green sweaters than pink sweaters each month. How many of each color sweater did Cathy sell?

Educational Technology and Online Learning 7
If my neighbor that I am friends with in real life wants to be my friend online, is that OK? WHy? Yes, because you know them. Am I right?

Social Studies
Should the U.S. have annexed Hawaii?

Chemistry
Research the contributions from these two scientists and read about how Avogadro’s number got its name. Briefly state what you think this number should be called, providing key details of each scientist’s contributions to this concept and a solid

History
1. Where did the culture of the cattle rancher and cowboy originate. A from Texas after the buffalo was over hunted B from the Comanche C from the need to move cattle nearer the Mississippi River D from spain

pre algebra
can you please tell me if my answers are correct? For questions 15 solve the equations 9x5=95 A 17 B 11 c 10 d 10** x/310= 12 A 6 B 66 C 6 D 66** d/3 + 10= 12 A 51 B 20 C 0 D 9** 2(22x)= 3x A 4 B 4 C 6** D 0 2.9n + 1.7= 3.5 + 2.3n A 3 B 3 C

Extra Credit
This isn't really a question most people ask, but I have to! There is this extra credit for each subject Social Studies, math, Science, LA, etc. The one's I don't have good grades on are Math and Language Arts. My father is leaving on a trip tomorrow, so I

math
point r has coordinates (a,b). the point is reflected across the x axis and then translated 5 points to the right to create point s. Create an expression that represent the y coordinates of point s

MATH
Which ordered pairs are on the line 4x−3y=84x−3y=8 ? Select each correct answer. (−1,4) (1,−4/3) (3/2,−2/3) (−4,−8) I know that one is (1,4/3) but I thought the other was (2,0) and it is not up their. Help

Math 6
Can someone check my answer? Q:r. Harry rides his bike 25 3/8 miles. Karen rides her bike 25 2/8 miles. Who rides farther? A:Karen rode farther. This is because 3/8 is about 37/100 and 2/5 is 40/100. Since both fractions have 25 as a mixed number for them,

physics
There is motion of a straight track between two stations. Average speed: 12m/s Distance between stations: 3600m. Please help how could I find the max speed given these information? and it isn't like the average speed so it confused me

math
On the surface of the moon, the astronauts weight is 128 newtons. What is the moon's gravitational constant?

Algebra 1 A
Please help, i need some assistance as i don't understand the material! You are starting a new business in which you have decided to sell two products instead of just one. Determine a business you could start and choose two products that you could sell.

Math
What is the difference in value between the largest and the smallest 6digit number formed using the digits 3, 0, 4, 5, 2, 9?

statistics
When a parachute is inspected, the inspector is looking for anything that might indicate the parachute might not open.  State the null and alternative hypotheses for this situation.

Math 8th
How could I solve this? Multiple Choice Classify the triangle according to side length and angle measurement. A right triangle A. isosceles; right B. equilateral; obtuse C. scalene; acute D. scalene; right

Pre Calc
Use the Pythagorean identities rather than reference triangles . Find tanθ and cotθ if secθ = 5/2 and sinθ

world history
In 1469, Ferdinand and Isabella’s marriage united Spain and established the dynasty of Catholic Monarchs (1). Ferdinand and Isabella enhanced their power by becoming patrons of Rome (2). Their Spanish gold raised numerous buildings in Rome, and their

Pre calc
Evaluate using the Pythagorean identities. Find sinθ and cosθ if tanθ = 1/4 and sinθ >0

Pre calc
Use the Pythagorean identities rather than reference triangles. Find tanθ and cotθ if secθ = 3/2 and sinθ

Educational Technology and Online Learning 7
Which of the following cannot be copyrighted? A.books B.inventions C.videos D.music I think it's D.music. Am I right?

science
Acetic acid (CH_3COOH) is a weak acid. a) Write the symbolic equation showing the ionisation of acetic acid. b)Given that an acetic acid solution of pH 4.8 has a hydrogen ion concentration of 1.58 * 10^5 mol L^1, what is the concentration of the acetate

History
how did women like dora dix and clara barton contribute to the union war effort during the civil war