damon

This page lists questions and answers that were posted by visitors named damon.

Questions

The following questions were asked by visitors named damon.

A collective noun is plural when the group acts as a unit (i.e., "The team lost their fourth game in a row.").

A regular hexagon is composed of 12 congruent 30-60-90 triangles. If the length of the hypotenuse of one of those triangles is 18 square root 3, find the perimeter of the hexagon.

a parallelogram has the vertices (-1,2), (4,4), (2,-1), and (-3,-3). determine what type of parallelogram. find the perimeter and area. i found the parallelogram part and its a rhombus but i cant find the perimeter and area

can someone please explain the steps: suppose that the grade point average,denoted by X,of a university student is Normally distributed with the mean 2.786 and standard deviation 0.375 A). a student is on the deans list if her GPA exceeds 3.746. What perc...

The latent heat of fusion for water is 33.5 × 104 J/kg, while the latent heat of vaporization is 22.6 × 105 J/kg. What mass m of water at 0 °C must be frozen in order to release the amount of heat that 2.32 kg of steam at 100 °C releases when it condenses...

A bag contains 2 white marbles amd 3 green marbles. Two marbles are drawn at random, one after the other. The first marble is replaced before the second one is drawn. What is the probability that the first marble is green and second one is white?

A sample of 30.695 g of limestone (calcium carbonate) is heated at high temperature and decomposes according to the calcination reaction After a warm-up, the limestone suffered complete decomposition and after the cold was weighed and indicated 30.14 g ....

A chemist has a solution of NaOH 4 mol/L and wishes to prepare 500 mL of a Solution at 3 mol/L. What volume should it use from the 4 mol/L solution?

Concentrated hydrochloric acid has 37.5% of HCl in mass and density of 1.2 g/cm3. What volume (in mL) of concentrated hydrochloric acid should be used to prepare 7 L of a 0.8 mol/L HCl (aq) concentration solution?

What is the concentration, in parts per million (ppm), of an aqueous solution of copper sulfate II (CuSO4) at 12% by weight?

Why does an aqueous solution of 0.10 mol/kg of NaCl have a higher boiling point than a 0.10 mol/kg aqueous C6H12O6?

Which masses of HNO3 nitric acid and water should be mixed to prepare 1000 grams of UAM 8% solution in mass of HNO3?

S8 (rhombic) + 12 O2 (g)-----> 8 SO3 (g) + 752.0 kcal In the reaction above equated, performed at 25 °c and 1 atm, the formation enthalpy of the SO3 (g) is equal to: a) +752,0 kcal b) -752,0 kcal c) +773,0 kcal d) -94,0 kcal e) +94,0 kcal

From a hydrogen peroxide (diluted in water) a sample of 1.00 g is removed, acidifing it with H2SO4 and then titrated with a solution of 0.20 M of KMnO4, requiring 17.6 mL of KMnOH. What is the percentage of H2O2 contained in the bottle?

What is the equation of the line L that passes through the point (1, −1) and has an angle of inclination of 60°? - im inclined towards y=√3 x −1−√3 as the answer, am i correct

John Roger's Stephens left a 3.5 kg iron shovel outside through the winter. The shovel now orange with rust, is rediscovered in the spring. It's mass is 3.7kg. How much oxygen combined with the iron?

Consider a mixture of 50% water and 50% of mass ethanol, whose relative density is equal to 0.9138. Get the mass of ethanol contained in 100m3 of mixture.

Sodium chloride salt (NaCl) has a solubility coefficient equal to 55g/100g of water at 25 ° C. If we add 15g of salt to 100g of water what kind of solution are we forming? Formation of any precipitate?

The heel on a pair of women’s shoes tapers from a radius of 1.75 cm down to a radius of 0.50 cm at the bottom. If 50% of the weight of a 600 N woman is supported by each heel, find the stress on each heel. Submit your answer in MPa.

Maria studied the traffic trends in India. She found that the number of cars on the road increases by 10% each year. If there were 80 million cars in year 1 of her study, how many more cars were on the road in year 3 compared to year 2?

You dissolve 25 g of CaSO4 in water and dilute to 1500 mL. What is the molarity of this solution?

Answers

The following answers were posted by visitors named damon.

Energy transformation is the process of changing energy from one form to another. This process is happening all the time, both in the world and within people. When people consume food, the body utilizes the chemical energy in the bonds of the food and tra...

1 km * 1000 m/km * 1 s/4 m * 1 min/60 s = 250/60 = 25/6 minutes

factors: 1609 m/mi 3600 s/h 1000 m/km 24 hr/d ======================= (.9mi/.5h) = 1.8 mi/h =========================== now (1.8mi/h)(1609m/mi)(1h/3600s) = (1.8*1609/3600) m/s ==================== (1.8*1609/3600)m/s (1km/1000m)(3600*24 s/d) = 1.8*1.609*24...

70 mi/h *1 h/60 min = (7/6)mi/min (7/6)(mi/min)(24 min) = 7*4 mi = 28 miles

Starlight Tree Farm sells Douglas firs and Noble firs. One December they sold 139 more Douglas firs than Noble firs. The total number of trees sold was 377. Which equation could be used to solve for n, the number of Noble fir trees sold

Starlight Tree Farm sells Douglas firs and Noble firs. One December they sold 139 more Douglas firs than Noble firs. The total number of trees sold was 377. Which equation could be used to solve for n, the number of Noble fir trees sold

sorry about being anonymous. My computer does that sometimes.

we know 5*3 is 15 and two 15s is 30 so (5x-3)(5x-3) = 0 so 5x-3 = 0 x = 3/5 twice because both solutions are the same. That means the vertex of the parabola is on the x axis at x = 5

multiply both sides of the equation by 5 5/5 = 1 4*5 = 20

few and far between.

did not check arithmetic but that is the right idea

you need 2 mols of H2 for every mol of O2 2 H2 + O2 -> 2 H2O or in this problem 4H2 + 2 O2 --> 4 H2O H2 is 2+16 = 18 grams/mol so 4 * 18 grams

s + g in bag at first s-1 = (1/7)(s+g-1) s = (1/5)(s+g-2)

power in Watts * time in seeconds = energy in Joules so 1225 * t = 727 t = (727/1225 )second

Speed is a scalar. You an measure it with a speedometer. BUT Velocity is a VECTOR. You need both the speedometer AND a compass. Acceleration is a vector, rate of change of Velocity THEREFORE If speed changes, that is Acceleration ALSO If direction changes...

You are welcome. By the way if you have learned about "centripetal acceleration", that is acceleration with no speed change, just direction.

Good :) and acceleration can be + or -. Often if negative it is called de-acceleration but not by physicists :)

Right! You are on a roll.

You are welcome. I believe you get it.

Yes. speedometer the same, compass different.

You are welcome.

the speed is 95 the velocity also has to specify direction Remember, for velocity you need speedometer AND compass. ACCELERATION is rate of Change of Velocity b

By the way km/h is a perfectly good way to specify speed. However once you get into calculating accelerations and stuff you will need to convert that to meters/second

You are welcome, good luck. Remember that speedometer and compass.

They are great circles with circumferences equal to the circumference of the planet. The prime meridian is zero longitude originally chosen to start counting east and west from Greenwich England. The equator is zero latitude and latitude is measured north...

Thank u so much :)

Thank you for your help

The heel on a pair of women’s shoes tapers from a radius of 1.75 cm down to a radius of 0.50 cm at the bottom. If 50% of the weight of a 600 N woman is supported by each heel, find the stress on each heel. Submit your answer in MPa.

The heel on a pair of women’s shoes tapers from a radius of 1.75 cm down to a radius of 0.50 cm at the bottom. If 50% of the weight of a 600 N woman is supported by each heel, find the stress on each heel. Submit your answer in MPa.

damon you the goat

25g / 136.4 = 0.087 0.087/ 1.5L = 0.085?

yeah it was my calculator, i figured it out though. however, when you respond to questions you could be a little nicer. thanks for the help :)

well 3^6 = 729 log base 3 ( 729) = log base 3 (3^6) = 6 * 1 or log base 3 (729) =6

Family has 4 letters ?

try: cit IES famil IES

Try reading "Longitude" by Dana Sobel for the development of the chronometer to measure time accurately at sea so longitude could be determined. If Columbus had owned one, he would have known he was not in Asia.

because 8^3 = 512 8^2 = 64 ????>???