Thursday
April 17, 2014

Homework Help: Science: Earth

Recent Homework Questions About Earth

Post a New Question | Current Questions

Geography
1.) Into which two hemispheres would an island at 50 degrees South, 60 degrees West be placed? Which of the five themes are reflected in your answer? 2.) How do the winds and the oceans distribute heat on the earth's surface? My answer: The motion od the ocean helps ...
Monday, August 26, 2013 at 12:32pm

Chemistry
Earth's oceans have an average depth of 3800 m, a total area of 3.63 108 km2, and an average concentration of dissolved gold of 5.8 10-9 g/L. (a) How many grams of gold are in the oceans? (b) How many cubic meters of gold are in the oceans? Assuming the price of gold is $...
Sunday, August 25, 2013 at 4:42pm

science
People used to think the earth was flat and the sun revolved around the earth. To think otherwise, even when evidence contradicted this, used to be considered heresy and was severely punished.
Friday, August 23, 2013 at 11:07am

earth science
1,2
Friday, August 23, 2013 at 9:07am

english
No,we have to write 8 adjectives in capital letter on a cut out picture of earth.No need to describe the earth using adjectives.so,please help me...
Friday, August 23, 2013 at 6:26am

physics
A PARTICLE OF MASS M IS SHOT WITH an initial velocity v making an angle b with the horizontal,the particle moves in the gravitational field of the earth. find the angular momentum of the particle about the origin when the particle is at the origin ,at the highest point of its ...
Thursday, August 22, 2013 at 7:23pm

English
Are the adjectives supposed to describe the earth?
Thursday, August 22, 2013 at 4:08pm

english
Please show me this, on a A4 sheet paper paste a cutout of a picture of earth and write 8 adjectives in capital letter inside rectangular block( any coloue ink)
Thursday, August 22, 2013 at 3:46pm

English
I need to complete these sentences. I can't think of anything that would fit the caps locked word. Can you help me work through them? 1. Ralph wanted a BONA FIDE New York cheescake, so he....... 2.The formation of a pearl is an ADVENTITIOUS effect of...... 3.The fecund ...
Tuesday, August 20, 2013 at 4:14pm

Earth Space
Thanks so much! I now have all the correct answers, thanks for your help.
Monday, August 19, 2013 at 5:17pm

Earth Space
The phases of the moon do not affect how much is illuminated. The sun always shines on one half of the moon's surface (except when there is a lunar eclipse). The phases of the moon are caused by where earth are in relation to the sun and moon, and how much of the ...
Monday, August 19, 2013 at 5:15pm

Earth Space
Do the phases of the moon affect how much of the moon is illuminated? I said yes because thats what causes us to have the different shapes/phases of the moon. Whichever parts are lit up. Is the following sentence true or false? The cycle of the phases takes about two days ...
Monday, August 19, 2013 at 4:27pm

English
Imagine that you are an agent who is interested in publishing new authors. Choose any book you like and present the book to a publisher in New York. How's this; To whom it may concern, A very great friend of mine decided to begin writing the bible for kids. He just ...
Saturday, August 17, 2013 at 2:17am

Geometry
A person standing h feet above sea level can seecd miles to the horizon. The distance r is the radius of the earth = 3963 miles. d is the tangent to the circle forming a right angle to the radius. h + r is the tangent. Solve using Pythagorean theorem and secant-tangent theorem...
Thursday, August 15, 2013 at 11:33pm

Earth Space (In desperate need)
Just FYI, earth's rotation on its axis causes day/night, not the seasons. The earth's axis tilts from being perpendicular to the plane of the ecliptic, and that is what causes the seasons. (The orbit of earth is very very close to circular, so earth's revolution ...
Thursday, August 15, 2013 at 6:19pm

Earth Space (In desperate need)
Thanks!
Thursday, August 15, 2013 at 4:59pm

Earth Space (In desperate need)
Writeacher and I gave you enough references for you to find the answers to your questions.
Thursday, August 15, 2013 at 4:56pm

Earth Space (In desperate need)
wait, its the other way around! and im guessing the equinox is when the days night ares are equal in length? but its asking where the sun is? This is so confusing
Thursday, August 15, 2013 at 4:55pm

Earth Space (In desperate need)
Is the crescent moon phase question this: The moon phase that precedes is to the right side of the moon, while the moon phase after is to the left.
Thursday, August 15, 2013 at 4:49pm

Earth Space (In desperate need)
Are you asking about the Northern or Southern Hemisphere? Check for summer solstice.
Thursday, August 15, 2013 at 4:45pm

Earth Space (In desperate need)
what date recieves the longest amount of sunlight? Im not sure of the date
Thursday, August 15, 2013 at 4:42pm

Earth Space (In desperate need)
You'll find your answers in these sites. http://www.universetoday.com/60655/earth​-revolution/ http://www.google.com/webhp?source=searc​h_app#bav=on.2,or.r_qf.&fp=dd8949972b2a4​6be&q=the+sidereal+month+may+be+defined+​as http://www.thefreedictionary...
Thursday, August 15, 2013 at 4:35pm

Earth Space (In desperate need)
In addition to rotating on its own axis, doesn't the earth also rotate around our sun? http://en.wikipedia.org/wiki/Sidereal_ti​me Keep searching ... the answers are there somewhere. Sometimes you have to change the search terms. Use http://www.answers.com and http...
Thursday, August 15, 2013 at 4:28pm

Earth Space (In desperate need)
My teacher didnt have time to finish the lesson day, and I can't find the answers anywhere online or in my book. What are 2 main ways in which the earth moves? What does each movement cause? I have it rotates on its axis which causes seasons, but I cant think of other ones...
Thursday, August 15, 2013 at 4:07pm

Physic
Initial Ke = (1/2) m v^2 = (1/2)(61)(3.5)^2 drop in potential energy = m g h I assume that the 62 m is along the slope so h = 62 sin 23 which is drop down toward center of earth so drop in potential = 61*9.81*62 sin 23 work done against friction = friction force * distance = ...
Wednesday, August 14, 2013 at 7:47pm

math 15
find the minimum height above the surface of the earth so that the pilot at point a can see an object on the horizon at c 125 miles away. assume the diameter of the earth to be 8000 miles.
Tuesday, August 13, 2013 at 8:09am

science
if the speed is high enough, the stone will in fact not fall back to the same spot, due to coriolis effect caused by the earth's rotation. Under everyday conditions, the deflection is so small that it makes no practical difference, and the object appears to fall right back...
Thursday, August 8, 2013 at 12:21pm

science
whether a stone thrown upword with very high speed fall to the same point to the ground? If yes then why even the earth is in motion?
Thursday, August 8, 2013 at 10:13am

Science
Velo.of earth=1.5x10^11/365x24x3600 m/sec if we take time of revolution as 365 days. Momentum = mass x velocity. Calculate 1.5x10^11x6x10^24/365x24x3600 kgm 9x10^25/1.151x10^10=7.819x10^16 kgm
Thursday, August 8, 2013 at 7:43am

Science
I don't know the formula for calculating the magnitude of the momentum of the earth in its journey around the sun. The mass is 6x10^24kg and its radius of orbit is 1.5x10^11m.
Thursday, August 8, 2013 at 7:05am

Earth Space
Which branches of earth science would the hydrosphere interact with? I said biosphere, atmosphere, and geosphere. Is that correct?
Wednesday, August 7, 2013 at 4:23pm

physics
I am having a really hard time figuring this question out, would somebody be able to help me? Imagine a giant dry-cleaner's bag full of air at a temperature of -35∘C floating like a balloon with a string hanging from it 12km above the ground. Estimate what its ...
Monday, August 5, 2013 at 1:23am

Writing
I taught in 2 high schools in California for 30 years, and I was tenured. This is a flawed question for at least two reasons: High school teachers in most (or maybe all) states already can earn tenure. and Any statement that assumes "all" or "none" or "...
Sunday, August 4, 2013 at 9:28pm

Algebra 1
mmmhhh, distance that an object falls on earth is governed my d = 16t^2 , where t is seconds and d is in feet so 16t^2 = 16 t^2 = 1 t = √1 = 1
Thursday, August 1, 2013 at 3:30pm

physics
The loudest sound in Earth’s history is believed to be the explosion of the volcanic island of Krakatoa, back in 1883. Physicists estimate that the intensity of the sound produced was 1.0×107 W/m2. How many decibels does this correspond to?
Monday, July 29, 2013 at 10:13pm

physics
Our muscles atrophy when there is no gravitational force. On long space flights this is a problem, which is why astronauts exercise. On very long space flights it might be advisable to simulate gravity. Your space ship is a long cylinder of radius 100 m that spins about its ...
Monday, July 29, 2013 at 5:37am

geography
i found 1 more difference; Volcanoes are created by debris from their own eruptions but fold mountains are formed by slow motion collisions of earth's plates
Thursday, July 25, 2013 at 1:24pm

geography
Compare and contrast folded mountains to volcanic mountains. How they are alike? How they are different? i got some of it.. Similarities: Both were probably formed from convergent plate boundaries. Difference: Volcanic Mountains - are mountains that form when molten rock ...
Thursday, July 25, 2013 at 9:50am

earth
actually, since r is in km, that would be km^3
Wednesday, July 24, 2013 at 5:22pm

earth
____ cubic meters, since r is in meters.
Wednesday, July 24, 2013 at 8:15am

earth
____ cubic meters, since r is in meters.
Wednesday, July 24, 2013 at 8:15am

earth
r = 6.955*10^5 v = 4/3 pi r^3 = 4/3 pi * 6.955^3 * 10^15 = 1.409 * 10^18
Wednesday, July 24, 2013 at 4:32am

earth
The radius of the sun is 695 500 km What is its approximate volume written in Scientific notation?
Tuesday, July 23, 2013 at 9:22pm

English (Ms.Sue please answer) I did some work own
What on earth does heroism have to do with social position and ancestry? I have no idea where you'd go with this.
Sunday, July 21, 2013 at 8:21pm

earth
http://www.space.com/15584-solar-eclipse​s.html https://en.wikipedia.org/wiki/Lunar_ecli​pse
Sunday, July 21, 2013 at 12:42pm

earth
Solar eClipse http://en.wikipedia.org/wiki/Solar_eclip​se Lunar eClipse https://en.wikipedia.org/wiki/Lunar_ecli​pse
Sunday, July 21, 2013 at 12:41pm

earth
What is an elipse of the sun and what is lunor elipse of the moon
Sunday, July 21, 2013 at 12:37pm

physics
The sun radiates like a perfect blackbody with an emissivity of exactly 1. (a) Calculate the surface temperature(K) of the sun, given it is a sphere with a 7.00 multiplied by 108 m radius that radiates 3.80 multiplied by 1026 W into 3 K space. (b) How much power(W/m^2)does the...
Sunday, July 21, 2013 at 3:01am

Physics
The sun radiates like a perfect blackbody with an emissivity of exactly 1. (a) Calculate the surface temperature(K) of the sun, given it is a sphere with a 7.00 multiplied by 108 m radius that radiates 3.80 multiplied by 1026 W into 3 K space. (b) How much power(W/m^2)does the...
Saturday, July 20, 2013 at 10:05pm

physics
The greatest ocean depths on earth are found in the Marianas Trench near the Philippines, where the depth of the bottom of the trench is about 11.0 km. Calculate the pressure(atm)due to the ocean at a depth of 10.1 km, assuming sea water density is constant all the way down...
Thursday, July 18, 2013 at 4:04pm

physics
The greatest ocean depths on earth are found in the Marianas Trench near the Philippines, where the depth of the bottom of the trench is about 11.0 km. Calculate the pressure due to the ocean at a depth of 10.1 km, assuming sea water density is constant all the way down. (The ...
Thursday, July 18, 2013 at 3:03pm

English
1. Last year, we had a school festival. I couldn't attend the school festival because of my illness. 2. Last year, we had a field trip. We couldn't enjoy the trip because of heavy rain. 3. Last year, we had a school talent show. We couldn't do well because we had ...
Tuesday, July 16, 2013 at 4:08pm

Physics
A man stands underneath a power line carrying a current of 150 A. If the power line is 15 m above the man, what is the magnetic flux density measured by the man (Neglect the Earth's magnetic field).
Tuesday, July 16, 2013 at 2:13pm

Physics help please
Lo= 12 ly [twin a] La= Lo*sqrt(1-v^2/c^2)= 5.23 ly [twin b] Lb= Lo*sqrt(1-v^2/c^2)= 10.39 ly the time to reach the planet: [twin a] ta=La/va= 5.23ly/0.9c= 5.81 yr. [twin b] tb=Lb/vb= 10.39ly/0.5c= 20.78 y The age of each twin when each arrives at the planet: [twin a] 19 y + 5....
Tuesday, July 16, 2013 at 1:43am

Earth science
The following questions are based on the “Mt. Dome, California,” quadrangle (Figure 33-2 found on page 228 of the Laboratory Manual; enlarged to scale 1:48,000; contour interval 40 feet) and the stereogram of the same region (Figure 33-3 found on page 229 of the ...
Saturday, July 13, 2013 at 5:22pm

math
A skydiver jumps from his aircraft and falls towards earth. Due to the earth’s gravitational attraction, the sky diver will accelerate for a duration of 5.65 secs, at which time he reaches terminal velocity, that is a constant falling velocity of 181 ft./sec due to ...
Saturday, July 13, 2013 at 1:12pm

Biology
Will you please check my answers? 1. Single-celled organisms that do not have a membrane-bound nucleus are called A. organelles. B. prokaryotes. C. Golgi bodies. D. eukaryotes. 2. In cells, a form of active transport is A. a sodium-potassium pump. B. osmosis. C. facilitated ...
Friday, July 12, 2013 at 6:40pm

physics
Weight is mass m times acceleration due to gravity g, which is given by g=GMm/R^2 where M and R are mass & radius of Earth and G is Universal Gravitational Constant. For new planet, g`=G(0.1Mm/(R/2)^2 =0.1GMm/R^2/4 =GMm(0.1x4)/R^2=0.4GMm/R^2 Hence g/g`=0.4, which means the ...
Friday, July 12, 2013 at 5:24am

physics
an object weighs 10N on earth .what is the objects weight on a planet one tenth the earths mass and one half its radius?
Friday, July 12, 2013 at 12:45am

physic
A satellite used in a cellular telephone network has a mass of 2010kg and is in a circular orbit at a height of 770km above the surface of the earthTake the gravitational constant to be G = 6.67×10−11N⋅m2/kg2 , the mass of the earth to be me = 5.97×...
Thursday, July 11, 2013 at 6:47pm

physics
A satellite used in a cellular telephone network has a mass of 2010kg and is in a circular orbit at a height of 770km above the surface of the earthWhat is the gravitational force Fgrav on the satellite? Take the gravitational constant to be G = 6.67×10−11N⋅...
Thursday, July 11, 2013 at 6:45pm

physic
Consider the earth following its nearly circular orbit (dashed curve) about the sun.(Figure 2) The earth has mass mearth=5.98×1024kg and the sun has mass msun=1.99×1030kg. They are separated, center to center, by r=93millionmiles=150millionkm.
Thursday, July 11, 2013 at 6:01pm

Geography
http://www.enchantedlearning.com/subject​s/astronomy/planets/earth/Continents.sht​ml
Wednesday, July 10, 2013 at 9:20pm

Geography
which layers of the earth move? Why do ther move?
Wednesday, July 10, 2013 at 9:18pm

science
The radius of the Earth is approximately 3,960 miles. Find the approximate surface-area-to-volume ratio of the Earth. A. 0.00025 B. 0.00076 C. 1,320 D. 11,880
Wednesday, July 10, 2013 at 1:37pm

Physics
A satellite moves in a circular orbit around the Earth at a speed of 5.9 km/s. Determine the satellite’s altitude above the surface of the Earth. Assume the Earth is a homogeneous sphere of radius 6370 km and mass 5.98 × 1024 kg. The value of the universal ...
Tuesday, July 9, 2013 at 4:36pm

physics
the gravitational constant G =6.67•10⁻¹¹ N•m²/kg², Earth’s mass is M₁ = 5.97•10²⁴kg, Earth’s radius is R₁ = 6.38•10⁶ m. Moon’s mass is M₂= 7.35•10² kg Moon’s radius ...
Tuesday, July 9, 2013 at 1:13pm

physics
the gravitational constant G =6.67•10⁻¹¹ N•m²/kg², Earth’s mass is M = 5.97•10²⁴kg, Earth’s radius is R = 6.378•10⁶ m. E(g) = F/m = G•m •M/m(R+h)²= = G•M/(R+h)²= =6.67•10&#...
Tuesday, July 9, 2013 at 3:39am

physics
The Moon has a mass of 7.35  1022 kg and its equatorial radius is 1.74  106 m. Earth’s mass is 5.97  1024 kg and its equatorial radius is 6.38  106 m. (a) Calculate the magnitude of the gravitational force exerted by i) the Moon on a fully suited 100-kg ...
Monday, July 8, 2013 at 9:18pm

physics
Suppose the straight-line distance between New York and San Francisco is 4.4 106 m (neglecting the curvature of the earth). A UFO is flying between these two cities at a speed of 0.69c relative to the earth. What do the voyagers aboard the UFO measure for this distance?
Monday, July 8, 2013 at 2:45pm

phy
(Q1)What is the orbital radius and speed of a synchronous satellite which orbits the earth once every 24h? Take G=0.0000000000667Nm2/kg2. Mass of the earth is 598000000kg (a)4200000m and 31000m/s (b)5600000m and 4300m/s (c)430000m and 5000m/s(d)3400000m and 6000m/s (Q2) A ball...
Friday, July 5, 2013 at 2:25pm

phy
Q1 the gravitational constant G =6.67•10⁻¹¹ N•m²/kg², Radius of the Earth is 6400 000 m =6.4•10⁶ m ===Your data is incorrect!!! mg=G•m•M/R² mg`= G•m•M/(R+h)² (R+h)²/ R² = g /g`=9.8/4.9 = 2 R...
Friday, July 5, 2013 at 1:15pm

earth
http://flashcarddb.com/cardset/269993-ea​rth-science-sem-1-%E2%80%93-forces-and-f​eatures-of-earth-flashcards
Friday, July 5, 2013 at 12:37pm

earth
The capital letter(s) that label a rock unit (e.g., KJk) on a geologic map represents the rock unit's
Friday, July 5, 2013 at 11:37am

phy
(Q1)At what altitude above the earth's surface would the acceleration due to gravity be 4.9m/s-2?Assuming the mean radius of the earth is 64000000meters and the acceleration due to gravity 9.8m/s-2 on the surface of the earth (a)26000000m(b)323000000m(c)465000000m(d​...
Friday, July 5, 2013 at 10:59am

science
2) Create an APA reference for this chapter of the publication as one would find in the APA reference page Title of book: SUPERHEROES ON EARTH Pages in book: 1-250 Chapter Title: SECRET IDENTITES Pages of chapter: 45-67 Author: BRUCE WAYNE AND CLARK KENT Editors: JACK BLACK ...
Wednesday, July 3, 2013 at 5:07pm

earth
1. b 2. b
Wednesday, July 3, 2013 at 1:48pm

science
Create an APA reference for this chapter of the publication as one would find in the APA reference page (2 marks): Title of book: SUPERHEROES ON EARTH Pages in book: 1-250 Chapter Title: SECRET IDENTITES Pages of chapter: 45-67 Author: BRUCE WAYNE AND CLARK KENT Editors: JACK ...
Wednesday, July 3, 2013 at 1:17pm

general physics
the gravitational constant G =6.67•10⁻¹¹ N•m²/kg², Earth’s mass is M = 5.97•10²⁴kg, Earth’s radius is R = 6.378•10⁶ m. r=R+h =6.378•10⁶ +0.327•10⁶ =... ma=F F =G•m•M/r²...
Monday, July 1, 2013 at 6:23pm

general physics
His spacecraft, Vostok I, was a sphere about 2.3 m in diameter, and it reached a maximum altitude above Earth’s surface of 327 km. What was the spacecraft’s speed at this point in its orbit?
Monday, July 1, 2013 at 5:56pm

ALGEBRA
A satalites escape velocity is 6.5 mi/sec, the radius of the earth is 3960 miles and the earth's gravitational constant(g) is 32.2 ft/sec^2 How far is the satelite from the surface of the earth?
Monday, July 1, 2013 at 1:30pm

physics
The earth rotates once per day about an axis passing through the north and south poles, an axis that is perpendicular to the plane of the equator. Assuming the earth is a sphere with a radius of 6.38 x 106 m, determine the speed and centripetal acceleration of a person ...
Monday, July 1, 2013 at 1:06pm

physics
Even though we have found an earth sized planet around the nearest star Alpha Centauri B, we're not even close to getting there. To see this let's think about the duration of a flight to Alpha Centauri B, which is about 4×1016 meters away. Imagine a rocket that ...
Monday, July 1, 2013 at 1:05pm

Phyiscs
the gravitational constant G =6.67•10⁻¹¹ N•m²/kg², Earth’s mass is M = 5.98•10²⁴kg, Earth’s radius is R = 6.38•10⁶ m. T=L/v F = m₁•m₂/R= G•m•M/(2.07R) ² F=ma=m•v²...
Monday, July 1, 2013 at 3:38am

Phyiscs
A satellite circles the earth in an orbit whose radius is 2.07 times the earth's radius. The earth's mass is 5.98 x 1024 kg, and its radius is 6.38 x 106 m. What is the period of the satellite?
Sunday, June 30, 2013 at 8:50pm

physics
Geosynchronous communications satellites are placed in a circular orbit that is 3.59 107 m above the surface of the earth. What is the magnitude of the acceleration due to gravity at this distance?
Thursday, June 27, 2013 at 3:25pm

essex county
a robe exert a force on a 20kg crate. the crate starts from rest and accelerates upward at 5m/s^2 near the surface of the earth. how much work was done by the force in raising the crate 4.0m above the floor?
Thursday, June 27, 2013 at 12:22pm

physics
Suppose the Earth's orbit is divided in two by its minor axis as shown in the figure. How much longer in days does the Earth spend in one half than the other? The eccentricity of an elliptical orbit is defined as e:=a/c where c is the semi-major axis and a is the distance ...
Tuesday, June 25, 2013 at 9:06pm

astonomy
Assume that earth and mars are perfect spheres with the radii of 6,371km and 3,390 km, respectively. Calculate the surface area of earth. b)calculate surface area of mars
Tuesday, June 25, 2013 at 4:15pm

physics
A satellite moves in a circular orbit around the Earth at a speed of 5 km/s. Determine the satellite’s altitude above the surface of the Earth. Assume the Earth is a homogeneous sphere of radius 6370 km and mass 5.98 × 1024 kg. The value of the universal ...
Monday, June 24, 2013 at 7:40pm

physics
A rocket of mass 4.36 × 105 kg is in flight near earth's surface. Its thrust is directed at an angle of 58.9° above the horizontal and has a magnitude of 9.61 × 106 N. Find the (a) magnitude and (b) direction of the rocket's acceleration. Give the ...
Monday, June 24, 2013 at 12:09pm

phyisics
If approximately 70% of the Earth's surface is covered with water, what is the order of magnitude for the number of raindrops in the world's oceans?
Saturday, June 22, 2013 at 5:07am

physics
a watermelon has a mass of 8kg and 600 g . how mich force of gravity of the earthwill it experience ?what will be its weight on the earth and the moo
Friday, June 21, 2013 at 10:04am

Math
Three ships — the Nina, the Pinta, and the Santa Maria — are setting sail from Spain on a mission to find the shortest route to the West Indies. The year is 1492 and Columbus is about to sail the ocean blue... "NO! It can't be so!" shouted Captain ...
Thursday, June 20, 2013 at 10:20am

Physics
W = m•g =G•m•M/R² g= G•M/R² the gravitational constant G =6.67•10⁻¹¹ N•m²/kg², Earth’s mass is M = 5.97•10²⁴kg, Earth’s radius is R = 6.378•10⁶ m.
Wednesday, June 19, 2013 at 4:18am

Physics tough
If approximately 70% of the Earth's surface is covered with water, what is the order of magnitude for the number of raindrops in the world's oceans? Hint: The order of magnitude of 2478=2.478×10^3 is 3.
Wednesday, June 19, 2013 at 2:19am

physics
the gravitational constant G =6.67•10⁻¹¹ N•m²/kg², Earth’s mass is M = 5.97•10²⁴kg, Earth’s radius is R = 6.378•10⁶ m. r = 850000 m ma=F mv²/(R+r)= G•m•M /(R+r)² v=sqrt{G•M /(R+r...
Tuesday, June 18, 2013 at 5:22pm

physics
a polar satellite is launched at 850 km above Earth .find its orbital speed.
Tuesday, June 18, 2013 at 11:18am

electronics technician
19. In a solenoid, where is the magnetic field strongest? A. Outside the coil C. At the north pole B. Inside the coil D. At the south pole 20. What is a typical coil voltage for a low-voltage relay circuit? A. 2 VDC C. 12 VDC B. 5 VDC D. 120 VDC 21. Electromagnetic stepping ...
Tuesday, June 18, 2013 at 10:26am

math
A mason's assistant's rate of pay is $0.75 per cubic foot of earth moved. He moves 220 cubic feet of earth to dig a trench. What is his pay for this job? THE ANSWER IS NOT &330
Monday, June 17, 2013 at 2:36pm

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