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Lance

Questions (180)

how were the changes that took place in russia as a result of world war 1 different from those that took place in western
1. 0 answers
2. 305 views
A 30 m long chain weighing 120N/m hangs from the drum of a winch. calculate the work done to wind up the first 9 m of the chain
1. 0 answers
2. 334 views
A boy whose height is 7.3 N runs up a flight of stairs 4.5 m high in 8.5s. What is his average power
1. 1 answer
2. 428 views
A driving bell can withstand a maximum pressure of 2.5 x 10^6 Pa. What maximum depth can the ball reach in seawater?
1. 1 answer
2. 529 views
What is the gauge pressure at the bottom of a pool 1.9 m deep?
1. 1 answer
2. 808 views
What is the absolute pressure 1.8 m below the surface of a lake?
1. 1 answer
2. 1,651 views
What is the gauge pressure if the absolute pressure is 321 atm?
1. 1 answer
2. 553 views
What is the absolute pressure if the gauge pressure is 3.2 atm?
1. 1 answer
2. 714 views
What is the absolute pressure 2.5 m below sea surface?
1. 1 answer
2. 874 views
What is the gauge pressure if the absolute pressure is 400 kPa?
1. 0 answers
2. 723 views
A diver can withstand a maximum pressure of 3x10^5 Pa. What maximum depth can he reach in seawater?
1. 1 answer
2. 884 views
What is the absolute pressure if the gauge pressure is 100 kPa?
1. 1 answer
2. 2,194 views
A copper cylinder with a cross-sectional area 0.034 m^2 is placed vertically on a tabletop. What is the weight of the cylinder
1. 1 answer
2. 629 views
A 500-mL beaker has a mass of 250 g when empty and 645 g when filled with an unknown liquid. What is the density of the liquid?
1. 1 answer
2. 2,293 views
What is the mass of a rectangular shaped ice block with dimensions of 0.04m x 0.05m x 0.03m if the density of ice is 917 kg/m3?
1. 1 answer
2. 1,160 views
If an elliptic race track is 100 yards long and 20 yards wide, then how far apart are the foci?
1. 1 answer
2. 1,079 views
What is the focal length of a lens that has a center of curvature of 18 meters from one of the curves of the lens?
1. 1 answer
2. 446 views
What is the focal length if a lens that has a center of curvature 8 meters from one of the curves on the lens?
1. 1 answer
2. 421 views
An object is placed at a distance of 60 cm from a converging lens with a focal length of 20cm. What is the magnification of the
1. 2 answers
2. 3,628 views
An object is placed at a distance of 60 cm from a converging lens with a focal length of 20 cm. What is the magnification of the
1. 0 answers
2. 505 views
An object is placed at a distance of 6 cm from a concave mirror and an image is produced at a distance at a distance of 14 cm
1. 0 answers
2. 529 views
A ray of light perpendicular to a medium produces a refracted ray measuring 45º. *True False
1. 1 answer
2. 670 views
The critical angle is the angle at which a ray of light is no longer refracted but completely reflected. True or false?
1. 0 answers
2. 436 views
When light goes from a medium that is less dense to a medium that is more dense, the angle of the refraction is greater than the
1. 1 answer
2. 531 views
A real image is usually inverted, but can be upright in special cases. True or false?
1. 0 answers
2. 422 views
An object inside of the focal point of a concave mirror produces an image that is...
1. 1 answer
2. 691 views
The angle of reflection of a ray of light striking a plane mirror is ½ the angle of incidence. True or False?
1. 1 answer
2. 478 views
An object is placed at a distance of 25 meters from a concave mirror with a focal length of 20 meters. The image produced is a
1. 1 answer
2. 483 views
An object is placed at a distance of 8 meters from a concave mirror with a focal length of 6 meters. The image produced is a
1. 1 answer
2. 475 views
Jill pulls on a rope to lift a 12 kg pail out of a well, while the clumsy jack watches. For a 10.0 meter segment of the lift,
1. 2 answers
2. 3,015 views
A spherical balloon is inflated at the rate of 1 cm^3 per minuter. At the instant when the radius r=1.5,(a.) how fast is the
1. 4 answers
2. 783 views
The length l of a rectangle is decreasing at the rate of 3cm/sec, while its width w is increasing at the rate of 3cm/sec. Find
1. 2 answers
2. 1,214 views
A glacier advances at 7 × 10−6cm/s. How far will it move in 3.7 y? Answer in units of cm. I have calculated that there are
1. 1 answer
2. 727 views
Sodium + Sulfuric Acidand Phosphoric Acid + Magnesium Hydroxide a.write the formula b. supply the product c.type of reaction d.
1. 1 answer
2. 789 views
Let f(a,b) = 2a - 3b^2 + 7. If f(b,3) = 90, then what is b?Thank you for helping!
1. 1 answer
2. 436 views
If f(x)=5x-12, find a value for x so that f^-1(x)=f(x+1).Thank you so much
1. 1 answer
2. 1,039 views
If 1 < x < 9/8, which is bigger, ∛3x or √2x.
1. 1 answer
2. 553 views
Simplify: ( 7/2+5/6 )^2 - ( 7/2-5/6 )^2
1. 2 answers
2. 395 views
If 1 > x > 9/8, which is bigger, ∛3x or √2x.
1. 2 answers
2. 347 views
Without doing the computation explain why or why not19.7 is a reasonable value for the expression 122.14÷6.2.
1. 1 answer
2. 607 views
I am trying to find the rule for a function table with input 2, output 30; input 3, output 48; input 4, output 66.
1. 1 answer
2. 595 views
A 78 kg bag of mortar mix is sitting in the back of a truck rounding a traffic circle of radius 27 m at a speed of 21 km/h.
1. 0 answers
2. 587 views
Find the inverse of the function:f(x) = e^(4x+2) - 10
1. 1 answer
2. 422 views
Help Please! The LCM of two numbers is 60. The GCF of the numbers is 5. One number is 5 more than the other. The numbers
1. 1 answer
2. 569 views
The inside diameter of the automobile wheel bearing sets at a factory is expected to be normally distributed with a mean of
1. 2 answers
2. 587 views
Steps for drawing an acceleration time graph from a velocity time graph and vice versa?lPlease give me proper steps
1. 0 answers
2. 771 views
Triangle GHI is an isosceles triangle.H is the vertex. If the measure of H is 73 degrees what is the measure of G? A.73 B.17
1. 3 answers
2. 1,086 views
Triangle ABC is an isosceles triangleIf the measure of B is 37 degrees what is the measure of C? A.37 B.53 C.106 D.143 I think
1. 5 answers
2. 680 views
Why do you think people wrestle alligators?
1. 2 answers
2. 779 views
To assert means toA.put into words forcefully b.pass along stories quickly C.compliment someone often D.explain something
1. 1 answer
2. 859 views
An incident is a singleA. event B.person C.memory D.discussion A?
1. 1 answer
2. 368 views
A parabola has a directrix y=-3, axis =4 and latus rectum equal to 2. find its equation.Please help me its for my homework
1. 1 answer
2. 2,171 views
Find the equation of a circle passing through and tangent to the line x-3y+8=0
1. 1 answer
2. 472 views
Give the equation of the circle tangent to both axes of radius 5 and in the 1st quadrant.Can you help me solve this?
1. 1 answer
2. 497 views
What are the equations of the circles tangent to the x-axis, of radius 4 and whose center is at (-2,y)Please help, how do I
1. 2 answers
2. 1,366 views
A point is equidistant from (-2,4) and (3,5). It is also equidistant from (-2,-3) and (6,-1). Find the pointPlease I need Help
1. 0 answers
2. 718 views
A point is equidistant from (-2,4) and (3,5). It is also equidistant from (-2,-3) and (6,-1). Find the pointPlease I need Help
1. 1 answer
2. 1,793 views
What is the equation of a line through (-2,5) and whose segment intercepted between the axes in the 2nd quadrant is 7sqrt2?Pleas
1. 1 answer
2. 592 views
What are the equations of the lines through (-5,-3) and passing at distance 2sqrt5 from (5,7)Please I really need your help. I
1. 1 answer
2. 494 views
What are the equations of the lines through (-5,-3) and passing at distance 2sqrt5 from (5,7)Please I really need your help. I
1. 1 answer
2. 626 views
What are the equations of the lines through (-5, -3) and passing at distance 2sqrt5 from (5,7)?This problem is confusing? How do
1. 1 answer
2. 759 views
What's the difference between possessive nouns and possessive pronouns?Are they the same
1. 1 answer
2. 597 views
How do you find out what your grade is on a paper?For example if there is 70 questions and you miss 10 how do you find out what
1. 1 answer
2. 510 views
A highway construction warning sign blinks on and off. In all, the sign is on for 0.88 of each minuite. For how many seconds is
1. 1 answer
2. 617 views
Define heat in science terms
1. 8 answers
2. 661 views
You may have heard "Nothing is Free" explain why this is true
1. 1 answer
2. 364 views
How many inches of matting are needed to frame an 8in by 11 in print?38?
1. 1 answer
2. 457 views
How many inches of matting are needed to frame an 8 in by 11 in print38in?
1. 1 answer
2. 533 views
When finding the perimeter you have to add the sides not multiply right?For example a rectangle is 14 width and 29 height would
1. 1 answer
2. 435 views
You see an optical illusion of an ever-upward spiral staircase. The climber trudges up and up and never gets anywhere, going in
1. 0 answers
2. 589 views
Three boys shared some cards. Peter had twice as many cards as Farid. The ratio of the number of cards Peter had to the number
1. 1 answer
2. 534 views
In a past presidential election, it was estimated that the probability that the Republican candidate would be elected was 2/3,
1. 0 answers
2. 798 views
We have to build a catapult that can launch a marshmallow at least 10 feet. Can anyone give me any ideas?
1. 1 answer
2. 1,189 views
7/6+(10-4)x535?
1. 4 answers
2. 758 views
As you simplify each expression below, which one requires finding the quotient of 80 divided by 2A.4+6x8/2 B.2x5x8/2 C.(2+5)x8/2
1. 1 answer
2. 578 views
A bag of apples weighs 22.3 ounces and costs $1.80. What is a good estimate of the price per ounce of the bag of apples?A.$1
1. 3 answers
2. 501 views
A bag of apples weigh 22.3 ounces and costs $1.80 What is a good estimate of the price per ounce of the bag of applesA.$1 B.10
1. 3 answers
2. 872 views
85/5+14x(12-8)82?
1. 1 answer
2. 329 views
7-2+3/3x5
1. 1 answer
2. 385 views
Batteries change ____ energy into _____ energyChemical and electric Converting the suns energy into electricity does not work if
1. 1 answer
2. 1,620 views
Ned has 24 caramal candies, 18 mints,and 12 chocolate bars. he wants to divide the candies into groups so that each group has
1. 6 answers
2. 687 views
What is the greatest common factors of 9 and 27A.3 B.6 C.9 D.18 C?
1. 3 answers
2. 844 views
Use estimation to determine which expression has the least valueA. 5 3/4 + 2 1/4 - 2 1/8= 8? B. 6 1/4 + 1 - 1 1/4= 6? C.8 1/3 -
1. 1 answer
2. 393 views
what is 1 2/3 times 3
1. 1 answer
2. 258 views
Jared and 5 friends wanted to make mac and cheese for lunch. they decided to use 3 boxes and each box needs 1` 2/3 cups of milk.
1. 1 answer
2. 617 views
School is out at 3:50 pm. Band practice is 2 1/2 hrs dinner takes 3/4 of an hour homework takes 1 1/4 hrs. You have to go to bed
1. 3 answers
2. 1,048 views
Elana bought three bags of dried fruit that weighed 1 7/10 3 1/4 and 2 3/5 about how many fruit did she buy6 7 10 8 6?
1. 6 answers
2. 649 views
Maria served 4 1/7 loaves of banana bread and 4 2/3 loaves of cranberry bread. About how many slices of bread did she serveA.80
1. 5 answers
2. 833 views
Round each number to the nearest whole number3/14
1. 3 answers
2. 506 views
2.36 rounded to the tenths place
1. 2 answers
2. 425 views
What does TRAC stand for
1. 0 answers
2. 380 views
Write a story for the following multiplication problem : 16x5Derrick gets $5 for every hour he works at the store. He works for
1. 1 answer
2. 623 views
A gas containing carbon and hydrogen analyzed as 85.6 % carbon and 14.4 % hydrogen. A 42.1 g sample of a gas occupied a volume
1. 2 answers
2. 1,157 views
Need help balancing chemical equation. Complete and balance the chemical equation. Be sure to include the states of the
1. 3 answers
2. 717 views
A 79.1 g mixture of the compounds calcium chloride and sodium sulfide is 80.9 % by mass sodium sulfide. The compound sodium
1. 1 answer
2. 1,100 views
A study on the amount of dye needed to get the best color for a certain type of fabric was conducted. The following data give
1. 0 answers
2. 494 views
Based on the balanced equation4Na + O2 → 2Na2O calculate the number of Na2O formula units formed when 60 Na atoms and 10 O2
1. 2 answers
2. 1,235 views
Based on the balanced equation4Na + O2 → 2Na2O calculate the number of Na2O formula units formed when 60 Na atoms and 10 O2
1. 0 answers
2. 513 views
Based on the balanced equation4Na + O2 → 2Na2O calculate the number of Na2O formula units formed when 60 Na atoms and 10 O2
1. 0 answers
2. 689 views
The triation of 50.00 mL of 0.025 00 M MES with 0.100 0 M NaOH. MES is a weak acid with pKa=6.27. Compute Ve, first. Show what
1. 1 answer
2. 1,274 views

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