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If the angle of incidence is 30 degrees, what is the angle of reflection?
1. 3 answers
2. 1,292 views
. Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state
1. 2 answers
2. 1,173 views
If two electrons (q = 1.60 x 10–19 C) are 1 m apart, what is the magnitude of theelectric force repelling the two electrons?
1. 0 answers
2. 454 views
if you weigh 100 pounds on earth than how much would you weigh on each other planet in our solar system
1. 0 answers
2. 1,112 views
Stereo Inc. sells a stereo system for $300 down and monthly payments of $80 for the next 3 years. If the interest rate is 3.25 %
1. 1 answer
2. 1,432 views
x=-2 output=12 x=1 output =9 x=4 output =6 help me solve
1. 1 answer
2. 287 views
x=-2 output=12 x=1 output =9 x=4 output =6 help me solve
1. 0 answers
2. 280 views
x=-2 output=12 x=1 output =9 x=4 output =6 help me solve
1. 0 answers
2. 288 views
how do you Prepare a 0.1 L of a 0.1 M NaCl solution, and describe the process in writing.
1. 1 answer
2. 409 views
how do you Prepare a 0.1 L of a 0.1 M NaCl solution, and describe the process in writing.
1. 1 answer
2. 382 views
What is 7 letter word for finished. 3rd letter is R and 5th letter is U
1. 1 answer
2. 761 views
Modern lasers can create a pulse of light that lasts only a few femtoseconds.(a) What is the length of a pulse of red light that
1. 0 answers
2. 533 views
Modern lasers can create a pulse of light that lasts only a few femtoseconds.(a) What is the length of a pulse of red light that
1. 0 answers
2. 643 views
in windows vista, how do you organize file list by file size?
1. 1 answer
2. 453 views
What volume does a mixture of 14.2g of helium and 21.6g of hydrogen gas occupy at 28 degrees celcius and .985atm?
1. 4 answers
2. 2,061 views
Ammonia reacts with oxygen gas to form nitrogen monoxide and water. At constant temperture and pressure, how many of nitrogen
1. 2 answers
2. 824 views
If line f is parallel to the line h, and line f has y-intercept 5, what is the equation of line f ? With h passing through two
1. 1 answer
2. 480 views
If line g passes through point (2, 2) and is perpendicular to the line h, then what is the equation of line g? With h passing
1. 1 answer
2. 989 views
If line f is parallel to the line h, and line f has y-intercept 5, what is the equation of line f ? With h passing through two
1. 1 answer
2. 437 views
If line f is parallel to the line h, and line f has y-intercept 5, what is the equation of line f ? With h passing h through two
1. 1 answer
2. 527 views
a rectangular sheet of plywood is seven times longer than its width,write an simlify an expression for the perimeter of the
1. 1 answer
2. 665 views
show that if L is any line through the origin in R3 and x is any vector with its initial point at the origin, then the
1. 0 answers
2. 630 views
At 20 degrees celsius the vapor pressure of dry ice is 56.5atm. If 10 g of dry ice (solid CO2) is placed in an evacuated 0.25 L
1. 0 answers
2. 1,013 views
two masses m' each are hanging with help of a light string,which passes over mass less pulley. mass A starts leaking out at a
1. 0 answers
2. 480 views
a student standing on the roof of a 50 meter high building kicks a stone at a horizontal speed of 4 meters per second, how much
1. 6 answers
2. 11,430 views
Solve the proportion for u.(u-2):(u+3) = 4:3
1. 1 answer
2. 413 views
Chapter 1 & 2 Review Questions1. Compare and Contrast the two main branches of physical science. 2. Distinguish between
1. 2 answers
2. 1,045 views
Does the flexible budget term mean A series of budgets for varying rates of activity?
1. 0 answers
2. 479 views
i am doing problems for chemistry class, and some of them are Calculating square root/ Cube Root but some are 4 and 5 instead of
1. 2 answers
2. 603 views
The pH of a solution that contains 0.818 M acetic acid (Ka = 1.76 x 10-5) and 0.172 M sodium acetate is__________. The Ka of
1. 4 answers
2. 3,457 views
The pH of a solution that contains 0.818 M acetic acid (Ka = 1.76 x 10-5) and 0.172 M sodium acetate is__________. The Ka of
1. 1 answer
2. 1,247 views
The pH of a solution that contains 0.818 M acetic acid (Ka = 1.76 x 10-5) and 0.172 M sodium acetate is__________. The Ka of
1. 1 answer
2. 1,075 views
The solubility of lead (II) chloride (PbCl2) is 1.6 x 10^-2 M. What is the Ksp of PbCl2?
1. 1 answer
2. 3,054 views
can a color blind female have a son that has normal vision? color blindness is caused by a sex linked recessive allele. N=normal
1. 0 answers
2. 801 views
need to identify the elements, compounds and mixtures of the iron and sulpher reaction.
1. 1 answer
2. 441 views
what is a social contract?
1. 1 answer
2. 514 views
What gravitational force do the two protons in the helium nucleus exert on each other? Their separation is approximately 1.0
1. 2 answers
2. 713 views
is a random sample of 500 students large enough to represent all of the full time college students in the united states?
1. 0 answers
2. 568 views
Two satellites A and B are in different circular orbits about the earth. The orbit speed of satellite A is three times that of
1. 1 answer
2. 798 views
Each of the space shuttle’s main engines is fed liquid hydrogen by a high-pressure pump. Turbine blades inside the pump rotate
1. 1 answer
2. 842 views
Find the relative extrema off(x) = -2x^2 + 4x + 3 I don't know how to use the First derivative test to find it.
1. 1 answer
2. 562 views
a molar elipticity [q]466 nm, 25 �Cof D(−) − Co(en)3I3.H2O and obtained -5940 deg.cm2.decimol-1. Calculate the elipticity
1. 0 answers
2. 341 views
in a tug of war a jeep of a mass 1400kg and a tractor of a mass of 2000kg pull on a horizontal rope in opposite directions. at
1. 5 answers
2. 1,502 views
Microbes in a certain colony exposed to radiation have a 1=6 chance of beingmutated. a. If ten microbes from the colony are
1. 0 answers
2. 393 views
a microscope has two types of these
1. 1 answer
2. 427 views
a microscope has two of these
1. 0 answers
2. 329 views
A study conducted by the Metro Housing Agency in a midwestern city revealed the information below concerning the age
1. 2 answers
2. 1,156 views
the molar mass of a newly synthesized jluorocarbon was measured in a gas microbalance, This device consists of a gkass bulb
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2. 984 views
How do i show work for this math question. A puppet requires 3/4 yard of material. How many puppets can be made from 9 yards of
1. 3 answers
2. 1,064 views
A picture hangs on the wall suspended by two strings, with è = 61°. The tension in string 1 is 1.8 N.è is connected to string
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2. 1,174 views
please help! physics doesn't click with me. thank you for your help!A 23 kg suitcase is being pulled with a constant speed by a
1. 1 answer
2. 567 views
A hot air balloon has just lifted off and is rising at the constant rate of 1.8 m/s. Suddenly, one of the passengers realizes
1. 0 answers
2. 563 views
An astronaut on Neptune drops a rock straight downward from a height of 0.95 m. If the acceleration of gravity on Neptune is
1. 3 answers
2. 814 views
(a) 455 cal to joulesthats 1 903.72 joules but i need to round it to 3 sig figs how do u do that?
1. 0 answers
2. 474 views
what is 2 to the first and second power? component problem
1. 1 answer
2. 200 views
It took a faster runner 10 sec. longer to run a distance of 1500 m than it took a slower runner to run a distance of 1000 m.If
1. 1 answer
2. 878 views
what is the role of derrivatives in the subjects other than mathematics.
1. 1 answer
2. 316 views
corp provides issuance of 200,000 shares of common stock. 40,000 shares were originally issued and 500 were reacquired. What is
1. 1 answer
2. 517 views
corp provides issuance of 200,000 shares of common stock. 40,000 shares were originally issued and 500 were reacquired. What is
1. 0 answers
2. 482 views
"A one meter board with uniform density, hangs in static equilibrium from a rope with tension T. A weight hangs from the left
1. 1 answer
2. 1,030 views
A ball is launched from ground level at 31.8 m/s at an angle of 35° above the horizontal. How far does it go before it is at
1. 4 answers
2. 1,697 views
A ball is rolled horizontally off a table with an initial speed of 4.0 m/s. A stopwatch measures the ball's trajectory time from
1. 1 answer
2. 903 views
An elevator cab in the New York Marriott Marquis has a mass of 4.96 x 103 kg and can carry a maximum load of 1.80 x 103 kg. If
1. 1 answer
2. 908 views
A 0.077-kg arrow is fired horizontally. The bowstring exerts an average force of 50 N on the arrow over a distance of 0.75 m.
1. 1 answer
2. 660 views
pg 142 What happened to the computer programer
1. 4 answers
2. 2,331 views
I have to hand in an assignment called WHO AM I? for my grade 10 career studies course, i just need to no what to hand in
1. 1 answer
2. 474 views
A harmonic oscillator has mass 0.530km and an ideal spring with force constant 146N/m .Find the period, frequency, and angular
1. 2 answers
2. 565 views
Given the following finite sum1/(1*2)+1/(2*3)+1/(3*4)+1/(4*5)+....+1/(n(n+1)) a) Find the first 5 partial sums b) Make a
1. 0 answers
2. 478 views
okay after the diver jumps foward from the diving board,the force of gravity will accelerate the diver PARALLEL to the direction
1. 2 answers
2. 593 views
if you put honey,water,dishwashing liquid and vegetable oil in a clear jar and then you add asmall of plastic cup, plastic fork,
1. 1 answer
2. 517 views
how do you work equation dealing friction and newtons when pulling the distance of a block
1. 0 answers
2. 335 views
examples of how humans have increased their food supply and what effects these methods have on the environment overall.
1. 2 answers
2. 468 views
i have 78% in the coursethe exam is worth 30% and i got 65% what is my overall mark in the course
1. 2 answers
2. 461 views
i have 78% in the coursethe exam is worth 30% and i got 65% what is my overall mark in the course
1. 1 answer
2. 981 views
a trianglar course for a sailing race is marked off by buoys. The first lef is 250 meters longer than the second and the third
1. 1 answer
2. 735 views
the first side of a triangle is 8 meters longer than the second side. the third side is 3 times the second side. the perimeter
1. 1 answer
2. 666 views
The vapor pressure of dichloromethane, CH_2Cl_2, at 0 degrees celcius is 134 mmHg. The normal boiling point of dichloromethane
1. 2 answers
2. 1,249 views
DQ sells 6 times as many orders of french fries as sonic everyday. If both sold 60 more orders DQ would only sell 3 times as
1. 2 answers
2. 482 views
The sweater shop projected income this year will be 69,000. That amount represents 40% of the shops annual sales. What is the
1. 1 answer
2. 937 views
If I gross 2645.00 and taxed 31% how much do I bring home?
1. 1 answer
2. 375 views
a wagon retails for 49.97 the store receives a built in 40% profit marginwhat is the cost
1. 1 answer
2. 375 views
I can buy office supplies @ walmart with a 30/10 chain discount. If I paid $47.25 for adding machine. What was the regular price
1. 1 answer
2. 574 views
I can buy office supplies @ walmart with a 30/10 chain discount. If I paid $47.25 for adding machine. What was the regular price
1. 1 answer
2. 536 views
If jack does home improvment and price the material ,add 1 and 1/2 times that amount for labor and then quotes the job. If he
1. 4 answers
2. 458 views
wagons retail for $49.97. stores receive the wagons with a 40% profit margin. what is the cost?
1. 1 answer
2. 500 views
please could someone help me answer this question -can science prove that God does exist? thankyou
1. 1 answer
2. 882 views
A worker exerts a 140 N horizontal force on a 41 kg crate. The crate's acceleration across a level floor is 0.90 m/s2. Find the
1. 0 answers
2. 751 views
answer.a car of mass 2000kg,increases its velocity from 10to 40 m\sec in time interval of 2 sec. calclate the force?
1. 1 answer
2. 412 views
I'm writing an essay about a book I read, and I need to make a personal connection with a character that is conceited, brave,
1. 1 answer
2. 1,131 views
How do you figure out the space and volume ratio cube
1. 1 answer
2. 353 views
Do you think it would have been possible to know that living things are made up of cells without microscopes? Explain your
1. 1 answer
2. 442 views
how to rewrite the expression using the inverse operation?
1. 1 answer
2. 366 views
what are a list of Adverbs
1. 1 answer
2. 529 views
Moon - 240000 mi Jupiter - 391000000. The space vehicle would take how many days to reach Jupiter? Saturday,
1. 0 answers
2. 495 views
How do you set this up as an equation?There is a total of 1600 cups and bowls. cups cost 1.90 and bowls cost 2.85. how many of
1. 1 answer
2. 509 views
explain how evalution and management e/m codes are grouped
1. 1 answer
2. 425 views
A projectile of mass m moves to the right with a speed vi. The projectile strikes and sticks to the end of a stationary rod of
1. 5 answers
2. 1,824 views
find the interval of convergence of the sum of ((x^1/2)/2 - 1)^k from k = 0 to infinity and within this interval find the sum of
1. 0 answers
2. 989 views
what is the derivative of 2^x?I know that it's something with ln but I can't find it in my notes
1. 2 answers
2. 366 views
3 4 7 8 9 find the product of the smallest number
1. 2 answers
2. 354 views

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