# total normal stresses of 110 and 40 kpa are applied to two planes at right angles in an element of soil. the shear stress acting on those palnes is 20 kpa. what must be the value of the pore pressure

33,844 results, page 92-
## PHYSICS

A car is travelling at 60km/h when applies his brakes.If the car decelerates uniformly at 5.6m/s2,how far does the car go after the brakes are applied before coming to rest?

*asked by HEJUMACLA on October 19, 2015* -
## Chem

volume = 322 mL temperature = 150 celcius pressure = 175 kPa mass = 0.448 Calculate the molar mass of the gas. First I converted volume to 0.332 L. Second I converted 150 celcius into 423 kelvin. PV = nRt (175)(0.322) = n(8.314)(423) n= 0.016022988 molar

*asked by Lena on July 6, 2009* -
## Computer Science

Write a program that reads the subtotal and the gratuity rate in this order, then computes the gratuity and total. For example, if the user enters "10" for subtotal and "15" (%) for gratuity rate, the program displays "1.5" as gratuity and "11.5"

*asked by Anonymous on September 23, 2013* -
## Health economics

Suppose you are to specify a short-run total variable cost function for a nursing home. Explain the variables you would include in the function. What is the expected relation between a change in each of these variables and short-run total variable costs?

*asked by Mike on September 3, 2012* -
## math

If you walk 5/ 8 mile and then jog 4/ 7 mile, what is the total distance covered? How much farther did you walk than jog? The total distance covered is nothing miles. (Simplify your answer. Type an integer, simplified fraction, or

*asked by nathan on September 7, 2018* -
## Calculus

The total stopping distance T of a vehicle is T=2.5x+0.5x^2 where T is in feet and x is the speed in miles per hour. Approximate the change and percent change in total stopping distance as sped changes from x=25 to x=26 miles per hour. I started taking the

*asked by Lindsay on December 17, 2013* -
## math

Hi could you see if I did this one right The pie chart below shows how the total annual income for a certain family is spent. If the amount budgeted for Housing and Entertainment combined is$25,200 , what is the total family income? Housing is 22% and

*asked by mary ann on January 14, 2015* -
## math solve the problem using the four step plan

At the end of their 3-day vacation, the Palmers traveled a total of 530 miles. On the third day,they drove 75 miles. On the second day,they drove 330 miles. How many miles did they drive the first day? I can only solve this by adding the second, and third

*asked by Nathan on September 20, 2016* -
## maths

When buying Brilliant T-shirts, Bradan determines that the total cost of buying N shirts is given by the function C(N)=0.04N2−36N+9000 If he wants to minimize the total cost of buying shirts, how many shirts should he buy?

*asked by number theory on March 27, 2013* -
## Math

Travis has a total of $6,000 invested in two accounts. The total amount of interest he earns from the accounts in the first year is $420. If one account pays 6% per year and the other pays 9% per year, how much did he invest in each account?

*asked by Gabriel on September 30, 2014* -
## 8th grade math

on a recent space shuttle mission the astronauts traveled 105,000 miles during the first 3 days of their mission. this distance was 5/8 of the total distance they would travel. what was the total distance the astronauts would travel?

*asked by taylor on September 9, 2014* -
## chem please help drbob222

In the roasting of zinc ore, the total enthalpy for the reactants is -412.0 kJ and the total enthalpy for the products is -1294.54 kJ. What is the enthalpy for the roasting reaction? A. 882.54 kJ B. -1706.54 kJ C. 1706.54 kJ D. -882.54 kJ I think the

*asked by Morgan on November 25, 2014* -
## math

In the below figure, EB is tangent to the circle with center $C$ at the point B. If EC is equal to the diameter of the circle, find the measure of angle BAD in degrees. and here is the ugly LaTeX [asy] pair C = (0,0), B = dir(110), D = dir(170), E2 = 2 *

*asked by halp on August 12, 2017* -
## Physics

Please help me with this its very hard to visualize the problem. The analytical method of adding vectors expressed in terms of their components may be applied to vectors in three dimensions, for which graphical work is inconvenient. Find the magnitude of

*asked by Donna on September 26, 2016* -
## physics

Two forces are applied to a car in an effort to move it, as shown in the following figure, where F1 = 428 N and F2 = 358 N. (Assume up and to the right as positive directions.) a) What is the resultant of these two forces? magnitude and direction b) If the

*asked by jill on March 1, 2012* -
## Physics 11 damon pls URGENT!

The coefficiant of friction between rubber tires and wet pavement is 0.5, and the breaks are applied to 750kg car, intitally travelling at 30m/s and the car skids to a stop. What is size and difection of the acceleration. How do i find acceleration of the

*asked by Jaena MacCharly on October 31, 2016* -
## Math

I need to research the following fractal-related topics and find enough information to write five sentences. a. a Peano curve b. the devil's staircase c. self-similarity d. space-filling curve I also need to find out how the concept of fractals is applied

*asked by Anna on April 7, 2009* -
## Physics

A ball of mass 0.1 kg is suspended vertically from the ceiling with a "massless" string and brought to rest. The string is one meter long. When a force of 0.5N is applied 45 deg. below the horizontal, what will be the magnitude of the resulting angular

*asked by Guy on November 4, 2012* -
## physics

A car has an initial speed of 23.0 ms-1. In addition, there is also wind blowing in direction similar to the car with a force of 30 N. If the brakes are applied and the car skidded for 10 meters before coming to a halt, determine the kinetic friction of

*asked by aaron on May 15, 2011* -
## physics

A car has an initial speed of 23.0 ms-1. In addition, there is also wind blowing in direction similar to the car with a force of 30 N. If the brakes are applied and the car skidded for 10 meters before coming to a halt, determine the kinetic friction of

*asked by aaron on May 15, 2011* -
## Physics

If you have two objects, one four times heavier then the other, both at rest on a frictionless surface, and a person pushes against them for a distance of 5 meters. Assuming the force applied on both objects are equal, the kinetic enrgy of the light object

*asked by Harold on March 4, 2009* -
## Physics

A 0.140 kg baseball traveling 39.0 m/s strikes the catchers mitt, which, in bringing the ball to rest, recoils backward 13cm. Question- What is the average force applied by the ball to the glove? *Sigma Force= mass*acceleration

*asked by Mr. McKee on June 11, 2012* -
## algerbra 1

5. When managing a business, it is important to take inventory of where your money is spent. You have a monthly budget of $5,000. Refer to the table below and answer the questions that follow. Round your answers to the nearest tenth of a percent. Category

*asked by Connie on November 16, 2011* -
## Math help Geometery

If, I ahve a trapezoid with two angles Angle 86 degrees and 41 degrees and angle A 133 degrees then,side b 10 Short base 6 How do I solve to get angle B?

*asked by Corey on April 16, 2013* -
## math-algebra-angles

The degree measures of two angles of a triangle are consecutive even integers. If the measure of the third angle is 50 degrees more than twice the measure of the least angle. Find the measure of each angle.

*asked by Jason on November 16, 2007* -
## Physics

A cannonball is fired with a velocity of 200 m/s at an angle of 25 degrees above the ground. After the total flight of 45.6 seconds, the cannonball returns to the ground. Calculate: the initial horizontal and vertical components of the velocity, the

*asked by Anne on October 23, 2012* -
## Algebra

The RideEm Bicycles factory can produce 140 bicycles in a day at a total cost of $10,200 and it can produce 160 bicycles in a day at a total cost of $10,900. What are the company's daily fixed costs? What is the marginal cost per bicycle?(How do I find

*asked by Sandie on February 19, 2012* -
## Math

Can someone help me with this I am very confused When managing a business, it is important to take inventory of where your money is spent. You have a monthly budget of $5,000. Refer to the table below and answer the questions that follow. Round your

*asked by Jenna on June 29, 2008* -
## MATH!!

Joe and Susan invested $1500 at Bank of America in 2000, at 4% compounded quarterly. In the year 2005 they moved to another city and took the total money from their investment added $500 and invested in at Bank Bravo, at 5% compounded quarterly. a) What is

*asked by Anna on November 24, 2014* -
## chemistry

Explain whether C2H3Cl is polar or non-polar and why? Explain how electronegativity is applied to the answer.

*asked by John on March 29, 2010* -
## Chemistry

Describe how you can show that a chemical reaction adhers to the law of conservation of mass. Chemical reaction: magnesium hydroxide added to phosphoric acid produces magnesium phosphate and water. Find the mass percentage of each compound as well as the

*asked by Jessica on December 10, 2008* -
## math

Problem #1: Find the total amount if you deposit $500 at a rate of 5% for two years using simple interest. Year 1 Year 2 Problem #2: Find the total amount if you deposit $300 at a rate of 6% for three years using simple interest. Year 1 Year 2 Year 3

*asked by Boobear on April 12, 2013* -
## math

Reed scored 17 points in his teams last basketball game. This was 34% of the teams total points for the game. How many total points did the team score?

*asked by mon on February 4, 2014* -
## physics

(a) A car with a mass of 950 kg is moving to the right with a constant speed of 1.45 m/s. What is the total force on the car? (b) What is the total force on the car if it is moving to the left?

*asked by Anon on February 21, 2014* -
## Applications

In a recent year, he total sales at Restaurant A were 25,000 more than at Restauant B . Total sales at the two stores were 575,000,000 What are the sales for the two stores. Please help me solve this problem

*asked by Sam on November 13, 2009* -
## science

A 2.5L flask contains 0.25mol each of so2 and n2 gas at 27 ° c. calculate the partial pressure exerted by each gas and also the total pressure exerted by each gas and the total pressure. name the law on which it is based

*asked by Hafeeza on November 9, 2015* -
## Physics

A force of 20N applied parallel to the surface of a horizontal table,is just sufficient to make a block of mass 4kg move on the table.calculate the coefficient of friction between the block and the table.

*asked by Jeremiah on February 11, 2012* -
## physics

a force of 20n applied parallel to the surface of a horizontal table is just sufficient to make a block of mass 4.kg move on the table caculate thd coefficient of friction between the block and the table

*asked by fawaz on October 26, 2011* -
## math

The stopping distance d of a car after the brakes have been applied varies directly as the square of the speed r. If a car traveling 40 mph can stop in 100 ft, how fast can a car travel and still stop in 256 ft?

*asked by tevita on February 21, 2016* -
## physics

a force of 20n applied parallel to the surface of a horizontal table is just sufficient to make a block of mass 4.kg move on the table caculate thd coefficient of friction between the block and the table

*asked by fawaz on October 26, 2011* -
## physics

A train is speeding along a straight, level track at +20.0 m/s when the engineer applies the brakes, which results in an acceleration of -0.894 m/s2 as long as the train is in motion. How far does the train move during the 70 sec after the brakes are first

*asked by james on August 24, 2012* -
## Physics

A massive steel cable drags a 20kg block across a horizontal, frictionless surface. A 100N force applied to the cable causes the block to reach a speed of 4.2m/s in a distance of 2.1m . What is the mass of the cable?

*asked by Eric on May 30, 2015* -
## Physics

A train travels 30m/s then breaks are suddenly applied producing a retarding force equal to 1/10 of the weight of the train runs on the distance through which the train runs on the track before coming to rest in.

*asked by Naveen on December 21, 2017* -
## Physics - Inclined Motions

You are pushing a 53kg crate at a constant velocity up a ramp onto a truck. The ramp makes an angle of 22deg with the horizontal. If your applied force is 373N, what is then coefficient of friction between the crate and the ramp?

*asked by Shaila on August 11, 2010* -
## Physics

A block (weight= 10kg) is sitting on a surface with friction (coefficient= 0.5). A force (push) is applied to the end of the block, 35 degrees below the horizontal. Calculate the magnitude of the force to move the block.

*asked by Frederic on October 16, 2012* -
## physics

The resistance of a 395 m long aluminum rod is 3580 . A. Find the cross-sectional area of the rod mm2 B. Find the current in the rod when a potential difference of 14 V is applied across the ends. A

*asked by Anonymous on February 20, 2012* -
## physics

A student has just started pulling hard enough for a crate to start accelerating into motion. At that particular instant, what is the net force on the crate if the force of friction has magnitude 200 N and the applied force is 225 N?

*asked by Rebecca on October 8, 2012* -
## physics

Five hockey pucks are sliding across frictionless ice. The drawing shows a top view of the pucks and the three forces that act on each one. The forces can have different magnitudes (F, 2F, or 3F), and can be applied at different points on the puck. Only

*asked by ram on October 22, 2014* -
## Physics

A box with a mass of 4.0kg is sitting on a plane angled at 60degrees above the horizontal. The coefficient of friction between the box and the plane is 0.3. What is the horizontally applied force necessary to stop the box from sliding down the ramp?

*asked by Jared on January 2, 2011* -
## Math

1. Identify the decimal And simplified fractional form of 60%. A. 0.6 and 4/5 B. (0.6 and 3/5) C. 0.06 and 3/5 D. 0.06 and 6/10 2.A baseball team wins 45% of its games. What fraction of games does it win? A. 8/20 B. 9/25 C. (9/20) D. 8/25 3. According to a

*asked by Help I need somebody not just anybody on February 13, 2017* -
## Physics

Find the magnitude of the acceleration (in m/s2) for an electron in a uniform electric field with a magnitude of 100 N/C. and Find the time it takes (in sec) for an electron initially at rest in a uniform electric field of 110 N/C to reach a speed of 0.01c

*asked by Katie on September 19, 2012* -
## ap chemistry

Carbon monoxide reacts with oxygen to form carbon dioxide by the following reaction: 2CO2 + O2 yields 2CO2 Delta H for this reaction is -566 kJ/mol run. What is the delta H for CO? 1). +270 kJ/mol 2). -110 kJ/mol 3). +65 kJ/mol 4). -405 kJ/mol 5). -65

*asked by bridget on October 18, 2012* -
## Physics

Find the magnitude of the acceleration (in m/s2) for an electron in a uniform electric field with a magnitude of 100 N/C. and Find the time it takes (in sec) for an electron initially at rest in a uniform electric field of 110 N/C to reach a speed of 0.01c

*asked by Katie on September 19, 2012* -
## Physics

An RLC series circuit has a 2.60 Ω resistor, a 110 µH inductor, and a 70.0 µF capacitor. (a) Find the circuit's impedance (in Ω) at 120 Hz. (b) Find the circuit's impedance (in Ω) at 5.00 kHz. (c) If the voltage source has Vrms = 5.60 V, what is

*asked by EMG on April 5, 2018* -
## Physics

Bernoulli's equation is an expression of: the conservation of mass the conservation of total energy the conservation of kinetic energy the conservation of momentum the conservation of velocity My ans: the equation states that it should be a constant when

*asked by Nikita on December 2, 2009* -
## physics helppp!

The coeffcient of friction between the 7.9 kg mass and the table is 0.55, and the coeffcient of friction between the 5 kg mass and the table is 0.38. Consider the motion of the 37 kg mass which descends by the amount of y = 0.45m after releasing the system

*asked by kitt on March 1, 2007* -
## Math

Two triangles are similar, and the ratio of each pair of corresponding sides is 2 : 1. Which statement regarding the two triangles is not true? 1) Their areas have a ratio of 4 : 1. 2) Their altitudes have a ratio of 2 : 1. 3) Their perimeters have a ratio

*asked by Hannah on April 27, 2010* -
## math

The sum of the angles of a triangle is 180 degrees. In the figure below angle B and angle C are the same size. If angle A is 54 degrees smaller than angle B. Find the measure of each angle.

*asked by Anonymous on January 26, 2016* -
## Geometry

Which of the following angles lands in quadrant IV when placed in standard position? 265 degrees -280 degrees -5 degrees 135 degrees I know what IV quadrant means, but I don't get which one it is in degrees :/ Please help? Thanks

*asked by SkatingDJ on October 7, 2015* -
## SIXTH GRADE MATH

The ratio of boys to girls at a day care cent is 5 to 4. Which of the following cannot be the total number of children at the center? A. 27 children B. 54 children C. 60 children D. 72 children Is the answer 60. The reason I chose 60 children is because

*asked by Stephon on November 30, 2014* -
## Economics

Much of the demand for U.S. agricultural output has come from other countries. In 1998, the total demand for wheat was Q = 3244 – 283 P. Of this, total domestic demand was QD = 1700 – 107 P, and domestic supply was QS = 1944 + 207 P. Suppose the export

*asked by Joy on September 27, 2013* -
## Chemistry

Predict how the entropy of the substance is affected in the following processes: a) O2 (g,200 kPa, 300k) --> O2 (g, 100, 300k) b)Br2 (l, 1 bar, 25 degree C) --> Br2 (g, 1 bar, 25 degree C) C)Fe (s, 1 bar, 250 degree C)--> Fe(s, 1 bar, 25 degree C) will

*asked by Alexis on April 20, 2014* -
## physics

A force of 70.0 N is exerted at an angle of 30.0° below the horizontal on a block of mass 8.00 kg that is resting on a table. What is the magnitude of the normal force acting on the block?

*asked by keisha on October 9, 2009* -
## Science

2. A cable pulls a 15.0 kg crate at constant speed across a horizontal table.The tension in the cable is 60.0 N. 1. What is the frictional force and normal force?

*asked by Boberto on February 26, 2017* -
## Statistics

IF SAT scores have approximately a normal distribution with the mean being 550 and standard deviation of 90. How can I calculate the SAT scores of the 95th percentile? Thank you

*asked by Kerry on April 17, 2017* -
## Chemistry

The normal hormone adrenaline concentration (C9H13NO3) in blood plasma and 6,0x10^-8g / L. How adrenaline molecules are contained in 0.5L of plasma sanguine?

*asked by Nadia on January 26, 2016* -
## Math

find the z-scorerelated to the raw score,mean,and standard deviation. Assume a normal probability distribution Raw score= 56u=50,0=4

*asked by Mary on October 22, 2010* -
## Physics

A mass slides down a smooth incline, the normal force is exactly 1/3 the weight of the mass. Find the angle of the incline, relative to the horizontal.

*asked by Tara on May 26, 2015* -
## Math probability

Suppose x is random variable with normal distribution (u,sigma^2) distribution and p(x

*asked by Star on June 20, 2018* -
## Math

If an adult male is told that his height is within two standard deviation of the means of the normal distribution of height of adult males, what can we assume?

*asked by Anonymous on November 22, 2015* -
## Physics

Find the magnetic flux through a circular loop 6.0 cm in diameter oriented with the loop normal at 50 degrees to a uniform 60 mT magnetic field.

*asked by Debra on July 6, 2011* -
## Science

hello, we have got activity based question in school and it contains marks.. well here is the question Q1.if a person's wight is 355 N then that person would be (a)fat (b) normal (c) thin Thanks!

*asked by Rebecca Bhutto on February 5, 2010* -
## Calculus

An object moves from left to right along a parabolic shaped path y=(1/4)x^2. At the point (-2,1) the speed is 1. What normal acceleration is the object experiencing at that point?

*asked by Tony on February 16, 2016* -
## INTRO TO STATS

We record the neuroticism ratings of a group of subjects. The subjects have different scores and they fall into normal distributions. In this example, neuroticism is a(n): the answer is Variable, but WHY?

*asked by Alicia Estrada on March 9, 2015* -
## Science

The normal recommended amount of Vitamin C is 1,000 milligrams (mg) per day for non-pregnant women. During pregnancy how much vitamin c does a pregnant woman need?

*asked by Diamond on February 1, 2010* -
## math

Explain the notation M^-1 used for the inverse of a square matrix M. I thought M^-1 would be a normal inverse matrix except the numbers would be vertically switched like in fractions...? Not sure though.

*asked by maath on August 12, 2018* -
## Science

A force of 70.0 N is exerted at an angle of 30.0° below the horizontal on a block of mass 8.00 kg that is resting on a table. What is the magnitude of the normal force acting on the block?

*asked by Dan Sanchez on February 16, 2010* -
## Statistics homework distribution problem?

i need help with how to solve this: consider a normal distribution with mean 30 and standard deviation 2. what is the probability a value selected at random from this distribution is greater than 30? the book gives me the answer but i need to know how to

*asked by jess on February 20, 2012* -
## Physics

Two archers shoot arrows in the same direction from the same place with the same initial speeds, but at different angles. One shoots at 45.0degrees above the horizontal, while the other shoots at 60.0 degrees.If the arrow launched at 45.0 lands 225 from

*asked by Kara on October 15, 2010* -
## Managerial Economics

This is some HW for a Managerial Econ class. I've got what I think are the answers, and I'd just like someone to read over my reasoning & check my answers. Any assistance is appreciated. Thanks! 2.) A recent study of the Madison, Wisconsin market by

*asked by klynn on October 16, 2007* -
## ~CHEM~

If I had an equilibrium of CH3CO2(aq) + H(aq) CH3CO2H(aq) and the applied stress was HCl and NaOH what observations should I expect and what direction would the equliibrium shift? Same goes to this question equilibrium:Fe(aq) + SCN(aq) FeSCN(aq) the

*asked by Jason on May 16, 2007* -
## math

When grizzly bears hibernate, their heart rates go down to 10 beats per minute, which is 20% of normal value. What is a grizzly bear's usual heart rate when not hibernating?

*asked by Anonymous on August 23, 2013* -
## algebra

The mean on a Advanced Algebra test was 78 with a standard deviation of 8. If the test scores are normal distributed, find the interval about the mean that contains 99.7% of the scores. Use the empirical rule.

*asked by Katie on January 28, 2015* -
## Physics

A 23 kg child goes down a straight slide inclined 38 degrees above horizontal. The child is acted on by his weight, the normal force from the slide, and kinetic friction.

*asked by Leanna on March 3, 2013* -
## Physics

To move a box you pull on the handle as indicated in the diagram shown below with a constant force F. The mass of the box is m = 8 kg and the angle è = 22°. What is the magnitude of the normal force?

*asked by JennaPoop on November 6, 2012* -
## Algebra

The mean on a Advanced Algebra test was 78 with a standard deviation of 8. If the test scores are normal distributed, find the interval about the mean that contains 99.7% of the scores. Use the empirical rule.

*asked by Anonymous on February 4, 2016* -
## Statistics

in 2000, the averages change of tax preparation was $95. Assuming a normal distribution and a standard deviation of $10. What proportion of tax preparation fees were more than $95.

*asked by Leo Elvis on March 15, 2015* -
## Chemistry

The normal boiling point of bromine (Br2) is 58.8°C, and its molar enthalpy of vaporization is ΔHvap = 29.6 kJ/mol. Calculate the value of ΔS when 1.00 mol of Br2(l) is vaporized at 58.8°C.?

*asked by Josh G. on December 4, 2012* -
## statistics

The final mark in QTQ100T has a normal distribution with an average of 60% and a variance of 100. If we draw a sample of 4 students, the probability that the average mark is more than 56% is

*asked by Anonymous on September 4, 2014* -
## Statistics

In 2000,the average charge of tax preparation was $95.Assuming a normal distibution and standard deviation of $10.What proportion of tax preparation fees were more than $95?

*asked by Leslie Meagan on January 3, 2015* -
## statistics

a normal distribution has a mean of 20 and a standard deviation of 10. Two scores are sampled randomly from the distribution and the second score is subtracted from the first. What is the probability that the difference score will be greater than 5?

*asked by Velvet on December 13, 2016* -
## statistic

in 2000 the average charge of tax preparation was $95. assuming a normal distribution and a standard deviation of $10. What proportion of tax preparation fees were more than $95 ?

*asked by tolendoy on December 26, 2014* -
## grammar

The patient is alert and oriented and has normal mental status exam. Question: List verb/verbs I know there are two - Answer: is Answer: mental

*asked by Leslie on May 8, 2011* -
## chemistry

2.) How much heat must be absorbed at 1357 K to melt a bar of copper (80 * 10 * 12 cm) assume d = 8.93 g/cm^3. The normal boiling point is 1357 K, and heat of fusion is 13.05 KJ/mol.

*asked by Andrew on February 15, 2010* -
## statistics

A normal distribution has a mean of 36 and standard deviation of 4. What proportion of the distribution consisted of scores between x=34 and x=38? a, 0.6915 b, 2(0.3085)=0.6170 c, 0.1915 d, 2(0.1915)=0.3930

*asked by Robbie on November 9, 2012* -
## math

Benadryl is on sell this week for 20% off of the normal selling price at $10.00 per unit. If the pharmacy purchased Benadryl at $8.00 per unit, what is the gross profit percentage?

*asked by cham on July 28, 2014* -
## chemistry

Determine the molarity of in an aqueous solution at equilibrium with air at normal atmospheric pressure. The volume percent of in air is 20.65 Under an pressure of 1.00 , 28.31 of dissolves in 1.00 at 25.

*asked by sab on February 21, 2010* -
## math

The Nursing Home Problem. Suppose that the cost of nursing homes (per year) for the following states is as follows for 2004: Alaska: $165,000 Connecticut $95,000 Hawaii $85,000 New York $110,000 If each state had a $10,000 cost increase since 1994, rank

*asked by Aleah on July 15, 2009* -
## Phyics

A ray of light strikes a mirror at an angle of 26 degrees to the normal. What is the angle of reflection? Answer in units of degrees .

*asked by Maria on February 27, 2011* -
## Chemistry

Chlorine has two isotopes with mass number 35 and 37. Calculate the relative abundance of the two isotopes accounting for normal atomic mass of 35.5

*asked by Iyana on August 18, 2016*