Grant

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

Questions

The following questions were asked by visitors named Grant.

In the formula how do you know to divide by six?

Each element has a different set of energy levels. Use this fact to "explain" whay the colour of the light emitted by an element in the gaseous state is characteristic of the element. When an electron falls from one of the higher energy levels to a lower...

Hi everyone, I've got a career-related question. A few weeks ago, our class took a "Career Cruising" quiz, which is meant to help students explore career options that correspond to their interests and talents. Based on my quiz answers, my homeroom teacher...

If your house is heated by a furnace that blows hot air into the rooms, you are depending on the process of ______ to stay warm. Choices are: convection, radiation,conduction, heat

I'm not doing so well in ap chemistry. i think i'm not studying the right way. can anyone suggest how i can raise my grade? i do my homework but it doesn't seem to help.

Kirsten is in her lab, and reacts two unknown gases (A(g) and B(g)) to get nitrogen dioxide (NO2). Using her data, she is able to write the following balanced equation: 2A(g) + B(g) --> 2NO2(g) If she started with 8 L of A(g) and 3 L of B(g), how many lit...

What is phmpoc?

A force of 23.0 N is required to start a 3.1 kg box moving across a horizontal concrete floor. (a) What is the coefficient of static friction between the box and the floor? (b) If the 23.0 N force continues, the box accelerates at 0.50 m/s2. What is the c...

Case Eastern Junior College awarded 26 varsity letters in crew, 15 in swimming, and 16 in soccer. If awards went to 46 students and only 2 lettered in all sports, how many students lettered in two of the three sports? is the answe 13 lettered

What volume (in mL) of the base will react completely with 30.00 mL of 0.550 M HCl? 0.0500 M Ba(OH)2

What volume (in mL)of 0.0550 M calcium hydroxide is required to neutralize 38.00 mL of 0.0700 M nitric acid?

if 5g of CH3COOH reacts how many moles of CO2 will be produced?

What role does DNA play in helicase?

what nutrient works as a muscle builder and body repair worker

A farmer with 700 ft of fencing wants to enclose a rectangular area and then divide it into four pens with fencing parallel to one side of the rectangle. What is the largest possible total area of the four pens?

What is the scientific notation for 15 x 10 to the 5th?

How do you calculate the slope and intercept of a regression?

Please help! this is my worst subject! How did land-owning companies take advantage of the Homestead Act?

A ladder 10 m long rests on horizontal ground and leans against a vertical wall. The foot of the ladder is pulled away from the wall at 2 m/s. How fast is the top sliding down the wall when the foot of the ladder is 6m from the wall?

Use Newton’s method to approximate the root of x^2 + 4x + 2 = 0 between x = -4 and x = -3 .

Given the function f (x) = 3cos x for the interval 0 < x < 2pi, determine the concavity of the function, between the critical values

Given the function f (x) = 3cos x for the interval 0 < x < 2 sketch the graph of the function

A function is implicitly defined by x^2 - 4y^2 = 9 Find the equation of the tangent to the function at x = 1

A cone is inscribed in a sphere of radius a, centred at the origin. The height of the cone is x and the radius of the base of the cone is r, as shown in the diagram opposite. Find the height, x, for which the volume of the cone is a maximum. (HINT: show t...

Given f(x)=1+2cos x , find the area under the curve y=f(x) between x = pi/2 and 2pi/3.

The acceleration due to gravity near the surface of Mars is 3.72ms^-2 . A rock is thrown straight up from the surface with an initial velocity of 23ms^-2 . How high does it go?

The marginal cost for a product is given by dC/dq = 1000/sqrt3q+20, in hundreds of dollars, where q is given in thousands of units. Determine the cost in dollars involved in increasing product from 10 to 15 thousand units. If R(0)= C(0)= 0, the marginal r...

Fuel is flowing into a storage tank which can be filled to a depth of 6 metres. When the fuel started flowing the tank was already filled to a depth of 2.5m. If the rate at which the depth of fuel in the tank is increasing, in metres per hour is given by...

For the function f(x) = 3x2 − 5x − 7. Find the rate of change of f(x) at x = 3

Evaluate the integral of ∫(2x^2 −3)^2 dx

Eureka is 16 years younger than Renton. In 3 years Renton will be twice as old as Eureka. How old are they now? Eureka's Age: Renton's Age:

2 SO2 (g) + O2 (g) → 2 SO3↑ Assuming STP, how many grams of oxygen are needed to produce 19.8 liters of SO3?

Chloroform CHCl is an important solvent. It is produced by a reaction between methane and chlorine. How many g CH4 are needed to produce 50.0g CH4 +Cl3+ CH_4 + 3Cl_2 ->CHCl_3 + 3HCl}

The displacement, force, velocity, and acceleration vectors’ components are given. Calculate the magnitude and direction of each vector. (a) x = +15.0 cm, y = -12.3 cm. I am completely lost.

A board is 84 cm long. How many meters long is this board?

If sec x = -3, 0 < x < pi, find cot x.

A circle has the circumference 28.26cm. What is the area of the circle? use PI as 3.14. i am confused in how to even solve with the circumference to get the area. Please help

There are 5 numbers in a set of data. There are no repeated numbers. Which measure of data must represent a number in the set that is greater than 2 of the numbers in the set and less than 2 of the numbers? A. Median B. Mean C. Mode D. Range Can someone p...

A truck carries cartons packed with boxes. The boxes were 22 inches long on each edge. If 4 boxes completely fill the carton, what is the volume of carton in cubic feet?

Solve for x: (385)^2 - x^2 = (760.35)^2 - (637.4 - x)^2

A student mixes 5 mL of 2.00 x 10^-3 M Fe(NO3)3 with 5 mL 2.00 x 10 ^-3 M KSCN. They find that in the equilibrium mixture concentration of FeSCN^2+ is 1.40 x 10^-4 M. Find each of the following: the initial concentration in solution for Fe^3+ and SCN, the...

A family wants to fence a rectangular play area alongside the wall of their house. The wall of their house bounds one side of the play area. If they want the play area to be exactly 1600ft^2, what is the least amount of fencing needed to make this? Round...

You have 4L feet of fence to make a rectangular vegetable garden alongside the wall of your house, where L is a positive constant. The wall of the house bounds one side of the vegetable garden. What is the largest possible area for the vegetable garden?

The science club sold 24 T-shirts last week and 18 T-shirts this week. What is the percentage of decrease in the number of T-shirts sold? A: 33% B: 25% C: 50% D: 75% How do you do this?

I am trying to work a problem to find flowrate, and a time to reach equilibrium. It sets up like this: I have a tank with a volume of 400 cubic feet full of compressed air at 50psi. The tank has an 8" schedule 40 carbon steel pipe coming off of it with a...

Using the equation, y=-2/3x-2, find the equation of the line that is parallel and has the ordered pair (3,3). Write the answer in standard form.

A drug is administered every 6 hours. The kidneys eliminate 55% of the drug over that period. The initial dose is 210 mg. Repeated dosage is 70 mg What is the “Difference equation”? Find the first seven terms of the of the solution sequence. Round to two...

I need to get which property of multi-plication this person did. the problem is 2(3.45+5.7)=.402 but I got 18.3. HOW?!??!?! I did my math I did every property I could think of/

1. 2(y + 1) for y = 2 (1 point) 6 5 7 8 2. start fraction lower d plus lower g over lower h end fraction for d = 29, g = 16, and h = 9 (1 point) 8 2.375 5.375 5 3. The cost in dollars of a school banquet is 74 + 12n, where n is the number of people attend...

What is [Al(H2 O)5(OH)2+] in a 0.15-M solution of Al(NO3)3 that contains enough of the strong acid HNO3 to bring [H3O+] to 0.10 M?

Why were Central American civilizations more developed than North or South America?

Sarah can bicycle a loop around the north part of Lake Washington in 2 hours and 50 minutes. If she could increase her average speed by 1 km/hr, it would reduce her time around the loop by 6 minutes. How many kilometers long is the loop? (Round your answe...

The density of lead is 11.34 g/cm3 and the density of aluminum is 2.69 g/cm3. Find the radius of lead and aluminum spheres each having a mass of 70 kg. (Round your answers to two decimal places.) Iam lost on everything I got this far p(4/3)πr^3=m r-(3m/(4...

Two planes flying opposite directions (north and south) pass each other 80 miles apart at the same altitude. The northbound plane is flying 200 mph (miles per hour) and the southbound plane is flying 150 mph. How far apart are the planes in 20 minutes? (R...

Two planes flying opposite directions (north and south) pass each other 80 miles apart at the same altitude. The northbound plane is flying 200 mph (miles per hour) and the southbound plane is flying 150 mph. When are the planes 200 miles apart? (Round yo...

Ann and Bob start moving from the same location. Bob starts moving 3 seconds after Ann. Ann moves East at a speed of 6 feet/sec. Bob moves South at a speed of 5 feet/sec. Find the distance between Ann and Bob 9 sec after Ann starts moving Ann(6t,0) Bob(-5...

Suppose two cars depart from a four-way intersection at the same time, one heading north and the other heading west. The car heading north travels at the steady speed of 20 ft/sec and the car heading west travels at the steady speed of 36 ft/sec. (a) Find...

Steve and Elsie are camping in the desert, but have decided to part ways. Steve heads north, at 6 AM, and walks steadily at 3 miles per hour. Elsie sleeps in, and starts walking west at 3.5 miles per hour starting at 9 AM. When will the distance between t...

In each case, find a quadratic function whose graph passes through the given points. (If there is no solution, enter no solution.) (0,0),(1,1),(3,-1)

Let P and Q be n × n permutation matrices and v ∈ R^n a vector. Under what conditions does the equation P v = Qv imply that P = Q?

Given that f(-0.5)=2 and f'(-0.5)=4, using tangent line approximation you would estimate f(0) to be: A.4 B.-3 C.0 D.1 E.-2

what is the minimum value of f(x)=3xe^x

a particle moves along a line so that at time t where 0<=t<=pi, its position is given by s(t)=-4sint-t/2+10. What is the acceleration of the particle the first time its velocity is zero?

Answers

The following answers were posted by visitors named Grant.

so i would do.. 23N - friction= 3.1(or 30.38N) *.5 and get f=7.81 then 7.81 = mu k * mu g ?

Answer is 12250

Ya, the answer is D

Going to be about 1-2 hertz fyi, 345/pipe1 345/pipe2 and difference

Idiocracy. It's not a movie.

The answer is 5.73 moles Au

Looking up the answers will not help you on the physics test. Try looking in your book or reading guides for additional help.

damon your answer is wrong i hate you

is the answer A. Median Ms. Sue?

World War 2 Squardon

Look at the bottom link

Ke=1/2pmv²=j 1/2×90=45 2205÷45=49

vbig/vsmall = (55/24)(1.3^2/1.9^2) His answer was backwards.

that not answer

thanks thats worked

Thanks I put it in and it said it was wrong?

thanks that worked how did you get 31.4min?

you can include minutes