09/29/23

Physics Problem: slopes and angles

A skier goes down a slope with an acceleration of 4.1 m/s^2. If we ignore friction and air resistance, wat is the angle of the slope with respect to the horizontal direction?
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09/29/23

What is the chemical formula for the limiting reactant in the reaction shown? Write the balanced chemical equation for the reaction, using lowest whole-number coefficients.
What is the chemical formula for the limiting reactant in the reaction shown?chemical formula: ?Write the balanced chemical equation for the reaction, using lowest whole-number... more
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09/29/23

A sample of 6.50 g of liquid 1‑propanol, C3H8O, is combusted with 37.1 g of oxygen gas. Carbon dioxide and water are the products.
A sample of 6.50 g of liquid 1‑propanol, C3H8O, is combusted with 37.1 g of oxygen gas. Carbon dioxide and water are the products.Write the balanced chemical equation for the reaction.... more
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09/29/23

Applications of Trigonometric Functions

The angle of elevation to the top of a building changes from 28 degrees to 56 degrees as an observer advances 170 feet toward the building. Find the height of the building, x, to the nearest foot
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09/29/23

Physics problem question
A football kicker kicks a football with an initial speed of 22 m/s at an angle of 37 degrees above horizontal. Ignoring air resistance, how high did the ball go?
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09/28/23

How many moles of CO2 are emitted into the atmosphere when 17.6 g C8H18 is burned?
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09/28/23

Let f(x) = e^x-1 + 5ln(x) +3x. You may assume f(x) is one-to-one. What is f^-1(4)?
Let f(x) = ex-1 + 5ln(x) +3x. You may assume f(x) is one-to-one.What is f-1(4)?f-1(4)= ?
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09/28/23

The acceleration of gravity is 9.81 m/s 2 . What was the cat’s speed when it slid off the table? Answer in units of m/s.
A cat chases a mouse across a 1.7 m high table. The mouse steps out of the way, and the cat slides off the table and strikes the floor 1.4 m from the edge of the table. The acceleration of gravity... more
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09/28/23

The acceleration of gravity is 9.8 m/s 2 . By how much vertical distance does the ball clear the crossbar? Answer in units of m.
To win the game, a place kicker must kick a football from a point 19 m (20.7784 yd) from the goal, and the ball must clear the crossbar, which is 3.05 m high. When kicked, the ball leaves the... more
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09/28/23

Combustion analysis of an unknown compound containing only carbon and hydrogen produced 2.277 g of CO2 and 1.161 g of H2O. What is the empirical formula of the compound?
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09/28/23

Organic Chemistry Density

If an experiment asks you to use 16.5 mmol of an organic liquid that has a molecular weight of 163.52 g/mol and a density of 0.946 g/mL, what volume (in mL) should be measured out? Give your answer... more
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09/28/23

Given a Regular Hexagon with area of 54 radical 3 m2 find the side lengths of the hexagon.
use the formula A=1/2aP(a) stands for apothem and (P) stands for perimeter
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09/28/23

Suppose that  𝐴=ln𝑥  ,  𝐵=ln𝑦  and  𝐶=ln𝑧 .
Suppose that  𝐴=ln𝑥  ,  𝐵=ln𝑦  and  𝐶=ln𝑧 .Write ln(𝑦^3⋅√𝑥/𝑧^2⋅𝑒^4) in terms of  𝐴,  𝐵  and  𝐶  .    Show your work.Your answer should not include any logarithms.
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09/27/23

Find dy/dx or y' by implicit differentiation. Write the solution of each answers
Find dy/dx or y' by implicit differentiation. Write the solution of each answers1. x³y³ = 3xyAnswer: (y-x²y³)/(x³y²-x)2. xy²+2y³+3xy =2x²+y³ +3y²Answer: (4x-y²-3y)/(2xy+3y²+3x-6y)
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09/27/23

Write the balanced complete ionic equation for the reaction when BaCl2 and Na2CO3 are mixed in aqueous solution
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09/27/23

Short Answer Question Show work please

Billy walks around a square city block. On the first side his speed is 1 mph, on the second side his speed is 2 mph, on the third side his speed is 3 mph, and on the fourth side his speed is 4 mph.... more
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09/27/23

Sketch the graph of the following function and determine its domain and range.
1. f(x)= x² - 81/ x+92. f(x)=√9-x²3. f(x) = {x² -1 if x<3 at x= 3 {x+5 3≥x
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09/27/23

Find dy/dx or y' by implicit differentiation. Write the solution of each answers

1. x³y³ = 3xyAnswer: (y-x²y³)/(x³y²-x)2. x²+2y³+3xy =2x²+y³ +3y²Answer: (4x-y²-3y)/(2xy+3y²+3x-6y)
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09/27/23

What is the equation,in point-slope form,of the line parallel to the line y=3x+2 through point (-1,6)
What is the equation,in point-slope form,of the line parallel to the line y=3x+2 through point (-1,6)
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09/27/23

Find the derivative of the following using the definition of derivative. Write the solution of this answer. Use Limits of Delta X approaching zero
3. y = √xAnswer: 1/2√x4. f(x) = 1/3xAnswer: -1/3x²
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09/27/23

Physics Velocity Question
A cannon tilted upward at θ = 27 degrees fires a cannonball with a speed of 91 m/s. At that instant, what is the component of the cannonball’s velocity parallel to the ground?(I know how to do... more
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09/27/23

PHYSICS PROBLEMS-Vectors (I am very confused)
(I do not really understand how problems like this work, any explanation would be appreciated)Find the x- and y-components of the vector d→ = (4.0 km, 29 degrees left of +y-axis).Express your... more
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09/27/23

At 423K, this reaction has a Kc value of 0.0659.

At 423K, this reaction has a Kc value of 0.0659. X(g)+Y(g)—><— 2Z(g). Calculate Kp at 423K. Note that the pressure is units of atmosphere(atm)
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09/27/23

Find the area of the regular polygon with the given radius or apothem. Leave your answer in simplest radical form.
https://hudsonisd.instructure.com/assessment_questions/148995/files/439475/download?verifier=Vn4NJoR1vmmyQq934lNbCDzsPsgY2sP20F7EfpTk
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09/27/23

One base of a trapezoid is twice as long as the other. The height is the average of the two bases. The are is 324 cm2. Find the height and lengths of the bases.
Let the lengths of the bases be 2x and 4x
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