 Lv 1106 points

# jaiden

Questions0
• ### Physics help faastttttt!!!!!!!. its very urgent.. help?

a string is plucked producing 4 Loops the length of the string is 12 meters the wavelength of the wave must be

a) 48 m,

b) 24 m

c) 6 m

d) 3m

• ### help with bio help!!?

I need help with writing the paragraph. I am in grade 12 and I need help on writing this plz help!! thank you!!>

Your assignment is to summarize (in several paragraphs) how the mass extinction of the dinosaurs affected the evolution of mammals.

Your answer should use the language of evolutionary theory from this module, and should mention "punctuated equilibrium" as part of your explanation.

• ### Help with this question. The human Genome Project!!!!!!!!. its urgent?

What are the implications for society as a result of this research? Include and describe at least 2 implications.

Other - Education3 months ago
• ### Chemistry.. help!!!! pls help me fast. its urgent?

1) If 358 g of KNO3 are dissolved in 650 mL of water at 80°C, at what temperature will solid settle out when it is cooled?

4) a. If a solution containing 40.0 g of KNO3 in 100 g of water at 100°C is cooled to 25°C, how much of the solid will settle out?

b. If you poured out half of the solution in (a) at 100°C, how many grams of the solid will the remaining solution contain?

c. If instead of pouring out as in (b), you boil away 50 mL of water and return the to 25°C, how many grams of solid will now remain in the solution?

• ### The Human Genome Project Help!!.. Fast!!!!?

-How the project was done?

-Who and where was the work done?

-How long did the project take?

- What is the size of the human genome?

- What are the implications for society as a result of this research? Include and describe at least 2 implications.

Other - Education3 months ago
• ### Physics help!!>. I need help fast. please. I will give a full 5 stars. thank you?

A string has a length of 2.50 m and is fixed at the ends. At a frequency of 85.0 Hz, a standing wave with 5 loops is formed.

a. What is the wavelength of the waves that travel on the string?

b. What is the speed of the waves?

c. What is the wavelength of the wave when it is vibrating at the fundamental frequency of the wave?

d. What is the fundamental frequency of the wave?

e. At what frequency would the third overtone occur?

• ### Physics, help!! fast, please. I need help fast!!. I will give a full 5 stars. I need help thank you. help!! fast!! ?

A pulse of the shape below originates in spring A. The speed of the pulse in this spring is 4.0 m/s. Another spring, B, is connected to spring A. The speed of the pulse in spring B is 2.0 m/s. The “short” end of the original pulse is the right side with the steep decline.

1) Draw a diagram showing the reflected pulse. In your diagram, pay particular attention to the wavelength of the reflected pulse, the amplitude of the pulse, whether or not it is inverted, and in what direction the “short” end of the pulse is facing.

2) Draw a diagram showing the partially transmitted pulse. In your diagram, pay particular attention to the wavelength of the transmitted pulse, the amplitude of the pulse, and in what direction the “short” end of the pulse is facing.

3)Of the quantities, speed, wavelength, frequency, and amplitude, which of these does not change as a wave is partially reflected or partially transmitted?

4)Of the quantities, speed, wavelength, frequency, and amplitude, which of these is always decreased in size as a wave is partially reflected or partially transmitted?

• ### I need help with this 1 question fast I don't know how to do it, pls help me fast, in the award, I will give full 5 stars!!! pls,?

2. Differentiate: 𝑦 = (3𝑥 − 1/3x)^6 Leave your final answer as a product of unexpanded rational expressions. There should be no negative exponents or radicals in your final answer.

Mathematics4 months ago
• ### hi I need help fast, there are 3 math questions. I don't have time at all, I need help pls fast, I need help fast!!, in reward 5 full stars?

1) Find the equation of the tangent to the curve 𝑥^2𝑦^3 − 𝑥^3𝑦^2 = 12 at the point (-1,2). Show all work. State your equation in general form: 𝐴𝑥 + 𝐵𝑦 + 𝐶 = 0.

2) A circle has equation 𝑥^2 + 𝑦^2 + 2𝑥 − 6𝑦 = 15 , with the centre C at point (-1,3).

Prove that the tangent at point P(2, -1) is perpendicular to the radius: line CP.

3)Find dy/dx of the following equation in terms of 𝑥 and 𝑦. Simplify your final answer into a rational expression in the form A/B, where both 𝐴 and 𝐵 both contain a term with a radical expression.

(^x)√x+y = 1 - xy

Mathematics4 months ago
• ### i need help with this question fast I don't know how to do it, pls help me fast, in the award, I will give full 5 stars!!! pls help me fast?

2. Differentiate: 𝑦 = (3𝑥 − 16/3x)^6 Leave your final answer as a product of unexpanded rational

• ### Math Help!- hi, I need help fast, its a math question!. I would give 5 stars to the person who did it right, there are 4 questions. pls help?

1) Find dy/dx if 2𝑥^3 - 3xy + y^2 = 6

Your final answer should be a rational expression in terms of x and y.

2) Find the equation of the tangent to the curve 𝑥^2𝑦^3 − 𝑥^3𝑦^2 = 12 at the point (-1,2). Show all work. State your equation in general form: 𝐴𝑥 + 𝐵𝑦 + 𝐶 = 0.

3) A circle has equation 𝑥2 + 𝑦2 + 2𝑥 − 6𝑦 = 15 , with the centre C at point (-1,3).

Prove that the tangent at point P(2, -1) is perpendicular to the radius: line CP.

4) Find dy/dx of the following equation in terms of 𝑥 and 𝑦. Simplify your final answer into a rational expression in the form A/B, where both 𝐴 and 𝐵 both contain a term with a radical expression.

(_^x)√x+y=1-xy

Mathematics4 months ago