Arturo O.

03/12/18

Simple harmonic motion

A 200g object is attached to the end of a spring which rests on a smooth horizontal surfac while in equilbrium the object is pulled by 8cm and released if the maximum speed the object exhibit is... more

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Physics

03/12/18

In a roller coaster the mechanical energy is

Roller coaster

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Physics Physical Science

03/12/18

A ball is thrown up at 20 meters per second and it accelerates towards the ground at 10 meters per second squared. What will the velocity of the ball be in 1sec

and what will the velocity of the ball be in 3 seconds?

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Physics Physical Science

03/12/18

A windmill extracts 1000 Joules of energy from the wind and produces 100 Joules of electrical energy every 10 seconds. How much power is produced in Watts?

And what is the efficiency of the windmill

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Algebra Word Problem

03/11/18

A city has a population of 390,000 people. Suppose that each year the population grows by 4% . What will the population be after 10 years?

help me please and thank you

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Maths Functions Math Help

03/11/18

function notation

find g(x-1) when g(x) = x^2 + 2x + 3

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Quadratic Word Problem

03/11/18

An object is thrown upward from the top of a 112 foot building with an initial velocity of 96 feet per second. The height h of the object after t seconds is giv

An object is thrown upward from the top of a 112 foot building with an initial velocity of 96 feet per second. The height h of the object after t seconds is given by the quadratic equation... more

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Polynomials

03/11/18

Find a polynomial

Find a polynomial P(x) with real coefficients having a degree 4, leading coefficient 2, and zeros 3-i and 3i

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Math Science Physics

03/11/18

Using the information provided, calculate the period of the wave:

A transverse wave with an amplitude of 0.20 meter and wavelength of 3.0 meters travels toward the right in a medium with a speed of 4.0 meters per second. Using the information provided, calculate... more

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Math Physics Regents

03/11/18

Find the period and speed of the wave:

A periodic wave traveling in a uniform medium has a wavelength of 0.080 meter, an amplitude of 0.040 meter and a frequency of 5.0 Hertz. (a) Determine the period of the wave (b) Calculate the speed... more

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Science Physics Period

03/11/18

Calculate the period of the wave:

A transverse wave with an amplitude of 0.20 meter and wavelength of 3.0 meters travels toward the right in a medium with a speed of 4.0 meters per second. Using the information provided,... more

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Science Physics Period

03/11/18

What is the period and speed of the wave?

A periodic wave traveling in a uniform medium has a wavelength of 0.080 meter, an amplitude of 0.040 meter and a frequency of 5.0 Hertz. (a) Determine the period of the wave (b) Calculate... more

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Algerbra I

03/11/18

What is true about the zeroes of the function y=x^2+2x+10?

Which of the following is true about the zeroes of the function y=x^2+2x+10

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Other

03/11/18

What is the color of pH in CH3COOH

I want it, please answer the question its urgent

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Differential Equations Verification

03/11/18

Differential Equation: Need Verification Please

Determine the specific solution of the following initial-value problem. y''+ 4y = 0, y(pi)=0 and y'(pi)=1My answer is: y=(0)cos(2x) + C2sin(2x) or simply y=C2sin(2x) Note: the "(0)" is my C1. I... more

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Algebra Geomtetry

03/10/18

Given the area of a rectangle and it's aspect ratio (width over height), how can I calculate the lengths of it's sides?

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Math

03/10/18

The height, h, in feet of a golf ball above the ground after being hit into the air is given by the equation, h = -16t 2 + 64t, where t is the number of second

continuation of question: where t is the number of seconds elapsed since the ball was hit. How many seconds does it take for the golf ball to hit the ground?

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War Germany Soviet

03/10/18

The Nazi Germany Topic

This is a q in an interview i need to pass, pleas help and thanks! You are a high Nazi official and you learn that Hitler was captured by the Soviets. A meeting is urgently required. What to do ?

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Khz

03/10/18

kHz wavelengths

the wavelength (w) of a wave varies inversely as its frequency (f). A wave with a frequency of 400 kHz (kilohertz) has a length og 245 m. What is the length of a wave with a frequency of 500 kHz?

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Science Grade 8

03/10/18