10/22/19

SHM of a fly wing
A fly beats its wings at a frequency of 1200 Hz. If the expansion and contraction of the wing muscles of the fly exhibits simple harmonic motion, the angular displacement of each wing of the fly... more
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10/20/19

Frequency of a suspension spring
Four identical springs used as part of a car's suspension system, one on each wheel. The springs compress by 6 cm when the weight of the 1900 kg car is applied to them.a) What is the spring... more
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10/20/19

Max speed of the oscillation
When a sound wave with a certain intensity is detected by the tympanic membrane (eardrum) the amplitude of the resultant motion is 1.0 nm (1.0 x 10-9 m). If the frequency of the sound is 600 Hz... more
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10/05/19

a block rests on an adjustable inclined plane with a max angle before it slips at 21 deg. What is the static coefficient?
Problem:A 50 N block rests on an adjustable inclined plane; the maximum angle just before it slips is 21 o with the horizontal. What is the coefficient of static friction between the block and the... more
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09/26/19

Derivatives Equation

Use the constant, power term, and sum of terms derivative rules to differentiate the following.f(x) = (5x^3 + 3x^2 + 1) / (5x^2)
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09/26/19

Find the slope of the tangent line to the curve defined by 9x^3+4xy−6y^2=1752 at the point (6,−4).
This is a derivative but I don't know how to do this question! I would appreciate if all work is shown with detailed steps! Provide the answer to the slope of the curve at the point (6,-4) is_____.
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09/26/19

Find acceleration
A 60 kg block slides along the top of a 100 kg block. The lighter block has an acceleration of 3.4 m/s2 when a horizontal force F= 400 N is applied. Assuming there is no friction between the bottom... more
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09/19/19

Find the 93rd term of the arithmetic sequence -5, -15, -25
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09/17/19

x = square root of 400 − 5p. a.) when is the demand unitary?
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09/13/19

Chemistry help needed!
Convert 84.8 𝜇m3 to liters. Note that 1 mL=1 cm3 .
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09/11/19

A piece of gold has a volume of 150cc. If the density of gold is 19.3g/cc, what is the mass of the gold?
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09/11/19

Let someone kindly provide me with detail solutions

1-If , find the average rate of change on the interval [−1, 2].2-If f (t) = t2 + t, find [ f(t + h) – f (t)] / h.3-If f(x) = 2x + 1, what is the domain?4-Find the range of f (x) = – 1 / √ (2 –... more
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09/10/19

PQ=3x+14 and QR=7x-10; find x
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09/10/19

A piece of glass dropped near the top of the hotel falling 215 meters. Ignoring air resistance, how long would it take the piece of glass to hit the wall
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09/09/19

Physics Homework
Suppose D = A - B where vector A has components Ax =5, AY = 2 and vector B has components Bx = -3, By = -5a) What are the x- and y-components of vector D?b) Draw a coordinate system and on it show... more
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09/09/19

i have a physics question.
A basketball player who is 2.00 m tall is standing on the floor 7 m from the basket. If he shoots the ball at a 430 angle with the horizontal, what initial speed must he throw the ball so that it... more
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09/09/19

Twice the difference of a number and 2 is more than 5 less than three times the number.
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09/08/19

How do you find this second derivative?
f(x)= (7e^x)/(7e^x+6)f''(x) = ? I'm able to derive the 1st derivative using the quotient rule, coming out to (42e^x)/((7e^x+6)^2)but am unable to get the 2nd derivative using the quotient rule... more
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09/08/19

The density of copper is 8.92 g/cm cubed A.what is the mass of 25.0 cm cubed of copper B.what is the volume of 454 g of copper

its 2 questions from my chemistry I spent so long trying to figure out and do the work and is still confused please help and can you provide the work bc idk how to set it up
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09/08/19

Hitting a golf ball on the moon vs earth
A golf ball is hit on the moon which has a free-fall acceleration 1/6 of its value on earth. The ball is hit at a speed of 28m/s at an angle of 35 degrees. How far did the golf ball travel?... more
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08/22/19

8 times the cube of a number m is at least 64
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08/22/19

Electron ejection
Two electrons are ejected in opposite directions from radioactive atoms in a sample of radioactive material at rest in the laboratory. Each electron has a speed of 0.67c as measured by a laboratory... more
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07/17/19

minimum and maximum value
Find the maximum and minimum value of the function 6x5-10x2+14x4
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06/26/19

How do you solve the value of b on a linear equation?
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06/19/19

How do I calculate 3D angles of a vector in 3D space from the given 2D planar angles of the vector?
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