04/20/22

Find the sum: −8 + −4 + 0 + ... + (−12+4n)
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04/20/22

To find parsec, why do we need to divide AU by (1/3600)× (pi/180)
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04/20/22

How to use rationalizing substitution on a given equation
How do you use rationalizing substitution to put the equation 2∫√(x/(2(Cx+GM))) into the form k∫√(a2 - u2)?
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04/20/22

This is math please help me
Find the derivative of y=√16
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04/19/22

A block of mass 2 kg hangs from a spring with constant 18 N/m. It is lifted up to a height y=20 cm and dropped from rest. a. What is the period of motion?
A block of mass 2 kg hangs from a spring with constant 18 N/m. It is lifted up to a height y = 20 cm and dropped from rest.a. What is the period of motion?b. After 1.2 seconds where will the block... more
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04/19/22

Rotation of Rigid bodies
A bicycle wheel with radius 0.3 m rotates from rest to 3 rev/s in 5 s. What is the magnitude and direction of the total acceleration vector at the edge of the wheel at 1.0 s?magnitude: direction:... more
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04/19/22

Ap physics 1 ratio
Two identical clay spheres of mass m0 traveling with identical velocity v0 collide with and stick to two different vertical rods. The shorter rod has length 2R and mass 2m0, while the longer rod... more
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04/19/22

AP physics 1 gravitation
What would be the weight of a 65.0 kg astronaut on a planet with the same density as Earth and having twice Earth's radius? (g = 9.81)
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04/18/22

The program below is nevertheless incorrect. Explain why.  Suppose we change the if in line 6 to a while. Does this solve any problem in the program? Do any difficulties remain?
Consider a sharable resource with the following characteristics: 1) as long as there are fewer than three processes using the resource, new processes, new processes can start using it right away.... more
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04/16/22

Calculus Problem
A high-speed bullet train accelerates and decelerates at the rate of 10 ft/s^2 . Its maximum cruising speed is 120 mi/h . (Round your answers to three decimal places.) (a) What is the maximum... more
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04/10/22

Equations of Damped Harmonic Motion
The path of a fast-moving particle traces a circle with equation (x + 7)^2 + (y - 5)^2 = 36 It starts at point (-1,5), moves clockwise, and passes the point ( -7,11) for the first time after... more
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04/05/22

Calculus College

1.Express the function 𝐻(𝑥)=^7√x/(3+x) as f ∘ g .f(x)=?g(x)=? 2.Suppose 𝑓(𝑥)=sin(𝑥),𝑔(𝑥)=𝑥/(𝑥−4),ℎ(𝑥)=(𝑥+7)^3.Find 𝑓∘𝑔∘ℎ.(𝑓∘𝑔∘ℎ)(𝑥)= ?
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03/26/22

The following parametric equations trace out a loop. x=6−3/2(t^2) y=−3/6(t^3)+3t+1 Find the t values at which the curve intersects itself: t=± ___ .What is the total area inside the loop? Area = ___
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03/26/22

A .650-kg mass is attached to a spring of spring constant 13.0N/m along a horizontal frictionless surface. The object oscillates in simple harmonic motion and has an amplitude of 13.0 cm.
a. What is the maximum speed of the mass?b. What is the total energy of the system?c. What is the speed of the object at a displacement of 6.5cm?
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03/24/22

Limits, Definition
Always true or false? The value of the limit of f(x) as x approaches e does not exist when e is not part of the domain of f. If f(x) = c, c is all real numbers, then the limit of f(x) as x... more
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03/22/22

Show that (0, 0) is the only critical point of f(x,y)=(xy)/(x^2+y^2+1)
I know that to find the critical point, you take the partial derivatives with respect to x and y and find the values of x and y when the partial derivatives are equal to zero. I set the partial... more
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03/20/22

How do I do this?

Vinyl records (LPs) almost disappeared after CDs were introduced in the early 1980s, but they have been making a comeback. Wagner's Records estimates that t months after the grand opening of the... more
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03/19/22

The distance s (in feet) covered by a car t seconds after starting is given by the following function. s = −t^3 + 7t^2 + 18t (0 ≤ t ≤ 6)

NowFind a general expression for the car's acceleration (in ft/sec3) at any time t (0 ≤ t ≤ 6). to find thes''(t)=At what time t (in sec) does the car begin to decelerate? (Round your answer to one... more
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03/17/22

Finding the equation of the plane tangent
‎Let S be the su‎rface descr‎ibed by the vec‎tor functi‎onR->(u,v)=<v2, u+v, e2u>F‎ind an equ‎ation of the pla‎ne tan‎gent to S at the po‎int (4, −2, 1)
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03/16/22

Refer to BC CALC Volumes of Revolutions:

Refer to BC CALC Volumes of Revolutions: Given f(x)=x^2-3 g(x)=4x+9, at what values of x does f(x)=g(x)? Also, find the area enclosed by f(x) and g(x). Make sure to show all work.
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03/16/22

Physics Question: Harold the Hurler
Harold the Hurler is a physics student who is renowned for his baseball pitching arm. In order to determine the amount of work he performs in throwing a baseball, Harold devises an experiment. He... more
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03/15/22

The capacitors have values C1 = 2.5 µF and C2 = 4.0 µF, C3 = 6.0 µF C4 = 8.0 µF and the potential difference across the battery is 12.0 V.
The capacitors have values C1 = 2.5 µF and C2 = 4.0 µF, C3 = 6.0 µF C4 = 8.0 µF and the potential difference across the battery is 12.0 V. Assume that the capacitors are connected in series. Find... more
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03/13/22

Stress and Strain PHYSICS

A metal slab is on top of a concrete column which has a height of 6.5 meters and a diameter of 1.50 meters. If the metal slab has a total mass of 60,500 kg, determine (a) stress, (b) strain, and... more
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03/06/22

statistics and probability

After Bank A announced the creation of a new cryptocurrency, EBOCOIN, several analysts began to develop models that aim to explain the evolution of the price of this cryptocurrency over time.... more
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02/28/22

AP Physics C E and M
An electron moves 0.10 m along the direction of an electric field of a magnitude of 3.0 N/C. What is the change in electric potential energy between the electron’s initial and final points?
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