#### Line integral along the curve

Find the work done by a force ->F(x,y,z) = <xz, y, xy> along the curve C: ->r(t) = <4cos(t), 4sin(t), 3t> from point A(0 , 4 , 3(pi)/2) to B(-4, 0 , 3(pi) ).

#### Work out the value of a if when (Algebra 2)

f(x) = ax^3 - 3x^2 + 3x - 3 is divided by (2x-1) the remainder is -2.

11/27/20

#### sos confused ...Ellipse word problem .What's the planet's orbit (distance in millions of miles) about the star?

A planet moves in an elliptical orbit with a star at one of the foci. The perihelion​ (the smallest distance from the planet to the​ star) is 128.03 millions of miles and the aphelion​ (the largest... more

11/25/20

#### Caluculus Question

A pool in the shape of a hemisphere with a radius of 7 feet is filled with 6 feet of water.  Letting y  be the distance from the bottom of the hemisphere, set up the integral that would be used to... more

11/23/20

#### Find the vertical and horizontal asymptotes, domain, range, and roots of f(x)=−(1/x−3)+2

How would you explain this math question?

11/09/20

#### Finding Velocity, Acceleration and if the particle is increasing or decreasing

The position of an object moving along a line at any time 𝑡 ≥ 0 is given by the function 𝑠(𝑡) = 𝑡3 − 9𝑡2 + 18 , where s is measured in feet and t is measured in seconds. Find velocity of particle... more

11/06/20

#### Find the arc length on the interval for t between 0 and 2 inclusive for the curve

Find the arc length on the interval for t between 0 and 2 inclusive for the curve described with the parametric equations: x = 3t2, y = 2t3 + 1. (4 points)answer choices

11/04/20

#### What percentage of total flight time is spent at the top 10% of their jumping height?

Basketball players, volleyball players, and other jumping athletes often seem to hang in the air for a long time. This is because they spend a comparatively high percentage of their total flight... more

11/03/20

Given: F(x) = x + 2 and G(x) = 3x + 5﻿(F+G) (x) =A. 3x+7B. 4x+7C.3x^2+7

11/03/20

#### Solve the system by Elimination

−3x2+y=−18x+29−3x2−y=18x−25

11/02/20

#### calculus functions integration by parts

Which of the following functions of x can be integrated with respect to x without integration by parts, and purely using integration by u-substitution and the knowledge of the antiderivative of the... more

10/29/20

10/24/20

#### How do I solve this Physics question? Help Please!

Spiderman, whose mass is 78.0 kg, is dangling on the free end of a 11.8-m-long rope, the other end of which is fixed to a tree limb above. By repeatedly bending at the waist, he is able to get the... more

10/22/20

#### Write an equation of the parabola that passes through the point (3,−30) and has x-intercepts −2 and 18. Then find the average rate of change from x=−2 to x=8.

An equation is  y=__?The average rate of change is __?

10/15/20

09/25/20

#### What is the molar mass (in g/mol) of the unknown compound?

Suppose that you add 26.0 g of an unknown molecular compound to 0.250 kg of benzene, which has a KfKf of 5.12 oC/m. With the added solute, you find that there is a freezing point depression of... more

09/17/20

#### Can anybody help me with this question?

1. An electric circuit contains a resistance R and a capacitor C in series, and abattery supplying a time-varying electromotive force V(t). The charge q onthe capacitor therefore obeys the... more

09/16/20

#### How do I find average velocity without being given distance or time?

The problem for my homework is: "A car travels up a hill at a constant speed of 44 km/h and returns down the hill at a constant speed of 67 km/h. Calculate the average speed for the round trip".

09/05/20

#### Two particles with charges +6e and -6e are initially very far apart (effectively an infinite distance apart). They are then fixed at positions that are 6.52 x 10-12 m apart.

Two particles with charges +6e and -6e are initially very far apart (effectively an infinite distance apart). They are then fixed at positions that are 6.52 x 10-12 m apart. What is EPEfinal -... more

09/05/20

#### a certain force increase the length of wire by 1mm. which force is required to increase the length by 2mm??

its physics question plz Ans quickly its urgent...options....A 2f B 16f C 4f

09/03/20

#### Integrating something that already has a dx in it

What would integrating both sides of x*(dT/dx)=C in terms of x look like?I keep getting that T(x)=C, but i don't think that's right. boundary conditions: 𝑇(𝑥1 ) = 𝑇1 and 𝑇(𝑥2 ) = 𝑇2 Thank you

08/31/20

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