08/29/19

Last problem on math homework has me stumped for two days, I would appreciate any help on this.
A block-and-tackle pulley hoist is suspended in a warehouse by ropes of lengths 2 m and 3 m. The hoist weighs 390 N. The ropes, fastened at different heights, make angles of 50° and 38° with the... more
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08/28/19

Circuits II Laplace and differential equation question
Find thedifferential equationrelating()Find thefind a differential equation relating c(t) and r(t) if:C(s)/R(s) = (s + 1)/(s(s+2)(s+3))ctand()rtif
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08/28/19

The length of a rectangle is 2 cm less than seven times the width the perimeter is 60 cm find the width And the length
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08/28/19

The equation for the slope 3/5, passes through (-6,-8)
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08/28/19

What is the height and base of a triangle if the height is four times it’s base and the area is 338
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08/26/19

A football field is 25 yards longer than three times the width.Its perimeter is 130 yards.Find it’s dimensions
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08/25/19

A hopper jumps straight up to a height of 1.3 m. With what velocity did it leave the floor?
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08/25/19

Lagrange multiplier
Find the point on the plane 3x+2y+z=13 closest to the point (1,1,1). (Use Lagrange Multiplier)
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08/23/19

Solving Quadratics Word Problem
The length of a rectangle is 10 inches greater than the width. If the area is 375 square inches, (A) write an equation to determine the width. (B) Solve for the length and width of the... more
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08/21/19

Caliber sequence question.

Whats next in the sequence:3, -6, 12, 4, 20, ?
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08/20/19

Algebra 2 Word Problem
The sum of 3 consecutive even integers is 10 more than twice the smallest of the three integers. Find the largest of these integers.
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08/19/19

If B is between A and C and AB =1/4(16x+24),BC=7x+15 and AC=120.Find AB and BC
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08/18/19

help?????????????????
In the regular pentagon FGHIJ, extending the sides of the pentagon, as shown, forms a star. What is the measure of angle A in the figure?
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08/16/19

An inductor rated at 10 mH and a 100 Ω resistor are in an AC circuit that has a frequency of 100 Hz. What's the inductive reactance at this frequency?

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08/16/19

A series RL circuit has a total resistance of 2,000 Ω and an inductive reactance of 680 Ω. What phase angle would separate the circuit's current and voltage?

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08/16/19

A parallel RL circuit has an AC source of 80 volts at a frequency of 600 Hz. The current through the resistor is 3.4 mA and the current through the inductor is 2.6 mA. What's the circuit current?

A parallel RL circuit has an AC source of 80 volts at a frequency of 600 Hz. The current through the resistor is 3.4 mA and the current through the inductor is 2.6 mA. What's the circuit current? 
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08/15/19

algebra math word problem pls hrlp
2. A radiator holds 4 gallons of fluid. If it is full with a 20% antifreeze solution, how much fluid should be drained and replaced with a 70% antifreeze mixture to result in a 50% mixture of... more
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08/11/19

Physics Question
Assuming that the earth re-emits all the radiations it receives from the sum, determine its temperature, (For earth, E = 1.39 × 103 w/m2 , Stefan’s constant. = σ = 5.735 × 10-8 w/m2 k4 )
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08/09/19

system of equation word problem
at the homecoming football game, the senior class officers sold slices of pizza for $.75 each and hamburgers for $1.35 each They sold 40 more slices of pizza than hamburgers and sales totaled... more
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08/08/19

Simple Harmonic Motion:Physics
A spiral spring was displaced 5cm vertically down when a load of 25N was attached to it. Find the maximum displacement produced when a mass of 0.6kg was dropped into the attached scale pan from a... more
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08/08/19

Question from my assignment
Two plane glass plates are placed on top of one another and on side a paper is introduced to form a thin wedge of air. assuming that a beam of wavelength 600 nm is incident normally, and that there... more
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08/01/19

Please help I am confused

eyjafjallajökull is a volcano in ice land. during a recent eruption, the volcano, spewed out copious amounts of ash. one small was ejected from the volcano with an initial velocity of 336 ft/sec.... more
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08/01/19

need help on my hw problem
A green fringe produced by double slit interference lies 2 cm from the center of a screen placed 1 m from the double slit. If the screen is moved back so that it is now a distance of 4 m from the... more
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08/01/19

need help on physics problem
Light with a wavelength of 593 nm (5.93 x 10-7 m) is incident upon a double slit with a separation of 0.6 mm (6 x 10-4 m). A screen is located 7.5 m from the double slit.(a) At what distance from... more
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07/18/19

Related Rate (Calculus)
A circle is inside a square.The radius of the circle is increasing at a rate of 5 meters per minute and the sides of the square are decreasing at a rate of 4 meters per minute.When the radius is 5... more
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