03/24/21

Question included in description

Minimizing Construction Costs The management of the UNICO department store has decided to enclose a 911 ft2area outside the building for displaying potted plants and flowers. One side will be... more
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03/24/21

What is the Distance Rate?
A baseball diamond is a square with sides of length 90 ft. A batter hits the ball and runs toward first base with a speed of 24 ft/s.At what rate is his distance from second base changing when he... more
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02/27/21

Physics homework help
A spherical object (with non-uniform density) of mass 16 kg and radius 0.14 m rolls along a horizontal surface at a constant linear speed without slipping. The moment of inertia of the object about... more
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02/26/21

Five-Part Physics Question - Help and Answers Appreciated
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02/26/21

Three-Part Physics Question - help and answers appreciated
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02/25/21

Find the unit vector in the direction of steepest ascent and descent at P? What is the vector that points in a direction of no change?
Consider the function f(x,y)=5x2-5y2-7 and the point (-2, -1).a) Find the unit vectors that give the direction of the steepest ascent at P?b) Find the unit vectors that give the direction of the... more
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02/25/21

Find the area enclosed by the polar curve r=4e^(0.8θ) on the interval 0≤θ≤17 and the straight line segment between its ends.
I found the area from the region to the polar curve, it's 5(e^(8/35)-1), however this is not the full answer. I need to subtract the area of the triangle formed by the x axis the segment between... more
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02/25/21

Max Tension and Height
The (massless) string of a pendulum has a length of 0.80 m with a 0.20-kg ball attached to one end. If the maximum speed of the ball at the lowest point of its swing equals 1.5 m/s, what are the... more
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02/25/21

A roller coaster reaches the top of the steepest hill with a speed of 7.4 km/h.

A roller coaster reaches the top of the steepest hill with a speed of 7.4 km/h. It then descends the hill, which is at an average angle of 43° and is 45.0 m long. What will its speed be when it... more
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02/24/21

A merry-go-round has 1 = 319 kg•m>, and is initially rotating at 2.33 rad/s. A 25.8 kg kid hops on, 1.40 m from the axis. What is the new angular velocity?
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02/24/21

At a starting point, Mark walks south at a rate of 1ft per second, while Sam walks east at a rate of 1.5 feet per second. How fast are they walking away from each other after 1 minute?
At a starting point, Mark walks south at a rate of 1ft per second, while Sam walks east at a rate of 1.5 feet per second. How fast are they walking away from each other after 1 minute?
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02/24/21

A large rectangular picture frame is to have an area of 120 sq. inches, with 2-inch margins at the top and sides and 1-inch margin at the bottom. What dimensions of the frame...
A large rectangular picture frame is to have an area of 120 sq. inches,with 2-inch margins at the top and sides and 1-inch margin at thebottom. What dimensions of the frame will give the largest... more
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02/24/21

Find the exact values of the other 5 trig functions if cos θ = -1/3, pi/2 < θ < pi
Find the exact values of the other 5 trig functions if cos θ = -1/3, pi/2 < θ < pi
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02/23/21

Physics Homework question. please show steps
A 19.8-kg box rests on a frictionless ramp with a 16.3° slope. The mover pulls on a rope attached to the box to pull it up the incline. If the rope makes an angle of 42.8° with the horizontal, what... more
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02/22/21

Find the values of a and b that make f continuous everywhere.
f(x)=x^2-4/x-2 if x<2f(x)=ax^2-bx+3 if 2<x<3f(x)=2x-a+b if x>3
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02/21/21

By choosing appropriate secant lines, estimate the slope of the tangent line at P. (Round your answer to two decimal places.)
The point P(1,0) lies on the curve y=sin((14pi𝜋)/(x)).(a) If Q is the point (x,sin((14𝜋)/(x)), find the slope of the secant line PQ (correct to four decimal places) for the following values of... more
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02/20/21

MATH HELP PLZ!!!
A rug cleaning company sells three models. EZ model weighs 10​ pounds, packed in a​ 10-cubic-foot box. Mini model weighs 20​ pounds, packed in an​ 8-cubic-foot box. Hefty model weighs 60​ pounds,... more
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02/19/21

At what rate is the distance between the cars increasing two hours later?
Two cars start moving from the same point. One travels south at 48 mi/h and the other travels west at 20 mi/h. At what rate is the distance between the cars increasing two hours later? mi/h
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02/19/21

I dont get it help me please

Find the magnitude and direction of the resultant vector that describes the overall motion of a plane that travels 340 km at 12° East of North, then turns to travel 40 km at 34° South of East
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02/18/21

What is the potential energy of this configuration?
Consider two charges q1= 0.2 u C and q2 = 3 u C that are 0.5m away from each other. What is the potential energy of this configuration?
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02/18/21

How much time did it take for Batman to catch up to the criminal?

In a daring car chase, the Batmobile and a Ford Focus start from rest at the same instant, with the Batmobile a distance behind the focus. The criminal has a constant acceleration of 3.10 m/s2 ,... more
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02/18/21

Construct the graph of a function f that satisfies the following conditions

Construct the graph of a function f that satisfies the following conditions f´(-2)=0, f´(0)=0, f´(2)=0, f´(x)>0, si 2<|x|, f´(x)<0 si 0<|x|<2
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02/17/21

physics homework
You are watching your friend play hockey. In the course of the game, he strikes the puck in such a way that, when it is at its highest point, it just clears the surrounding 2.80 m high Plexiglas... more
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02/17/21

Physics Homework Help
A car is designed to get its energy from a rotating flywheel with a radius of 1.82 m and a mass of 687.7 kg. Before a trip, the disk-shaped flywheel is attached to an electric motor, which brings... more
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02/17/21

An amusement park ride is a giant barrel with I = 15400 kg•m2. How much work does it take to speed the barrel from rest to 3.14 rad/s?
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