05/21/21

When the terminals of a 100-volt battery are connected to 2 large parallel horizontal plates 2cm apart, the electric field in the region...
When the terminals of a 100-volt battery are connected to 2 large parallel horizontal plates 2cm apart, the electric field in the region between the plates is very nearly uniform with magnitude E=... more
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05/21/21

physics question
A tangential force of 360 N acts for a time of 5.0 seconds at the edge of a potter’s wheel (solid cylinder or disc) with radius 50.cm and mass 45kg. What is the change in its angular velocity?[ans:... more
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05/16/21

Consider the curve y²e^x = 3y + x². What is the equation of the tangent line to the curve when x = 0
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05/16/21

Find the area bounded by the region. What is the area of the region enclosed by y = x² - 4 and y = 2x - 1
*insert illustration of Cartesian Plane here*
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05/11/21

A 0.5-m high toddler is playing 10 m in front of a convex mirror with radius of curvature of 7 m. What is the location of his image? What is the height of his image?
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05/08/21

Divergence and convergence
Determine whether or not the following series converge or nota) ∑n=0∞ (-1)^n/(3n+3)b) ∑n=1∞ 2^n/(n+3)!c) ∑n=1∞ (16/n^3)^(1/4)
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05/07/21

Find the general and particular solution of (1 + 4xy — 4x^2 y)dx + (x^2 — x^3 )dy = 0; when x = 2, y = 1/4
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04/25/21

Find absolute max and min
Find the absolute maximum and absolute minimum values of f(x)=x^3-3x^2-45x+1 on [-5,3],along with where they occur.1)the absolute min value is ____ , occurring when x=___2)the absolute max value is... more
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04/23/21

how do I solve this? 2 (x+3) > 6(x-1)
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04/16/21

Sand is falling from a conveyor belt at a rate of 12ft^3/min into a conical pile. Diameter of the pile is 4x the height. At what rate is the height of the pile changing when the pile is 10 feet high?
Sand is falling from a conveyor belt at a rate of 12ft^3/min into a conical pile. The diameter of the pile is four times the height. The volume of the cone is V=1/3pir^2h. At what rate is the... more
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04/16/21

Find the area enclosed by one petal of the curve

Find the area enclosed by one petal of the curve r = 3sin2θ.
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04/09/21

what fare should we charge?
GO transit offers a round trip ticket from Hamilton to Toronto for $20. Currently it averages a ridership of 10000 people per day, and has a maximum capacity of 15000. Mark research shows that for... more
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04/05/21

What was the tension T in the string? 
An object of mass m=0.38 kg attached to a string is moving uniformly in a vertical circular path of radius 1.20 m. Recorded time t=0.34 s while it moves 1.28 radians. What was the tension T in the... more
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04/04/21

Physics problem
An insulating hollow sphere has inner radius a and outer radius b. Within the insulating material the volume charge density is given by ρ (r) = α/r, where α is a positive constant. (a) In terms of... more
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04/03/21

calculus helppp
Consider the planes given by the equations2𝑥+2𝑦−4𝑧=2,2x+2y−4z=2,3𝑥+2𝑦+𝑧=6.3x+2y+z=6.(a) Find a vector 𝑣⃗v→ parallel to the line of intersection of the planes. 𝑣⃗?Find the equation of a plane... more
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04/03/21

Energy Conservation Principle
Depending on voltmeter/ammeter terminal connection to the components, you might find differentsigned voltage and currents values for the same component. This causes different signed powervalues for... more
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04/01/21

How do i find Ro when Ro is adjusted for maxmimum power transfer?
How and what is Ro in this circuit when it is adjusted for maximum power? and what is its corresponding power?The circuit: https://imgur.com/a/NvWeAZM
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04/01/21

Percieved loudness/intensity question
From a distance of 4.0 m, a bystander listens to a jackhammer breaking concrete. How far would he need to move from the jackhammer so that its perceived loudness decreases by a factor of 8? TIA!
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04/01/21

Spring Force (hooke's law)
A spring scale hangs from the ceiling of an elevator. Attached to the scale is a 25N weight. A)Draw an FBD of the weight and establish Fnet=ma in the vertical direction, solving for Fs. B) What is... more
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03/22/21

I need some help, I can't solve this physics problem.
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03/22/21

Relationship between work and energy
A 50-g ball is dropped from a height of 2.0m. (a.) What is the work done on it by its weight? (b.) What is its final kinetic energy? (c.) What is its final speed? *PLEASE HELP!!!
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03/22/21

Gravitational potential energy and elastic potential energy.
A coiled spring in a waist trimming exercises requires a force of 54N to compress it by 0.20m. (a.) Find the force constant of the spring. (b.) How much force is needed to compress the spring by... more
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03/22/21

Please help me solve for the arc length
How do I find the arc length if i am only given the angle? 140 degrees
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03/22/21

please help me with my physics homework
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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03/21/21

An aero plane is 528 ft. directly above an automobile and starts at the rate of 20 miles per hour at the same instant the automobile starts east at the rate of 40 miles an hour.
How fast are they separating? 
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