Calculate Steady-State Temperature

A 0.2 m thick plane wall has its temperature on one side maintained at 50oC and has a thermal conductivity of 15 W/m*k. The other side is exposed to air at 30oC with a convection coefficient of 7... more

arithmetic and composition (please help ive tried everything!)

The cost to manufacture a product is proportional to the quantity produced, with a cost of $5000 dollars per day when 100 items are produced. The cost to store n items is proportional to the... more

Calculus Word Problem *Need Step by Step Explanation please!*

An object has a constant acceleration of 10 ft/sec2, an initial velocity of -20 ft/sec, and an initial position of 8 ft. Find the position function, s(t), describing the motion of the object.

09/08/20

Velocity physics help

A boy throws a ball up in the air with a velocity of 7 m/s when they are standing at the edge of a cliff 20 m high. If the ball falls and lands at the base of the cliff, what is the velocity of the... more

09/08/20

Start with Ebefore = Eafter to derive the maximum velocity in a spring SHM system

Start with Ebefore = Eafter to derive the maximum velocity in a spring SHM system

09/08/20

How much should each cup of lemonade be sold for in order to maximize the profit? (e)

Economics At the New York State Fair, it costs $500 to rent a 5-foot booth for a lemonade stand, and it costs an average of $1 in material and labor to make each cup of lemonade. When the booth... more

Pre-calculus Problem

A ship is sailing due north, parallel to the coast. The captain wants to determine how far the ship is from the coastline. To do this, he makes two sightings of a lighthouse next to the shore. At... more

08/31/20

I don’t understand this still

Please walk me through all the stepsThe quadratic function g(x) = (x+3)^2 - 2is given below. The function h(x) is a transformation of g(x). Write an equation for h(x) in terms of g(x).(x, g(x))... more

04/22/20

Momentum problem

Imagine two pucks sitting on level ice. Both pucks are pushed by identical forces across the ice over 3m. While both pucks start at rest, puck A is twice as massive as puck B. Which puck has a... more

04/21/20

Find the area of the sector for the given radius and arc length s.

find the area of the sector for the given radius and arc length a. r=a , s=a

04/21/20

Math word problems giving me a major headache any help?

 Trevor's school is selling tickets to a play. On the first day of ticket sales the school sold 1 senior citizen ticket and 12 child tickets for a total of $182. The school took in $252 on the... more

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