Nafis K.

Find the area enclosed by f(y)=y/4 g(y)=y1/2 My teacher wrote the integral from 0 to 4 why wouldn't it be 16 set them equal to each other and 4=4

If the area under a curve is given by x³/3 - x²/2 - 2x, find the exact area between this curve, the x-axis and its x-intercepts.

Connie needs to buy wallpaper for a rectangular room with height H, width W, and length L. To estimate the amount of wallpaper she needs for the four walls, Connie decided to ignore the door and... more

The question is: Suppose we measure the terminal voltage of a rechargeable NiCad battery and find it to be 1.28 V when measured by a voltmeter. We now connect a 8.0-ohm resistor across the... more

The mass of a particular eagle is twice that of a hunted pigeon. Suppose the pigeon is flying north at vi,2=18.1 m/s when the eagle swoops down, grabs the pigeon and flies off. At the instant right... more

On a snow day, Nakeisha created two snowmen in her backyard. Snowman A was built to a height of 39 inches and Snowman B was built to a height of 60 inches. The next day, the temperature increased... more

Determine the derivative of f(x)=cos(x+1/x).

A cast Iron block is used to hold up a beaker of mercury. The face of the block that supports the mercury is 2.5cm2. The blocks length changes by 0.01% (1/10000 the original length). The beaker has... more

A standard annealed copper wire has a resistance of 3 ohms per metre length at 20°C. What must be the electric intensity in the wire if the current is 20 A? What electric intensity is required to... more

Outside temperature is −5₀C. The temperature of an iron plate is 25₀C and it is kept outside. How long will it take the temperature to fall below 0₀C. Round your answer to two decimal places in... more

A window whose area is 1 m2 opens on a street where the street noise results in an intensity level at the window of 60 dB. How much acoustic power enters the window via the sound waves?

A tidal power plant has been proposed for construction in the Kimberly region of Western Australia, where extreme tidal ranges are observed. The proposed plant would produce 100 GWh of electricity... more