A cattle trough has a trapezoidal cross section with a height of 100 cm and horizontal sides of width 100 cm and 50 cm. Assume the length of the trough is 1000 cm. The density of water is...

A cattle trough has a trapezoidal cross section with a height of 100 cm and horizontal sides of width 100 cm and 50 cm. Assume the length of the trough is 1000 cm. The density of water is...

I am just trying to see how much one ounce will cost me.

Paige only needs to sell to 17 more customers to receive a bonus. She works part time, so she only talks to 50 customers per day. With a sales ratio of 1:9, on which day will Paige qualify for a bonus...

one pan pizza and two beef burritos provide 1980 calories. two pan pizzas and one beef burrito provide 2670 calories. find the calories content of each item

block of mass 10 kg is resting on a fixed wedge in a cart moving with 10m/s towards right. Take initial velocity of wedge with respect to cart zero. Find work done by normal force on block in 2 second...

A 1.00-kg block is pushed along a rough horizontal floor with a horizontal force of 5.00 N for a distance of 5.00 m. If the block is moving at a constant velocity of 4.00 m/s, find... The...

An object of mass m, initially at rest under the action of a constant force F attains a velocity v in time t. Then the average power is supplied to mass is ?

why are there different formulas used for work-energy in dynamics?

if a refrigerator works between the temperature 4c &30c and 600 calories of heat is released then how to calculate work in joules ?

A 20.0 kg box slides up a 12.0 m long incline at an angle of 30.0 degrees with the horizontal. A force of 150 N is applied to the box to pull it up the incline. The applied force makes an angle of...

I am a weight lifter and want to calculate how much "work" I do when performing the deadlift. I did the math and want to ensure my concepts and calculations are correct, as it has been a...

Two positive charges are brought closer together. Describe the work done and the energy conversion that occurs.

Mei picks forty bushels of apples in 6 hours, her friend helps and it only takes 3.75 hours. Find how long it would take Cody to do it alone.

There a mass of 4kg and a mass of 5kg connected by an inextensible string passing over a smooth pulley .the mass for 4kg starts from rest and moves up the smooth plane inclined at 30degree to horizontal...

How much potential energy does 8 million kg of water have as it drops 50 m over Niagara Falls? If a 8 million kg of water flows over Niagara Falls each second, calculate the power available...

Calculate the work done you need to do to raise a 9 kg box a vertical distance of 3 meters. Show all work. When the same box is raised the same vertical distance by pushing it up a 5m long...

A weightlifter lifts a 50 kg barbell 2.5 meters into the air. How much work does she do on a barbell? How much potential energy does the barbell have at the top? If she lifts the barbell...

How much power is expended to raise a 300 kg roller coaster car to the top of a 35 m hill in 10 seconds? How much potential energy does the roller coaster car have at the top of the hill? Show...

a peole moving conveyor belt moves a 600 newton person a distance of 100 meters through the airport. How much work was done? shoul I assume there is any friction from this Question , As is...

how many feet of cable are needed to connect the deck to the main cables between the two towers? show all your work? assume that we need to build a bridge that spans 2400 feet. The two towers,...

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