Homework Statement
A basketball player does 2.43 X 105 J of work during her time in the game, and evaporates 0.110 kg of water. Assuming latent heat of 2.26 X 106 J/kg for the perspiration (the same as for water), (a) determine the change in the player’s internal energy, and (b) the number...
Homework Statement
A submarine called the Deep View 66 is currently being developed to take 66 tourists at a time on sightseeing trips to tropical coral reefs. According to guidelines of the American Society of Mechanical Engineers (ASME), to be safe for human occupancy the Deep View 66...
Here is the question again. I don't understand it?
A 67 {\rm kg} person sits on a 3.6 {\rm kg} chair. Each leg of the chair makes contact with the floor in a circle that is 1.4 {\rm cm} in diameter.
Here is what they want me to find - Find the pressure exerted on the floor by each leg of...
Homework Statement
A 67 kg person sits on a 3.6 kg chair. Each leg of the chair makes contact with the floor in a circle that is 1.4 cm in diameter.
Homework Equations
p= M/V
P= F/A
Pg = P - Pat
Pat = 1.01 x 105 N/m2
The Attempt at a Solution
I figured out the area of the circle using the...
Let me ask u another question
Theoretically, how many moles of NH3 will be produced
I believe it's 2 Moles of NH3 because that's how many there are in the balanced equation. Is it right if so
How should i get the actual yield of NH3 if the percent yield is 80%, how many moles of NH3...
6.0 moles of N2 thats are mixed with 12.0 moles of H2 according to the following equation:
The equation is already balanced:
N2(g)+ 3H2(g) yields 2NH3 (g)
The questions asks for what is the chemical in excess? is it H2 or N2
I solved the problem but i want to make sure if it is right...
idk if i did this correctly so far so here goes.
The question states
A large rubber ball (8.80 kg) is fired straight down from the roof of a building from a spring loaded mechanism that stored 987 J of elastic potential energy. The building roof is 14.0 meters above ground. The rubber...
idk if i did this correctly so far so here goes.
The question states
A large rubber ball (8.80 kg) is fired straight down from the roof of a building from a spring loaded mechanism that stored 987 J of elastic potential energy. The building roof is 14.0 meters above ground. The rubber...
he said u got till tuesday. First i found the kinetic energy which came out to be 638.97 and then i found the change in temp by using the kinetic enerygy which is heat. because that is the reason why they gave the velocity. and i got 28 degrees.
well this thing is due tuesday. i know that. and i got 28 by doing exactly what u did and then i added the 28 with 21 to get my final temperature the 28 is the change in temp.
Question is Why does a desk lamp often has small holes near the top of the metal lampshade. How do these holes keep the lamp cool.
This is what i think. Heat travels upward by air convection. Since air is a poor conductor, very little heat travels sideways.
That is my reason what do u...
This was the question
On a pleasant fall day (temperature of 21.0 degree Celcius) a lump of clay (with mass of
.855 kg) is thrown against the wall with a speed of 38.0 m/s. The clay deforms as it sticks to the wall, noiselessly. Assuming no heat escapes into the air, what will be the final...
k the question states
On a pleasant fall day (temperature of 21.0 degree Celcius) a lump of clay (with mass of
.855 kg) is thrown against the wall with a speed of 38.0 m/s. The clay deforms as it sticks to the wall, noiselessly. Assuming no heat escapes into the air, what will be the...
The question states.
Peter is heating water on the stove to boil eggs for a picnic. How much heat is required to raise the temperature of his 10.0 kg vat of water from 20.0 degrees celcius too 100 degree celcius.
I worked out my problem in this format
Delta Q= mass times specific heat...