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Questions (14)
A small 5.00 kg brick is released from rest 3.00 m above a horizontal seesaw on a fulcrum at its center, with a radius of 1.60
2 answers
613 views
What is the amount of heat entering your skin when it receives the heat released by 26.4 g of steam initially at 100 degrees
2 answers
593 views
Water flows steadily from an open tank into a pipe. The elevation of the top of the tank is 10.2 m, and the elevation at the
3 answers
1,777 views
Animals in cold climates often depend on two layers of insulation: a layer of body fat [of thermal conductivity 0.200 W/mK]
7 answers
5,280 views
A resting person requires 14.5 L of oxygen per hour to maintain metabolic activities. Such a person breathes in 0.480 L of air
2 answers
619 views
An 8.56 kg block of ice at 0 degrees celsius is sliding on a rough horizontal icehouse floor (also at 0 degrees celsius) at 15.6
2 answers
998 views
A copper calorimeter can with mass 0.202 kg contains 0.185 kg of water and 1.40×10^−2 kg of ice in thermal equilibrium at
1 answer
859 views
A copper calorimeter can with mass 0.202 kg contains 0.185 kg of water and 1.40×10^−2 kg of ice in thermal equilibrium at
4 answers
607 views
The basal metabolic rate is the rate at which energy is produced in the body when a person is at rest. A 70.0 kg person of
2 answers
563 views
The basal metabolic rate is the rate at which energy is produced in the body when a person is at rest. A 70.0 kg person of
5 answers
2,322 views
One end of a copper rod is immersed in boiling water at 100 degrees celsius and the other end in an ice-water mixture at 0
1 answer
840 views
Two very large parallel sheets are 5.00 cm apart. Sheet A carries a uniform surface charge density of -9.00 microcoulombs per
3 answers
1,570 views
Write the equation of the line containing the given point and parallel to the given line.
The equation of the line is y= Express
1 answer
458 views
Write the equation of the line containing the given point and parallel to the given line.
The equation of the line is y= Express
1 answer
450 views
Answers (6)
oh, never mind, I got it, I was using the wrong value for the constant, thanks!
I did that but the website that I do the homework on says my answer is wrong. Here are the numbers I plugged in: (1.9 )(5.67*10^8)((31+273)^4 - (19+273)^4) and I get the answer is 1.37*10^18 but it says that's wrong
If you have angular velocity and you need angular displacement, just remember: velocity=displacement/time so solve that for displacement and it's displacement=velocity*time so it should be angular displacement=(197 rad/s)(2.5 s) and your answer should be
To find the resultant, separate each of the vectors into x and y components so it should be: v1: 15x + 0y v2: 0x + 25 y add those together and the resultant vector is: resultant vector: 15x + 25y to get the magnitude, you do the square root of the x-comp
I'm putting in the answer I get but the website that I do the homework on says the answer is wrong. I'm getting 94.77 K for final temperature, but it says that's wrong. What should I do?
I wasn't given the thermal conductivity of the fur layer, all the info the problem gives is included above...
