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zak
Questions (20)
what are the magnitude and direction of the force on a charge of
+ 2x 10^ -7 C that is 0.30m from a charge of -5 x 10^-7 C?
1 answer
394 views
if 1 and 2/3 cups of flour make 20 pancakes how many will 1 cup of flour make?
1 answer
431 views
in passing theough a wooden block 8cm thick the velocity of a beullet reduces from 700m/s to 300 m/s if the mass of the bullet
3 answers
737 views
What amount of current, in amperes, would be required to deposit 19.7 g of Au metal in 1.00 hour from a solution of Au(NO3)3?
1 answer
769 views
i have some question but i can not post it ,what should i do .help
1 answer
340 views
how many moles of Na are there in 1.50 moles of NaCl ?
1 answer
414 views
sulfuric acid is a strong acid and dissociates in water as shown in reaction
H2SO4(aq)=2H^+(aq)+SO4^2-(aq) what is the hydrogen
1 answer
962 views
A bouncy rubber ball is dropped from a height of about a metre above the ground .it falls to the ground, bounces and then rises
1 answer
527 views
Astronomers believe that
the biggest stars in the Galaxy may be a hundred times more massive than the Sun, but are a million
1 answer
489 views
What is the entropy change to the surroundings when 1 mol of ice melts in someone’s hand if the hand temperature is 32°C?
1 answer
997 views
What feature makes up part of the U.S border with Canada?
What feature makes up much of the U.S border with Mexico?
8 answers
1,759 views
what conditions drew people to the tigris-euphrates vally
1 answer
354 views
Hi, I have few problems that I really need help solving. I think I start out right but get messed up along the way and get the
2 answers
546 views
Question: "Plutonium isotope Pu-239 has a half-life of 24,100 years. Suppose that 10 grams of Pu-239 was released in the
2 answers
4,181 views
hi, I'm having trouble differenciating between direct object pronouns and indirect object pronouns.
To say: "bears scare me" is
1 answer
679 views
I have an assignment where I am suppose to find any recent situation that shows how the Eurpean union (or european nations) are
0 answers
446 views
what are three important US domestic politics(domestic events/issues) from the 1990s?
I have been searching for the answer, but I
1 answer
623 views
what is the range of tolerance of physical and chemical conditions for giant pandas?
0 answers
358 views
what does popular consent mean???
1 answer
471 views
Out of all the different civilizations, which one is the least known ?
Since you're asking about the "least known" civilization,
0 answers
538 views
Answers (7)
fish
B C C D A A D B C B you're welcome
KE 1= 1/2*0.002kg*300^2m/s=30 j KE2=0 work Tree=90 j f=ma first find a V2^2-V1^2 = 2AX - 300^2M/s = 2*a*0.05 A=900,000m/sec^2 f = 0.002*9e5 = 1800 newtons so this would be correct @mathmate ?
What is the entropy change to the surroundings when 1 mol of ice melts in someone’s hand if the hand temperature is 32°C? Assume a final temperature for the water of 0°C. The heat of fusion of ice is 6.01 kJ/mol. a. –188 J/K d. +19.7 J/K b. –22.0
If 1 mol of ice melts at its melting point of 273 K, the entropy change for the ice is 22.0 J/K. If the ice melts in someone’s hand at 34°C, what is the change in the entropy of the universe? Assume a final temperature for the water of 0°C. The
it is a method of which you use to do scientific projects and stuff. its the order in which you write the information.im not exactly sure of the order though
Ohhh, I get it!! Thanks so much, you helped me a lot! :)
