brett
This page lists questions and answers that were posted by visitors named brett.
Questions
The following questions were asked by visitors named brett.
If you know that the mass concentration of a NaCl solution is 58.5 g/L, the molar concentration (mol/L) of the solution is ? can sum1 help me plz 1 mol of NaCl has a mass of what? 58.5 g NaCl x (1 mol NaCl/molar mass NaCl) = mols NaCl on 58.5 gg NaCl. Mol...
19 years ago
The temperature of a sample of water increases from 20.7°C to 45.7°C as it absorbs 5675 J of heat. What is the mass of the sample?
15 years ago
A 4.30 g nugget of pure gold absorbed 293 J of heat. The initial temperature was 23.0°C. What was the final temperature?
15 years ago
what is 3/10 divided by 13/14
15 years ago
i'm writing a paper on the Bolivarian Alternative for the Nations of Our America and I need to tie in a leaked U.S. document that referred to particular countries called the "Axis of Mischief." I can't find one, could you please help??
14 years ago
A satellite orbits at a distance from the Earth's center of about 4.40 Earth radii and takes 13.0 hours to go around once. What distance (in meters) does the satellite travel in one day?
13 years ago
A 610 kg satellite orbits at a distance from the Earth's center of about 5.3 Earth radii. What gravitational force does the Earth exert on the satellite?
13 years ago
A coach is hitting pop flies to the outfielders. If the baseball (mass = 145 g) stays in contact with the bat for 0.08 s and leaves the bat with a speed of 75 m/s, what is the average force acting on the ball?
13 years ago
A woman with a mass of 56 kg runs at a speed of 8 m/s and jumps onto a giant 30 kg skateboard initially at rest. What is the combined speed of the woman and the skateboard?
13 years ago
A .145kg baseball is thrown at 40 m/s (~89.5mph). What is the momentum of the baseball?
13 years ago
Phrank (36.4kg) runs at 2.2 m/s and jumps onto a large stationary skateboard (2.3kg) on which Phrancine (22.7kg) is sitting. After the collision, Phrank, Phrancine, and the skateboard move at 1.3 m/s. Find the momentum before and after the collision along...
13 years ago
The Earth orbits the Sun once per year.What is the centripetal force keeping the Earth in orbit? T = 1 year (convert to seconds) r = 1.5e+11 meters m = 6e+24 kg
13 years ago
What is the rotational speed of the minute hand on a clock? Convert from rad/s to rev/s
13 years ago
Cliff and Will are carrying a uniform 2.0m board of mass 69kg. Will is supporting the board at the end while cliff is 0.6m from the other end as shown in the following figure. Cliff has attached his lunch to his end of the board, and the tension in the st...
13 years ago
(x/5) - g= a for x
11 years ago
Gina and Jules were shopping together when they decided to buy lottery tickets. Each bought one ticket and agreed that if either won, they would split the winnings. Two days later, Gina discovered that she had won. She refused to share with Jules. 2 of 2...
10 years ago
can u guys help me add some adverbs (6 or 10) to this story that i summarized thanks in advance!! (^_^): Black, cloudy night-time hung over the backdrop of the house. The grey, ramshackle walls of the house looked worn and forbidding, and the dilapidated...
9 years ago
A 2.00 kg ball moving to the right at 10.0 m/s makes an off-center collision with a stationary 3.00 kg ball. After the collision, the 2.00 kg ball is deflected upward at an angle of 30o from its original direction of motion and the 3.0 kg ball is moving a...
9 years ago
A series RL circuit contains two resistors and two inductors. The resistors are 33 W and 47 W. The inductors have inductive reactances of 60 W and 30 W. Angle theta is _____.
6 years ago
Answers
The following answers were posted by visitors named brett.