A chemical reaction occurs in 200 grams of water with an initial temperature of 16.0°C. The reaction is allowed to
proceed in a coffee cup calorimeter. As a result of the
reaction, the temperature of the water rises to 31.0°C. How
much heat energy was absorbed by the water (specific heat
= 4.184 J/g. °C)?
a.
12,552 )
b. 13,450 ]
C. 18,875 )
d. 56,500 )

Two 1.20-m nonconducting wires meet at a right angle. one segment carries + 2.50 µc of charge distributed uniformly along its length, and the other carries - 2.50 µc distributed uniformly along it, as shown in fig. 21.50. ( a. find the magnitude and direction of the electric field these wires produce at point p, which is 60.0 cm from each wire. ( b. if an electron is released at p, what are the magnitude and direction of the net force that these wires exert on it?

What is the largest meteoroid that has collided with this planet

It's time for santa to deliver his presents. assuming he delivers presents all over the world, he has to travel about 75,000,000 miles. if he travels east to west, he can use the time zones to make christmas day last 31 hours. what speed, in miles per hour, must santa fly to get all of his presents delivered?