Answer:10,000 kg
Explanation:I went on my calculator and did 1,000 × 250 ÷ 25 or -25 to get 10,000 or -10,000 ;)
At terminal velocity, which two forces are balanced? *
gravity and air resistance
gravity and magnetism
O magnetism and air resistance
O friction and air resistance
Answer:
friction and air resistance
at terminal velocity, the weight of the object due to gravity is balanced by the frictional forces, and the resultant force is zero.
Please Help! My question is attached below.
Answer:
C?
Explanation:
what would be the effect of bringing a negatively charged metal ball near an iron bar
When the negatively charged metal ball comes in contact with the iron bar, the positive charges of the bar aligns near to the negative charges and they electrostatically attracts results in a static electricity.
What is static electricity?When a negatively charged body is comes in contact with an conductor or an insulator, the random charges gets polarized, where the positive charges of the second object align with the negative charges and there occurs a flow of electron from the negatively charged object. This is called static electricity.
A metal in its neutral state contains a sea of positive ions and free electrons. Here, the when the negatively charged metal ball comes near the iron bar, the iron bar gets polarized.
The positive charges of the iron bar gets polarized near the negative charge of the ball and there occurs an electrostatic force of attraction. Electrons from the negative charged ball tends to flow to the conductive iron bar and leads to a static electricity.
To find more on static electricity, refer here:
https://brainly.com/question/12791045
#SPJ6
Which of the following would not be studied within the topic of stoichiometry?
Answer:
The amount of energy required to break the ionic bonds in CaF2.
What happens to the molecules within a gas when the gas condenses?
A.
They gain energy.
B.
They lose energy.
C.
They drift apart.
D.
They move faster.
Answer:
B
Explanation:
They lose energy and slow down and move closer to other gas molecules and the molecules collect together to form a liquid
Answer:
B. They lose energy.
Explanation:
took the test, can confirm it's b ヾ(•ω•`)o
The reason Senators are in office for 6 years is....( No links pls or I’m reporting you :)
1) To separate Senators from the whims of the
general public.
2) to save money in elections
3) Because Senators are required to be older
than representatives
8. (07.05 LC)
Which statement is correct about the rate of most chemical reactions? (5 points)
1.It increases when the concentration of reactants decreases.
2.It does not depend on the concentration of reactants.
3.It increases when the temperature increases.
4.It does not depend on the temperature.
Answer: 3.It increases when the temperature increases.
Explanation:
The speed of most chemical reactions increase as if the temperature of those same reactions increase as well. This is because a higher temperature allows for reactants to gain the necessary activation energy needed to react.
Enzymes are another reason. Enzymes are catalysts in reactions which reduce the activation energy needed for a reaction to occur and enzymes work best in certain higher temperatures - not too high - so this also leads to the reaction speed increasing due to temperature increases.
Answer:
It increases when the temperature increases.
Explanation:
I took the test and the other guy is right ;)
a 20.0 mL solution of HCl with a pH if 1.500 is diluted by the addition of 80.0 additional mL of water, so that the total solution volume is 100.0 mL. What is the new pH of the solution after the dilution?
a.) 7.000
b.) 2.199
c.) 3.320
d.) 12.599
answer is a
Explanation:
To try and stimulate the correct distance, how close would you put the animal
representing the electron?
its out of
Select one
Here's link to the answer:
bit.[tex]^{}[/tex]ly/3a8Nt8n
Answer: out in the parking lot
Explanation:
how conditions on Earth would be different if its axis of rotation were vertical instead of tilted.
Answer:
there would be different times because the sun and moon are in different places and one side would be sunny for a long time
Explanation:
I NEED HELP ASAP alligator
turtle
raccoon +
According to the food web above,
which of the following would be an
example of a predator-prey
relationship?
bass
egret mountain lion
snail
sunfish
deer
algae
shrub
A snail and sunfish
Balligator and raccoon
Cinsect and deer
D mountain lion and alligator
insect
Can someone help me answer these chemistry problems?
1. How many moles of helium are required to fill a 5.10 L balloon to a pressure of 1.1 atm at 22 degrees C? Show your work to receive full credit.
2. If there are 4.00 moles of a gas at a pressure of 5.60 atm and a volume of 12.0 liters, what is the temperature? Show your work to receive full credit.
3. If I contain 3 moles of gas in a container with a volume of 60 liters and at a temperature of 400 K, what is the pressure inside the container? Show your work to receive full credit.
4. You are given a 3.00 mol sample of krypton with a volume of 7.00 L. The temperature is held at 300. K. What is the pressure of the krypton sample? Show your work to receive full credit.
5. The air at the top of Mount Everest has pressures of 201.0 torr N2, 50.0 torr O2, 2.0 torr Ar, and 0.5 torr CO2. What is the total air pressure at the top of the highest peak in the world? Show all work to receive full credit.
6. A mixture of 1.20 mols He, 2.40 mols Ne, 4.80 mols Kr, and 0.60 mols Ar has a total pressure of 600.0 mm Hg. What is the partial pressure of the Kr? Show all work to receive full credit.
Answer:
Q.1
To calculate moles of helium (n)=?
given
p=1.1 Atm
V=5.10 L
T =22°C
R =8.314 (universal gas constant)
Now use,
PV = nRT
1.1×5.10 =n×8.314×22
n= 5.61÷182.9
n= 0.030 moles
Use the same method to solve further questions!