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# Rachel

Questions9

Discuss what you understand by Angular Momentum. Use the example of a skater  to illustrate the Conservation of Angular Momentum and its implications.

Physics2 months ago
• ### A gas condensed into a liquid phase at approximately 14.6 K. What temperature, in degrees Fahrenheit does this correspond to?

This is a physics question and I am not sure how to do it.

• ### Physics Concept Question!?

Discuss giving examples on what you understand by Rate of Change of Momentum. How did Newton use this concept to define force? Pretty please include an illustration as well thank you!

• ### Discuss briefly giving illustrations how centripetal force keep the planets moving in their orbital path around the sun.?

Physics2 months ago

• ### Physics Particle in Motion Help?

I need some help with this multiple choice question please.

A particle in motion has a velocity given by v=2i+3j and an acceleration a=-1.2i+1.6j. What is the position after 10 seconds?

a. -40i+110j

b. -36i+115j

c. -0.48i+4.6j

d. -12i+48j

I am not sure what I am solving for, please include a formula that I could use. Thank you kindly.

• ### PHYSICS QUESTION!! Velocity and Acceleration?

Discuss the motion of a particle that has POSITIVE velocity and NEGATIVE acceleration.

I need help with an example preferably something I can draw out!

Thank you

• ### Physics Help!!?

The distance (x) traveled by an object moving with a constant acceleration a for a time t is given by the relation:

(a) Write the equation in the form y = mx + b and identify m and b. What is the independent variable and what is the dependent variable?

(b) How will you draw a graph using this relation to obtain a straight line?

(c) What quantity does the slope of this graph represent?

any help would be appreciated as I am lost! Thank you!!

• ### Chem 2 Help?

Joyce measured the thickness of a sheet of paper and obtained the value

1.2 × 10-3 m. Mark measured the thickness of the same sheet of paper and obtained the value 0.98 × 10-4 m. Calculate the percent difference between these two measurements.

thank you!!

Homework Help3 months ago
• ### Trig/Math Questions!?

HELP!!!

I don't know what I am doing for these two problems.

1. You want to buy a triangular lot measuring 1360 feet by 1890 feet by 2470 feet. The price of the land is \$2200 per acre. How much does the land cost? (Hint: 1 acre = 43,560 square feet. Round your answer to two decimal places.)

2. Find the area of the triangle having the indicated angle and sides. (Round your answer to one decimal place.)

B = 139°, a = 84, c = 39

• ### I need help on some Pre-Calc Questions?

1. Continuously compounded interest

Initial Investment: \$1250

Annual % rate: 8 1/2%

Tiem to double: Unknown

Amount after 10 years: Unknown

2. Complete the table for the radioactive isotope

C14

Half Life: 5715

Initial Quantity: 9.5g

Amount after 1000 years: Unknown

3. The number of bacteria in a culture is increasing according to the law of exponential growth. After 2 hours, there are 200 bacteria, and after 5 hours, there are 1600 bacteria. How many bacteria will there be after 7 hours?

Any help would be appreciated! I know the equations, but when I plug in the numbers my answers are still incorrect.

Thank you!!

• ### Is there anyway I could shrink?

I'm a girl who is already 5'9 and i'm only 15, I feel so akward in my school because all the other girls are so dainty and cute! Is there anyway I could shrink :P I'd feel alot better about myself if I could!

3 AnswersOther - Beauty & Style9 years ago
• ### Is pro-scoutt a good place for actressess and models?

i got accepted foor pro-scott but its really expensive ....HELP

THANKS(: