Recent content by Susanem7389

Write the molecular eqaution and the net ionic equation for each of the following aqueous reactions. If no reaction occurs, write NR after the arrow. A) Na2Co3 + MgBr2---> B)MgSO4 + NaOH----> I can't figure these two out. From the solubility rules, all the compounds are soluble so there...

d= v1(t)+1/2(a)(t) squared d= ((v1+v2)/2) * t is that correct?

Having trouble with the equation to solve the problem. A flowerpot falls from the ledge of an apartment building. A person in an apartment below, coincidentally in possession of a high-precision timing system, notices that it takes 0.20 seconds for the pot to fall past his 4.0 m high window...

I'm still not sure how to figure it out.

For part A, adding 180 degrees to what the calculator gave me, I got the correct answer, however it did not work for part b.

I'm having trouble finding the equation. Two cars are traveling along a straight road. Car A maintains a constant speed of 80 km/h and car B maintains a constant speed of 110 km/h. At t=0, car B is 45 km behind car A. (A) How much father will car A travel before car B overtakes it? (B) How...

Rewrite the following vectors in terms of their magnitude and angle (counterclockwise from the +x direction) a) A velocity vector with an x component of -75 m/s and a y component of 35 m/s - I found the magnitude by using A= square root of ( Ax squared plus Ay squared ), however I did...

It would be the same numbers for both however the positive x direction, both the x and y component would be positive and for the negative y direction, both the x and y component would be negative. Thank you for your help.

Yes, it is. I must have done something wrong with the equation. How would I fix it?

Okay. Thank you. Also, was the way I solved the problem correct?

Determine the x and y components. A 40 lb force vector that makes an angle of 120 degree counterclockwise from the -y direction. I did Ax= (40)(-cos120 degree) and Ay= (40)(sin120 degree) I got the right answer, I just want to make sure that this is the correct way of solving the problem.

Okay thank you.

Yes, I meant about the third and fourth quadrants. Thank you for all your help. Do you have any more information or know of any websites that could help me understand how to find sin and cos for angles between 90 and 360 degree?

Sure. Sorry about the confusion. I am just learning vectors and I'm trying to understand how to find the components. The equation in the book for finding components is Ax=Acosθ and Ay=Asinθ. However that is only the case if the vector is in the +x direction. How would you go about finding the...

I just transfer into a Physics Major. I was wondering if anyone has any advice about completing the B.A degree and masters and/or Ph.D. Also, what are the jobs available in each degree for Physics? Thank you.