Louie

This page lists questions and answers that were posted by visitors named Louie.

Questions

The following questions were asked by visitors named Louie.

Evaluate the expression (40/2+i) + (35/2-i). What steps do I take in order to find this answer?

It was kind of windy the other day bring the temperature from -10 degrees centigrade to 18 degrees centigrade in 24 hours. How much did the temp. rise in 24 hours? on average, how much per hour did the temp. rise?

I'm trying to figure out what went wrong during my freshman chem lab. We were figuring out the enthalpy of formation of MgO(s). MgO(s) + 2H+(aq) -> Mg2+(aq) + H2O(l) dHrxn = -334.83kJ/mol Mg(s) + 2H+(aq) -> Mg2+(aq) + H2(g) dHxrn = -1105kJ/mol H2(g)+ 1/2O...

The 4th term of an arithmetic sequence is 18 and the 6th term is 28. Give the first 3 terms. Use the formula

A flagpole 20ft tall cast a shadow 12ft long on the level ground. Find the angle which the rays of the sun make with horizontal

How do you get loads in 5seconds?

Answers

The following answers were posted by visitors named Louie.

I remember this from last year - you should have a table of the heat of enthalpy somewhere in your book. From this you'll need to get the values of delta H (heat) of each mixture. The left side (HCl + NaOH) is the reaction and the right side is the result...

tangent of theta is opposite / adjacent. So your theta (angle) here is 50, your opposite is 27, and we don't know the adjacent. So do simple algebra & bring x to the other side by multiplying so you have tan50 * x = 27, now divide tan50 * x by tan50 to ge...

What direction is the bee traveling? Anyways, i don't know...But the trains will collide in exactly 1 hour since the one is going 30 and the other 20. Their distance is 50 km apart. Is it asking if the bee is going 80km/hr, how long will it take to travel...

^Yeah theta has to be in degrees, or radians. Sq rt of 15 can't be right

Use your kinematic equations. You know Vix, Ax, Then you'll need to find Vfx

We used 1g of MgO and .5g of Mg for the experiment. 250ml of 1M HCL was also used.

Never mind, I figured it out!

Math - To find 62 - 24, you could first find 64 - 24 = 40. Then what should you ...

#3. amortized is if both the principal and interest rate are paid by a sequence of equal periodic payments Amortization Formula: R=monthly payments (?) P= principal amount ($2419.) i= 5.2% interest rate (0.052/36) n = number of payments (36 months) R = P(...

It's answer #2: potential energy. Kinetic energy is the energy that the ball acquires when it's moving.

thanks that helped alot ;)

thx i know im late