A 100 g ball collides elastically with a 300 g ball that is at
rest. If the 100 g ball was traveling in the positive x-direction
at 5 m/s before the collision, what are the velocities of the two
balls after the collision?
What would happen if we added a large amount of honey into water before it is chilled; would we be able to supercool it and turn it ice instantaneously after tapping the bottle really hard like pure water does.
In: Chemistry
For the following redox reaction: 2HBrO4(aq) + 14 HBr (aq) → 8Br2 (g) + 8H2O
Which element is oxidized
Which element is reduced
Indicate the before and after oxidation state of each element involved in electron transfer.
In: Chemistry
3. (A)
A 25.0 mL sample of 0.103 M Ba(OH)2 was titrated with 0.188 M HClO4. Calculate the pH of the solution before the addition of any titrant and after the addition of 15.6, 27.4, and 38.1 mL of titrant.
In: Chemistry
Consider a full Moon rising precisely at sunset on a certain day. Approximately when will the Moon rise on the next day?
choices
About an hour before sunset
About an hour after sunset
About the same time as sunset
In: Physics
In: Physics
Calculate the pH of a solution of 0.25 M Acetic acid and 0.34M Sodium acetate before and after 0.036 M NaOH is added to the solution. Ka of HAc = 1.8 x 10 -5
Please Use the ICE method
In: Chemistry
if an 5 year annual bond with 6% coupon rate, currently priced at $988 and par value $1000. what is the cost of debt before tax? if the tax rate is 30%, how much is the after tax cost of debt
In: Finance
Assume a corporation has earnings before depreciation and taxes of $90,000, depreciation of $35,000, and that it has a 40% combined tax bracket. What are the after-tax cash flows for the company?
Multiple Choice
$68,000
$62,800
$72,600
$71,800
In: Finance
Choose a pivot using the median of 3 technique and show the result after 1 pass of quicksort (stop just before choosing a 2nd pivot) for the list [ 85, 40,60, 30, 55, 63, 70, 75 ,25]
In: Computer Science
You have been hired as an expert witness in a case involving an automobile accident. The accident involved car A of mass 1500 kg, which crashed into stationary car B of mass 1100 kg. The driver of car A applied his brakes 15 m before he skidded into car B. After the collision, car A slid 18 m while car B slid 30 m before coming to rest. The coefficient of kinetic friction between the locked wheels and the road is 0.50. Show that the driver of car A was exceeding the 55 mi/h (90 km/h) speed limit before applying the brakes.
In: Physics