A hockey puck (1) of mass 130 g is shot west at a speed of 8.40 m/s. It strikes a second puck (2), initially at rest, of mass 124 g. As a result of the collision, the first puck (1) is deflected at an angle of 32° north of west and the second puck (2) moves at an angle of 40° south of west. What is the magnitude of the velocity of puck (1) after the collision?
In: Physics
3. Two ice skaters collide on the ice. A 39.6-kg skater moving South at 6.21 m/s collides with a 52.1-kg skater
moving East at 4.33 m/s. The two skaters entangle and move together across the ice. Determine the magnitude
and direction of their post-collision velocity (answer: 3.64 m/s at 42.5 degrees)
Please provide a detailed diagram
In: Physics
In: Biology
Indicate which direction the reaction at equilibrium should shift under the given conditions for the exothermic reaction of H2(g) + CO2(g) ⇌ H2O(g) + CO(g).
Action --> effect
addition of CO2
addition of H2O
addition of H2
removal of H2
removal of CO2
removal of CO
PLEASE TRY TO EXPLAIN!!
In: Chemistry
In: Chemistry
In: Chemistry
10 U.S. citizens, who are unrelated, each invest in the common shares of a new Foreign Co. at 10% ownership each. Foreign Co will buy shares of both U.S. and non-U.S. public companies. These investments will produce dividend income. What, if any, are the U.S. tax consequences that they should be concerned about?
In: Accounting
Derive an expression of the mean free path of a gas molecule assuming a hard sphere collision. Calculate the ratio of the mean free path of CO molecules in a vessel at a pressure P1=10-4 Torr at 300 K to that at a pressure P2=10-9 Torr at the same temperature. (CO molecules d =0.73nm)
In: Physics
Use the following information to calculate the expected return and standard deviation of a portfolio that is 30 percent invested in 3 Doors, Inc., and 70 percent invested in Down Co.
| 3 Doors, Inc | Down Co | |
| Expected Return, E(R) | 18% | 14% |
| Standard deviation | 48 | 50 |
Correlation .33
In: Finance
In: Psychology