luckyme

A man jumps vertically off a tree branch with an initial velocity of 2.2 m/s. He needs to time his jump so that he lands on a car as it drives under the tree. The horizontal distance between the man and the car is 100 meters. The car accelerates from rest at 6 m/s^2. The vertical distance between the branch and the top of the car is 3 meters. What must be the horizontal distance between the car and the branch when the man jumps?

I’m not completely certain about my answer, and I need to be completely certain!

1. Players should attempt to

a. watch the opponent at all times

b. watch the ball at all times

c. watch the place where they are aiming to hit the ball

d. watch their opponents part of the time and the ball the other part

2. Until you determine how well your opponent serves, the best position for the receiver is

a. close to the service line

b. on the baseline near the sideline

c. close to the baseline but in the middle of the court

d. close to the sideline on the service line

3. In singles, it is good strategy to

a. return balls to your opponent's weakness

b. vary the pace on the return

c. return balls to the baseline

d. do all of the above

4. What is poaching?

a. when both doubles partners move to the net

b. when a defensive mistake is made that allows the opponents to score

c. when a point is won by skillful playing rather than by a player's mistake

d. when the net player moves over to his serving partner's side of the court to make a volley

5. Where should the receiver's partner stand on the serve?

a. close to the alley midway between the net and service line

b. near the baseline close to the alley

c. at the service line halfway between the alley and center service line

d. at the service line near the center line and service line

6.The receiving side returns a hard, well-placed serve with a weak drive to the net person. What stroke should the serving team probably attempt to make?

a. an overhead

b. a lob

c. a cross-court drive

d. an aggressive volley

7.If the server's partner has a tendency to stand near the center line on the serve, where should the receiver attempt to return the ball?

a. cross court into the server's alley near the service line

b. right between the server and the partner

c. right down the alley on the receiver's side

d. right at the partner's feet

8. Players A and B are partners. Both swing at the ball, but neither player touches the ball, which drops out beyond the baseline. What is the decision?

a. point for A and B

b. point for opponents

c. replay the point

d. let

9. In singles, after the completion of a forehand drive from the right-hand corner of the court, a player should move to which one of the following positions for the next return?

a. just inside the center of the baseline with the right side to the net

b. just inside the baseline on the left side of the court to protect the backhand

c. behind the center of the baseline with the left side to the net

d. behind the center of the baseline with the body facing the net

10. In doubles, a ball lands in the center of the court. Which partner should generally attempt to return it? (Note: Both players are right-handed.)

a. the player who is nearer the ball

b. the player on the right-hand side of the court

c. the player who gets there first

d. the player who is nearer the net

11. When should you go to the net in doubles play?

a. when your partner's return touches the net and drops over into the opponents's court

b. when you can get to the net and be set before your opponent hits the ball

c. when opponents are playing "one up, one back"

d. when you hit a weak return

12. According to the course material, where should the server stand when serving to the left service court in a game of doubles?

a. halfway between the singles sidelines and the center mark back of the baseline

b. halfway between the doubles sidelines and the center mark back of the baseline

c. between the baseline and service line

d. close to the center mark back of the baseline

13. In doubles, where should partners stand after the deep lob?

a. both up or both back

b. one in the left service court, one in the left backcourt

c. one covering the entire forecourt, one covering the entire backcourt

d. one in the right backcourt and one in the left service court, just in front of the service line

14. Your opponent is very good at cross-court shots in singles. Where would you try to send most of your returns to prevent this?

a. to the service line

b. to the middle of the court and deep

c. deep to your opponent's backhand

d. to the sideline on your opponent's forehand

15. Which of the following is not a good example of when to rush the net in singles?

a. when the opponent hits a short shot

b. when the return of a serve lands on the service line

c. after a deep cross court shot

d. when a shot lands just over the net

When hitting a low ball on the right side of the body, which of the following is the best procedure?

a. lengthen the backswing

b. bend the knees, open the racket face, and swing the racket upward under the ball

c. bend the knees, keep the racket head slightly above the wrist, and swing parallel to the ground

d. loop the forward swing and shorten the follow-through

What is the most common cause of hitting the ball up in the air?

a. swinging parallel

b. having the racket face open (tilted up)

c. hitting too hard

d. reaching for the ball instead of letting it come to you

Which one of the following is not an effective way to give power to the ball?

a. firm wrist action as the ball is contacted

b. bending the arm at the elbow and whipping the racket through the ball

c. transferring body weight from the back foot to the front foot as the swing is made

d. swing racket under the ball with racket face open.

My Sony laptop had been flickering for weeks. This was accompanied by a burning smell in the bottom corner of the screen. Then, it died completely. So, I had the screen replaced with a brand new one. Prior to the fix (when it was working properly), the screen was vibrant with great contrast. Now, the screen looks washed out by comparison. The blacks are not as black, the reds not as red, and so on. I checked the Nvidia settings (contrast, brightness, gamma, etc) as well as the VAIO control center settings (brightness, resolution) and they are exactly the same as they were before. I fiddled with the settings to see if I could recreate the deep blacks but to no avail. If the new screen is the same model as my old one (as the Sony repairman affirms), what could be the issue? Are there some settings that I missed that could have been changed?

Does "Grade 1" refer to the first grade you received for that class or the term grade? I mean, if I took a class in the third and fourth quarters, would I list my grade under "Grade 1" and "Grade 2" or "Grade 3" and "Grade 4"? I only ask this because there is an option "NO" - no course this term. I figured that if I received two permanent grades I would list them as Grade 1 and Grade 2, but NO confused me. I hope I didn't confuse you as well - this is important. Also, the coursework tally is telling me that I need 2 more years of English, 1 more foreign language, 1 more visual arts, and 1 more history/social science. What is going on?

Does "Grade 1" refer to the first grade you received for that class or the term grade? I mean, if I took a class in the third and fourth quarters, would I list my grade under "Grade 1" and "Grade 2" or "Grade 3" and "Grade 4"? I only ask this because there is an option "NO" - no course this term. I figured that if I received two permanent grades I would list them as Grade 1 and Grade 2, but NO confused me. I hope I didn't confuse you as well - this is important. Help!

A 4 lb force and a √2 lb force both act on a single object. The angle between the forces is 60 degrees. Find the measure of the angle that the resultant makes with the √2 force.

This seems straightforward but I haven't done vectors in a while. Do I need to use law of cosines and sines?

I am a junior in high school. My cumulative GPA is a solid 3.75. (Which GPA is important, anyway? There’s cumulative, weighted, state, scholastic, and indexed) I have never taken an Honors/AP class. And I do not participate in extracurricular activities – no sports, no clubs, nothing. The strange thing is that my counselor told me I’d have no problem getting into UCLA. Mysterious, isn’t it? Next year I will take the SAT – what score would compensate for these weaknesses? And what is my counselor thinking?

A car is moving with velocity v(t) = 15 + 4t + 1/8t^2

a) find velocity at t=12 | all I would do is replace t with 12, which equals 81, right?

b) now i need to find the acceleration at t=12 - my book says that acceleration is the derivative of velocity, which would be 1/4t + 4...but I was told that the formula for acceleration is a = v/t. So that would be a = 81/12, which equals 6.75. If I use the first derivative, I get 1/4(12) + 4 = 7. Can somebody straighten all this out for me?

80% of the apricots on a tree are ripe. If you randomly pick 20, what is the probability that exactly 13 of them are ripe? HELP

80% of the apricots on a tree are ripe. If you randomly pick 20, what is the probability that exactly 13 of them are ripe? HELP

A test has 3 true/false questions and 3 multiple choice q's (4 possible answers). If someone guesses on all six, what is the probability that they get exactly 4 correct?

I suppose they have three possible ways to successfully do this: 3 correct T/F, 1 correct multiple; 2 T/F, 2 multiple; or 1 T/F, 3 multiple. Right? Is this even necessary? I set it up like this, for the first scenario: 1/2 x 1/2 x 1/2 x 1/4 x 3/4 x 3/4 (the last two being wrong). This seems to be the general rule for this section of my book. Then you have to multiply by a permutation - should it be 6! / 4!2! or 6! / 3!2!1!? Maybe this is where I'm going wrong. And then you do the same thing for the other two scenarios and add? Or am I over complicating things? HELP

What is the future value of 1500 dollars invested at 6.5% and compounded quarterly for 8 years? I'm not even sure what the formula is.

I got an answer, probably wrong, can you verify?

(the log has a base of 2)

3x^log5 = 19

I came up with 2.214...

A plane travels east for 20 minutes at 150 mph. It then changes direction and flies 20 degrees north of east for 30 minutes at 200 mph. There is a constant 30 mph wind blowing from the north. I need to determine the magnitude and direction. I came up with 155.7 for the magnitude, which I'm sure is wrong, but who knows. I need some help here!

A force of 36 newtons pulls an object at an angle of 20 degrees north of due east. A second force pulls on the object with a force of 48 newtons at an angle of 42 degrees south of due west. Find the magnitude and direction of the resultant force. I thought I understood vectors until I got to this section.

cosine theta = 1/secant theta

The right side of the equation reduces to cosine, right? So would the answer be all values of theta?

If A is a second quadrant angle, and cos A = - (sqrt of 3)/4, find

(sec^2 A - tan^2 A) divided by (2 sin^2 A + 2 cos^2 A)

sin^2 + cos^2 =1, so I figure that takes care of the denominator, but I can't finish the problem. Help!

Is it normal to get three full-on nosebleeds during the duration of a cold?