1. If Steve throws the football 50 meters in 3 seconds, what is the average speed (velocity) of the football?

2. If it takes Ashley 3 seconds to run from the batters box to first base at an average speed (velocity) of 6.5 meters per second, what is the distance she covers in that time?

3. Bart ran 5000 meters from the cops and an average speed (velocity) of 6 meters/second before he got caught. How long did he run?

4. If Justin races his Chevy S-10 down Highway 37 for 2560 meters in 60 seconds, what is his average speed (velocity)?

5. Mike rides his motorcycle at an average speed (velocity) of 20 meters/second for 500 seconds, how far did he ride?

6. Sarah backstrokes at an average speed of 8 meters per second, how long will it take her to complete the race of 200 meters length?

7. Lauren’s SUV was detected exceeding the posted speed limit of 60 kilometers per hour, how many kilometers per hour would she have been traveling over the limit if she had covered the a distance of 10 kilometers in 5 minutes?

8. Tina’s calculations of the tarantula found that the spider was able to cover 20 centimeters in 5 seconds, what was the average speed of the spider?

9. Thirty years ago, police would check a highway for speeders by sending a helicopter up in the air and observing the time it would take for a car to travel between two wide lines placed 1/10th of a mile apart. On one occasion, a car was observed to take 7.2 seconds to travel this distance. a. How much time did it take the car to travel the distance in hours?

b. What is the speed of the car in miles per hour?

10. The fastest trains are magnetically levitated above the rails to avoid friction (and are therefore called MagLev trains…cool, huh?). The fastest trains travel about 155 miles in a half an hour. What is their average speed in miles/hour?

11. In 1960, U.S. Air Force Captain Joseph Kittinger broke...

...
Testing the Harmonics and the Speed of Sound
WANG ZEJUN (Nina)
Partners: Mavis, Haley
SPH3U – S2
Mrs. Bechtold
April 7th, 2014
Question:
Will the average speed of sound using resonant lengths and thespeed of sound using the temperature be the same?
Hypothesis:
Yes, the two different ways of calculating the speed of sound (calculating the speed of sound by using the resonant lengths and the temperature) will have the same result.
Materials:
A retort stand with a clamp
A 512Hz tuning and a 1024Hz tuning fork
A rubber hammer ( to hit the tuning forks)
A resonance tube
A beaker
A rubber tube ( to connect the resonance tube and the beaker)
Water in room temperature
A temperature gauge
Procedure:
1) A thermometer was placed near where the experiment was going to be performed.
2) The beaker, which was connected to the resonance tube through a rubber tube, was hold up at approximately the same height as the top of the resonance tube.
3) Water in room temperature was slowly poured into the beaker until the water surface in the resonance tube was 10cm below the top of the resonance tube.
4) A 512Hz tuning fork was hit...

...
6th hour
4/1/13
Tennis ball and racket ball comparison
Problem: Find the speed of the tennis ball and the racket ball to determine which one travels faster.
Hypothesis: I believe that the racket ball will have a faster average speed than the tennis ball for both distances because the racket ball is bouncy.
Materials:
*Tennis ball *30yards of space
*Racket ball *Set of stairs
*Stop watch *measuring tape
Procedures:
1) Measure out 30 yards of space, have of member stand at one end of the field with a stop watch in hand.
2) Another member throw the tennis ball 30 yards while timing how long it take to get there.
3) Repeat 2 more times and collect the average speed (total distance/ total time).
4) Repeat this process using the racket ball. Record in table 1.
5) For experiment 2, measure one of the steps and multiply by how many steps you have.
6) Have a member at the bottom of the steps with a timer and the one with the tennis ball at the top. Time how long it will take the tennis ball to reach the bottom of the step with the timer.
7) Repeat #6 twice more, and find your average speed (total distance/ total time).Record your data in Table 2.
8) Repeat steps #6 and #7 replace the tennis ball with the racket ball.
9) Compare your data in your conclusion.
Data:
Table 1:
Trial
Ball
Distance
Time
Speed
Average Speed
#1
Racket...

...cash drawer at the local market has room for $20 bills, $10 bills, $5 bills, $1 bills,
quarters ($0.25), dimes ($0.10), nickels ($0.05), and pennies ($0.01). Create a worksheet
that allows a person to enter in how many of each type of bills and coins are in the cash
drawer and calculates the total value of the money in the drawer. So for example, if the
drawer contains two $5 bills and three quarters, there would be $10.75 in the drawer.
Question 2
At Louis’s Discount Furniture Store, Louis, the owner, marks furniture at twice his
wholesale cost plus $80. If you bargain with him, he’ll drop the price as much as 15%.
Create a worksheet that allows you to enter the wholesale cost and calculates the list
price and the best discount price. Try your worksheet with a sofa that wholesales for
$550 and then for a table that wholesales for $200.
Question 3
Internet Shopping, Inc. has ambitious plans. This week they have 100,000 visitors to
their website. Of their visitors, 2% place orders. These orders average $24.00 each. Thus
they are taking orders for $48,000 this week (week 0).
For the next two years they plan to increase the visitors by 3% per week. They expect
the percent who place orders to stay the same. They expect the average amount order
to increase by $0.15 per week.
Create a worksheet to predict their growth over the next two years. You should have a
separate input area with the two...

...-------------------------------------------------
SpeedSpeed is defined as a measure of the distance an object travels in a given length of time.
The average speed of an object can be determined from the equation below:
Thus, if a car travels 100 meters in 5 seconds its average speed can be calculated as;
Average speed = 100/5 = 20 meters per second
Average speed is used to give thespeed of an object over a given interval of time, if however the speed of an object is required for a particular moment then the instantaneous speed is used.
Instantaneous speed is the speed of an object at a given moment. In this case the equation is similar to that of average speed but the time taken is a much smaller interval. A speedometer in the car gives an instantaneous speed as it gives the speed of the moving car at that specific time, whereas the average speed would be used as a measure of speed for the whole journey.
-------------------------------------------------
Velocity
Velocity is defined as a measure of the distance an object travels in a stated direction in a given length of time.
Thus velocity is speed in a stated direction. Velocity is referred to as a vector quantity because it possesses both size and direction, the size...

...Inventory Summary
Project Description:
In this Mastery project, you will edit a worksheet that summarizes the inventory status at the Petaluma production facility.
Instructions:
For the purpose of grading the project you are required to perform the following tasks:
Step | Instructions | Points Possible |
1 | Start Excel. Open the downloaded Excel workbook named GO_e02_Grader_EOC.xlsx. | 0 |
2 | Rename the Sheet1 worksheet tab to Condiments and then display the Toppings worksheet. | 4 |
3 | On the Toppings worksheet, in cell B4, insert a function that will total the Quantity in Stock data (A15:A29). | 5 |
4 | On the Toppings worksheet, in cell B5, insert a function that will calculate the average retail price of the available toppings (D15:D29). | 5 |
5 | On the Toppings worksheet, in cell B6, insert a function that will calculate the median retail price of the available toppings (D15:D29). | 5 |
6 | On the Toppings worksheet, in cell B7, insert a function that will calculate the lowest retail price of the available toppings (D15:D29). | 5 |
7 | On the Toppings worksheet, in cell B8, insert a function that will calculate the highest retail price of the available toppings (D15:D29). | 5 |
8 | On the Toppings worksheet, in cell B10, insert a function that will count the total number of salsa products available. | 5 |
9 | On...

...hour than Bob. If Bob walked t, Yolanda walked t + 1. The results are summarized in the table below.
We get two equations:
i) x = 4t ii) 45 - x = 3t + 3
We can substitute the value of x in i into ii
45 - 4t = 3t + 3 7t = 42
t = 6
Since we are looking for x, we substitute t back into i)
x = 4t = 4 x 6 = 24
Answer: Bob walked 24 miles when they met.
4. A cyclist rides on a long stretch of road with a constant speed. After 2 hours there is a change in wind direction that reduces his speed by 4 mph. The entire distance he travels was 48 miles and the time for the entire distance was 5 hours. What was the average speed of the cyclist in the first two hours?
Using dB as the distance travelled before the change of wind took place and dA as the distance travelled after the change of wind, we get:
48 mi
dB
dA
Start
End
From the picture we get
Using v as the speed of the cyclist before the change of wind, we get :
.
After substituting these into the equation we found in step 2 we get :
Answer: The speed of the cyclist before the change of wind took place is 12 mph.
5. After the semester is over, you discover that the math department has changed textbooks (again) so the bookstore won't buy back your nearly-new book. You and your friend Herman decide to get creative. You go to the roof of a twelve-story building and look over the edge to the reflecting...

...CBSE TEST PAPER-02 CLASS - IX Science (Motion)
1.
If a body starts from rest, what can be said about the acceleration of body? (a) Positively accelerated (c) Uniform accelerated (b) Negative accelerated (d) None of the above
[1]
2.
What does slope of position time graph give? (a) speed (b) acceleration (c) uniform speed
[1]
(d) Both (a) and (c) depending upon the type of graph. 3. When a body moves uniformly along the circle, then:(a) its velocity changes but speed remains the same (b) its speed changes but velocity remains the same (c) both speed and velocity changes (d) both speed and velocity remains same 4. Which of the following statements is correct? (a) speed distance are scalar, velocity and displacement are vector (b) speed distance are vector, velocity and displacement are vector (c) speed and velocity are scalar, distance and velocity are vector (d) speed and velocity are vector, distance and displacement are scalar 5. A car travels at a speed of 40km/hr for two hour and then at 60km/hr for three hours. What is the average speed of the car during the entire journey? 6. The velocity time graph of two bodies A and B traveling along the +x direction are given in the figure (a) Are the bodies moving with uniform acceleration? (b) Which body is moving with greater acceleration A or B? 7. Derive...

...Summary Worksheet
Complete one worksheet for each source. All worksheet and summaries must be turned in.
Fill in the bibliographic information below. You must type in your information. Handwritten worksheets will not be accepted. Parenthesis with ABib (ABib) and Sum (Sum) indicate the information is appropriate for either the Annotated Bibliography assignment and/or the Summary.
Author(s)’ Name(s)(Sum)
Article Title (Sum)
Journal Title
Date of Publication
Volume Number
Issue Number
Academic Format Style
Database
Fill in the content information below.
Thesis
(ABib & Sum)
Purpose
Audience
Important
Ideas
(ABib & Sum)
Assumptions
(Sum)
Conclusions,
implications,
and/or
consequences
(ABib & Sum)
Limitations
(ABib)
Reliability
(ABib)
On a separate sheet of paper write a brief summary (350 words) of the source. The summary must include the title of the article and the full name of the author(s). All summaries must be turned-in with the appropriate worksheet and publication page attached to the summary with one staple. Staplers capable of binding large number of pages are available in the library. Staple in the following order: summaries first, worksheets second, and lastly, publication page.
...