Reference no: EM13963298
1. A train travels due south at 60 m/s. It reverses its direction and travels due north at 60m/s. what is the change of velocity of the train?
2. A spring loaded gund is aimed horizontally and is used to launch identical balls with different initial speed. The gun is at a fixed position above the floor. The balls are fired one at a time. If the speed of the second projectile fired is twice the speed of the first projecitle fired. how is the horizontal range affected?
3. A basketball is launched with an initial speed of 8.0 m/s and follows the trajectory shown. The ball enters the basket 0.96 s after it is launched. What are the distances a and y.
4. A football is kicked with a speed of 18 m/s at an angles of 60 degrees to the horizontal
a. What are the respective horizontal and veritcal components of the initial velocity of the football?
b. How long is the football in the air?
c. How far does the football travel horizontally before it hits the ground?
5. A motorcycle has a velocity of 15 m/s, due south as it passes a car with a velocity of 24 m/s, due north. What is the magnitude and direction of the velocity of the motorcycle as seen by the driver of the car?
6. A man points his rowboat north from A to B, straight across a river of width 100 m. The river flows due east. The man starts across, rowing steadily at 0.75 m.s and reaches the other side of the river at point C. 150 m downstream from his starting point.
a. What is the speed of the river?
b. While the man is crossing the river, what is his velocity relative to the shore?
|
What is the resistance of the heating coil
: If a lamp has a resistance of 120 ohm when it operates at a power of 1.00 x 10^2 W, what is the potential difference across the lamp?
|
|
Paper - terrorist organization
: For this paper, pay close attention to the following guidelines. Keep in mind, college-level research and writing is a process that takes time, and you will likely need to write multiple drafts of your work to create a quality paper. Select one te..
|
|
Main forms of legal business ownership
: Compare and contrast (pros and cons) of the 3 main forms of legal business ownership. (Sole proprietorships, partnerships, and corporations) So, describe each one, and tell us a little about the pros/cons or advantages/disadvantages of each.
|
|
Discuss the vulnerabilities in the cyber security
: Identify and discuss the vulnerabilities in the cyber security practices and policies at the time of either the event in Georgia, or the event in Estonia, and the global impact resulting from that one particular event. Write about the cyberattack ..
|
|
How long is the football in the air
: A motorcycle has a velocity of 15 m/s, due south as it passes a car with a velocity of 24 m/s, due north. What is the magnitude and direction of the velocity of the motorcycle as seen by the driver of the car?
|
|
Detriment of the public interest
: Concern that the manufacturers of harmful products such as tobbacco have influence on law makers to the detriment of the public interest is used as evidence of which criticism of marketing?
|
|
Calculate the resistance of a piece of 20-gauge copper wire
: A 150-W street lamp is operated for 12 hours a day. How much energy does it take to operate the lamp for 30 days? Express your answer in kilowatt-hours and in joules.
|
|
Different levels of quality for a company
: The use of price points for reference to different levels of quality for a company's related products is typical of which product mix pricing strategy?
|
|
How your perspective on the role of the professional nurse
: Write a 500 word personal reflection on how your perspective on the role of the professional nurse has changed since the beginning of this course. Include details of how this course has influenced your understanding of role clarity.
|