Reference no: EM13811113
1. A subatomic particle with mass m initially at rest suddenly decays. If one of the resultant particles with mass 0.40 m of mass leaves with a velocity of 5.5 x 105 m/s, what is the velocity of the other particle created?
A) 3.7 x 105 m/s
B) 6.0 x 105 m/s
C) 3.3 x 105 m/s
D) 2.5 x 105 m/s
2. A car uniformly decelerates at a rate of -5.00 m/s2. How far does the car travel after 1.50 seconds if it initially was moving at a speed of 25.0 m/s?
A) b. 37.5 m
B) d. 28.1 m
C) c. 31.9 m
D) a. 25.0 m
3. A 7.93 kg box is pulled along a horizontal surface by a force FP of 84.0 N applied at a 47.0º angle. If the coefficient of kinetic friction is 0.35, what is the acceleration of the box?
4. A block is at the top of a ramp that is 4.5 m above a table. If the block slides without friction, how fast is it going at the bottom of the ramp?
A) a. 9.4 m/s
B) d. 3.6 m/s
C) b. 4.5 m/s
D) c. 0.0 m/s
5. A 25 kg is acted on by a 45 N horizontal force. If the box accelerates at a rate of .75 m/s2, what is the coefficient of kinetic friction between the box and the table?
A) a. 0.25
B) c. 0.55
C) b. 0.11
D) d. 1.05
6. Three forces pull on a block, the first is 65 N and in the positive x direction. The second is 65 N in the negative x direction and the third is 45 N and is 90 degrees from the first two forces in the positive y direction. What can you say about the resultant force?
A) c. The resultant force is 45 N and in the negative y direction.
B) d. The resultant force is 65 N and in the negative y direction.
C) b. The resultant force is 45 N and in the positive y direction.
D) a. The resultant force is zero.
7. The international space station orbits the Earth at an altitude of about 250 km. What is the acceleration due to gravity at that height above the ground? The mass of the Earth is 5.98 x 1024 kg and the radius of the Earth is 6371 km.
A) a. 9.8 m/s5
B) b. 0 m/s5
C) c. 9098710 m/s5
D) d. 9.10 m/s2
8. A cannonball is fired horizontally with an initial velocity of 655 m/s from the end of a cliff 725 m high. How far in the x direction does the cannonball in the air before it hits the ground?
A) c. 5670 m
B) b. 4030 m
C) d. 9540 m
D) a. 7960 m
|
The probability that the true value of the mean amount of ti
: Suppose that 30 people have been asked in a survey about how many hours they spend watching TV per day. Then, use these data to find a 95% confidence interval for the mean amount of time spent watching TV is 1.5 to 3.2 hours. Which statement is NOT t..
|
|
Major differences between aggregate planning
: What are the major differences between aggregate planning in manufacturing and aggregate planning in services?
|
|
Japan and japanese culture for kim woods only
: Japan and Japanese Culture for Kim woods only
|
|
Achieve a strategic advantage in the marketplace
: In supply management, one component to explore is how an organization's supply chain helps to achieve a strategic advantage in the marketplace.
|
|
What is the velocity of the other particle created
: What is the velocity of the other particle created - How far does the car travel after 1.50 seconds if it initially was moving at a speed of 25.0 m/s and How far in the x direction does the cannonball in the air before it hits the ground?
|
|
Understanding-coping with change
: Change is everywhere, yet very few people seem to embrace the concept. We are, for the most part, creatures of habit and follow daily routines. When change occurs, our activities and thought patterns are disrupted.
|
|
Train practitioners in public policy rather than examining
: A practical-based public policy curriculum would help to better train practitioners in public policy rather than examining public policy theory. Others believe that a firm grounding in theory helps practitioners to understand the larger universe o..
|
|
Interoffice memos and the related ethics
: You have just been appointed to head up the committee to plan the upcoming holiday party for your company, which employs around three hundred people. Susan, Mark, John, and Kathy have also been appointed to this committee.
|
|
Outline and preliminary list of references
: Outline and Preliminary List of References
|