Answer:
C) Highly portable
Explanation:
This means they can run on any computer or platform that supports Java without the need for recompillation.
This idea is popularly called WORA that is Write Once Run Anywhere.
Software Applications written in Java are compiled to bytcode (.class) which are intended to run on the Java Virtual Machine (JVM) irrespective of the architecture of the computer or device.
Answer:
Using version control tools like Git and Github.
Explanation:
Version control is a vital tool in programming in recent times. it helps to prevent loss of source codebase and creating unwanted folders for storing multiple codebases to prevent excess storage usage and time consumption.
Git and Github is a platform that handles version control and collaboration between co-workers. When a repository is created, its initial branch is called the master branch and when a staged code is committed, the commit is recorded. These records can be retrieved using the commit hash value and resetting the current unstaged file or code. A new branch can created to hold a different version of an application and merged later with the master branch.
Answer: High-level computer languages must be translated into assembly or machine languages by a compiler before they can be executed, making them slightly slower to execute than raw assembly or machine language. The answer is D.
Answer:
The answer to this question is "Confidentiality".
Explanation:
The answer is Confidentiality because in any computer system many files are important for there user. If the file was deleted, corrupted or stolen from the computer. So the user faces the difficulty to avoid this type of problem computer system provides a technique that is access control or it is also known as Confidentiality. It is a technique that controls who or what type of user's use of resources in a computing environment.
So the answer to this question is Confidentiality.
Answer:
h = 8.588 m
Explanation:
Given:
Mass of hockey puck: m = 200 g = 0.2 K
g
Angle of incline: θ = 30º (with respect to horizontal)
Coefficient of static and kinetic friction between the puck and ramp:
μ
s = 0.4 and μk = 0.3
initial speed:
v = 3.5 m
/s
Let h be the vertical height reached by the puck, above the ground. This corresponds to a distance of
d = h
*sin 30º = 2
*h
along the incline. As the puck is moving, only kinetic friction comes into play as it climbs up the incline. Let N be the normal reaction exerted by the metal ramp on the ball. Then,
N = m*g
*cos θ = 0.2
*9.8
1*cos 30
º = 1.6991 N
Therefore, kinetic friction acting on the puck is:
F
k = μ
k
*N = 0.3
*1.6974 = 0.50974 N
From work energy theorem, the change in kinetic energy should equal the work done by friction and gravity. Therefore,
0.5* 0.2
*16² = 0.50974
*2h + 0.2*9.81*h
⇒ h = 8.588 m
