A code of ethics is a set of principles and rules used by individuals and organizations to govern their decision making process, as well as to distinguish right from wrong. These codes are often more complex and contextual than simple morality, acknowledging specific situations and providing guidance. Many codes of ethics also specify penalties for violations. Professional and personal codes of ethics ensure that adherents are behaving in a socially acceptable manner. Organizations with an established code of ethics usually have review processes and appeal procedures in place to guard against malicious or self-serving use of the code.
You can conclude that the force of static friction acting on the boxcar is equal to 200N while you're pushing on it.
Answer:
Given,
Explanation:
mass(m)=2400kg
velocity(v)=15m/s
kinetic energy(K.E.)=1/2mv2
KE=1/2×2400×15^2
=1/2×540000
=270000Joule
Answer:
Approximately 
.
Explanation:
The formula for the kinetic energy 
of an object is:
,
where
is the mass of that object, and
is the speed of that object.
Important: Joule (
) is the standard unit for energy. The formula for requires two inputs: mass and speed. The standard unit of mass is 
while the standard unit for speed is 
. If both inputs are in standard units, then the output (kinetic energy) will also be in the standard unit (that is: joules,
Convert the unit of the arrow's mass to standard unit:
.
Initial of this arrow:
.
That's the same as the energy output of this bow. Hence, the efficiency of energy transfer will be:
.
"Zero acceleration" means "velocity" that's not changing.
Sadly, it seems that both of these words are almost always
misinterpreted and misunderstood. "Acceleration" does NOT
mean "speeding up", and "velocity" does NOT mean speed.
"Velocity" is the speed AND direction of motion. So, for example,
'30 miles per hour north' and '30 miles per hour west' are the same
speed but different velocities.
"Acceleration" is ANY change in speed OR direction. Consider three
different families in three different cars. One car is speeding up, one is
slowing down, and the third is driving around a curve at a steady speed.
ALL three of the cars are accelerating.
