Which statement about covalent bonds is true
2 answers:
You might be interested in
Answer:
Q1: c
Q2: a
Explanation:
you can tell the factors by looking at the formulas for kinetic and potential energy
for question 1 look at the formula for kinetic energy
the variables needed in order to calculate an object's kinetic energy are mass and velocity.
hence, when mass and velocity changes, kinetic energy changes, showing that mass and velocity are the factors affecting kinetic energy
same thing for the second question
as g (acceleration due to gravity) is considered constant (10 ) it will not be considered as a factor
and thus, the factors affecting potential energy are mass and height
To solve this problem it is necessary to apply the concepts related to Torque as a function of Force and distance. Basically the torque is located in the forearm and would be determined by the effective perpendicular lever arm and force, that is
Where,
F = Force
r = Distance
Replacing,
The moment of inertia of the boxer's forearm can be calculated from the relation between torque and moment of inertia and angular acceleration
I = Moment of inertia
= Angular acceleration
Replacing with our values we have that
Therefore the value of moment of inertia is