laborious ... enclosed may help ... cos -angle = cos +plus angle ... sin - anfle = - sine angle
cos is even function, sine is odd ... draw rhe graohs
Answer:
A
Explanation:
SInce It is peaking at the top that's where energy is stored
Answer:
You should have noticed that the number of atoms in the reactants is the same as the number of atoms in the product. The number of atoms is conserved during the reaction. However, you will also see that the number of molecules in the reactants and products are not the same.
Answer:
acceleration, a = 
distance, d = 80 m
Given:
Initial velocity of object, v = 20 m/s
Final velocity of object, v' = 60 m/s
Time interval, 
Solution:
(a) Acceleration is the rate at which velocity changes and constant acceleration is when the velocity changes by equal amount in equal intervals of time.
Thus
acceleration, a = 
a = 
(b) Now, the distance covered is given by:
For a ball that starts rolling down a ramp the value of the change in its kinetic energy, ΔEk is: Positive
<h3>Meaning of Kinetic energy</h3>
Kinetic energy can be defined as the ability assumed by an object in motion.
Kinetic energy is also said to be a form of mechanical energy that is possessed by an object to be in motion.
In conclusion, For a ball that starts rolling down a ramp the value of the change in its kinetic energy, ΔEk is: Positive
Learn more about Kinetic energy: brainly.com/question/25959744
#SPJ1
