Answer:
I just toughed it out and talked with friends
Explanation:
Answer:
A. 112 J
Explanation:
KE = ½mv² = ½(0.14)40² = 112 J
Answer:
3.32 m/s
Explanation:
From the law of conservation of energy, the sum of mechanical and kinetic energy should be equal to the 10 J given. Potential energy is given by mgh where m is mass, g is acceleration due to gravity and h is the height. For this case,
and l is string length, given as 2 m, \theta is given as 50 degrees. Kinetic energy is given by
and it is this velocity that is unknown.

Answer:
reflection is the act of reflecting or the state of being reflected while echo is
reflection of sound waves from a surface back to the initial listener
Answer:
<h3>The answer is 0.115 mL</h3>
Explanation:
The volume of a substance when given the density and mass can be found by using the formula

From the question
mass = 10 g
density = 87 g/ml
We have

We have the final answer as
<h3>0.115 mL</h3>
Hope this helps you