- Two 3.0g bullets are fired with speeds of 40.0 m/s and 80.0 m/s, respectively.
- Mass of the 1st bullet (m1) = 3 g = 0.003 Kg
- Mass of the 2nd bullet (m2) = 3 g = 0.003 Kg
- Velocity of the 1st bullet (v1) = 40 m/s
- Velocity of the 2nd bullet (v2) = 80 m/s
- We know, kinetic energy of a body
- Kinetic energy of the 1st bullet
- Kinetic energy of the 2nd bullet
- So, the 2nd bullet which has greater velocity has more kinetic energy.
- Therefore, the ratio of their kinetic energies
<u>Answer:</u>
The kinetic energies of the bullets are 2.4 J and 9.6 J.
The bullet having greater velocity has more kinetic energy.
The ratio of their kinetic energies is 1 : 4.
Hope you could get an idea from here
Doubt clarification - use comment section.
Where plates are pulled away (diverge) from each other molten magma flows upward between the plates forming mid-ocean<span> ridges, underwater volcanoes, hydrothermal vents, and new </span>ocean floor<span> crust. The Mid-Atlantic Ridge, is an example of this type of plate boundary.</span>
Answer:
Explanation:
Let the amplitude of individual wave be I and resultant amplitude be 1.703 I . Let the phase difference be Ф in terms of degree
From the formula of resultant vector
(1.703I)² = I² + I² + 2 I² cosФ
2.9 I² = 2I² + 2 I² cosФ
.9I² = 2 I² cosФ
cosФ = .9 / 2
= .45
Ф = 63.25 .
Answer:
velocity in problems per hour = 4 per hour
so correct option is b. 4 per hour
Explanation:
given data
worked on homework time = 1.5 hour
completed = 6 problems
to find out
What is the velocity in problems per hour
solution
we know that Shirley solve complete 6 accounting homework problem in 1.5 hour so her velocity in problems per hour will be as
velocity in problems per hour = ..................1
put here value we will get
velocity in problems per hour =
velocity in problems per hour = 4 per hour
so correct option is b. 4 per hour