Answer:
V₂ = 1.5 m/s
Explanation:
given,
speed of the first piece = 6 m/s
speed of the third piece = 3 m/s
speed of the second fragment = ?
mass ratios = 1 : 4 : 2
fragment break fly off = 120°
α = β = γ = 120°
sin α = sin β = sin γ = 0.866
using lammi's theorem

A,B and C is momentum of the fragments

4 x V₂ = 2 x 3
V₂ = 1.5 m/s
Answer: How much gravitational potential energy does the ball have at this point? At h = 20.4 m the gravitational potential energy of the ball reaches maximum.
How much work did I do lifting up the ball? As you are lifting the object you are doing work on the object. The work W done on an object by a constant force is defined as W = F·d. It is equal to the magnitude of the force, multiplied by the distance the object moves in the direction of the force.
Mechanical advantage (MA = slope/height)
here length of slope = 9Hheight = H so mechanical advantage = ---- 9H/H= 9
different amounts of sunlight can be conducted throughout the world but some special are
Explanation:
take bisc(*- calcoihvx to ordz which makes to easy
Answer:
Labor Day Weekend--No School
9/1/2021
Hello Students!
There will be no School on Friday Sept 3 and Monday Sept 6
All centers will be closed on Friday 9/3 and Monday 9/6
School will resume on TUESDAY, Sept 7
Enjoy your long weekend!
Explanation:
Labor Day Weekend--No School
9/1/2021
Hello Students!
There will be no School on Friday Sept 3 and Monday Sept 6
All centers will be closed on Friday 9/3 and Monday 9/6
School will resume on TUESDAY, Sept 7
Enjoy your long weekend!