In is the preposition
So "in the closet" is the prepositional pharse
(could you let me know if im right?)
Answer:
Explanation:
Given data
For Part (a)
Starting with the -ve acceleration of the body (opposite to the gravitational force)
Using equation of motion
For Part (b)
Using the result in Part (a) we can substitute in other equation of motion to get time t:
For Part (c)
At state 2 where vo=0m/s and the acceleration is positive (same direction as the gravitational force)
Answer:
Explanation:
a )
momentum of baseball before collision
mass x velocity
= .145 x 30.5
= 4.4225 kg m /s
momentum of brick after collision
= 5.75 x 1.1
= 6.325 kg m/s
Applying conservation of momentum
4.4225 + 0 = .145 x v + 6.325 , v is velocity of baseball after collision.
v = - 13.12 m / s
b )
kinetic energy of baseball before collision = 1/2 mv²
= .5 x .145 x 30.5²
= 67.44 J
Total kinetic energy before collision = 67.44 J
c )
kinetic energy of baseball after collision = 1/2 x .145 x 13.12²
= 12.48 J .
kinetic energy of brick after collision
= .5 x 5.75 x 1.1²
= 3.48 J
Total kinetic energy after collision
= 15.96 J
A whole sentence includes a subject and a predicate
