"No heat will flow between object A and object B" is the one among the following choices given in the question that describes how heat will <span>flow between object A and object B. The correct option among all the options that are given in the question is the second option or option "B". I hope it helps you.</span>
Answer:
The correct answer is t = 0.92s
Explanation:
Initial velocity v0 = 3.0 m/s
Displacement Δy = ?
Acceleration a = -9.8m/s2
Final velocity v = -6.0m/s
Time t=? Target unknown
We can use the kinematic formula missing Δy to solve for the target unknown t:
V=v0+at
We can rearrange the equation to solve to t:
V-v0=at
t= v-v0/a
Substituting the known value into the kinematic formula gives:
t= (-6.0m/s)-(3.0m/s)
————————————
-9.8m/s2
= -9m/s
—————-
-9.8m/s2
=0.92s
B). Some elements found in nature exist as molecules.
That is, their atoms travel around in bound pairs.
Examples are Hydrogen, Oxygen, and Nitrogen.
A). No. Without atoms, you can't make a molecule.
C). No. A compound is a chemical combination of two or more elements.
D). No. An atom is the smallest unit of ONE single element.
Answer:
2.4681 m/s
Explanation:
= Mass of cannon ball = 29 kg
= Mass of performer = 65 kg
= Initial Velocity of cannon ball = 8 m/s
= Initial Velocity of performer = 0 m/s
v = Velocity of combined mass
As the linear momentum of the system conserved
The recoil velocity is 2.4681 m/s
