Answer:
B, it includes a control group and an experimental group.
<span>We can draw a free body diagram for the safe to show all the horizontal forces acting on the safe. The three horizontal forces are Clyde's force, Bonnie's force, and friction. Since the safe slides at a constant speed (no acceleration), the net force must be zero.
0 = Clyde's force + Bonnie's force - friction
friction = Clyde's force + Bonnie's force
mg mu = Clyde's force + Bonnie's force
mu = (Clyde's force + Bonnie's force) / (mg)
mu = (445 N + 350 N) / (300 kg x 9.80~m/s^2)
mu = 0.27
The coefficient of friction is 0.27</span>
Answer:
The answer to your question is Friction
Explanation:
As is mentioned in the question, Betsy held on to the sides of the slide the whole way down, that means that her hands were rubbing the slide and this process causes a force called <u>friction. </u>And Friction is perceived as heat.
The definition of friction is: Friction is the resistance to motion of one object moving relative to another.
In your question her hands create a resistance to motion.
The kinetic molecular theory of matter offers a description of the microscopic properties of atoms (or molecules) and their interactions, leading to observable macroscopic properties (such as pressure, volume, temperature). An application of the theory is that it helps to explain why matter exists in different phases (solid, liquid, and gas) and how matter can change from one phase to the next.
Answer:
not sure. I'll try answering this later
Explanation:
I'm not sure. I'll try answering this later