Answer:
The acceleration of the ball when it begins to move is 200 m/s²
Explanation:
The given parameters are;
The mass of the metal ball, m = 0.025 kg
The force exerted by the magnet on the ball, F = 5 N
From Newton's second law, F = m × a
Where;
a = The acceleration of the ball
Therefore, by substitution, we have;
5 = 0.025 × a
a = 5/0.025 = 200 m/s²
The acceleration of the ball when it begins to move = 200 m/s²
Answer:
838 torr
Step-by-step explanation:
To solve this problem, we can use the <em>Combined Gas Laws</em>:
p₁V₁/T₁ = p₂V₂/T₂ Multiply each side by T₁
p₁V₁ = p₂V₂ × T₁/T₂ Divide each side by V₁
p₁ = p₂ × V₂/V₁ × T₁/T₂
<em>Data:
</em>
p₁ = ?; V₁ = 2.42 L; T₁ = 27.0 °C
p₂ = 754 torr; V₂ = 2.37 L; T₂ = -8.8 °C
Calculations:
(a) Convert <em>temperatures to kelvins
</em>
T₁ = (27.0 + 273.15) K = 300.15 K
T₂ = (-8.8 + 273.15) K = 264.35 K
(b) Calculate the<em> pressure
</em>
p₁ = 754 torr × (2.37 L/2.42) × (300.15/264.35)
p₁ = 754 torr × 0.979 × 1.135
p₁ = 838 torr
Answer:
The evaporator is located inside a refrigerator and is the part that makes the items in the refrigerator cold. As the refrigerant turns from a liquid into a gas through evaporation, it cools the area around it, producing the proper environment for storing food.
Explanation:
Answer:
The answer is
<h2>2.0 g/mL</h2>
Explanation:
The density of a substance can be found by using the formula
<h3>
</h3>
From the question
mass = 10 g
volume = 5 mL
The density of the substance is
We have the final answer as
<h3>2.0 g/mL</h3>
Hope this helps you
SCBA tanks use regular air, not pure oxygen. <span>Modern SCBA cylinders are carbon fiber wrapped aluminum. They do get hot under high temperature conditions. But, the most common ones today are tested to 6000 PSI, and filled to 4500. This gives them some buffer for increase in pressure due to heating. Furthermore, any increase in pressure from heat is usually offset by the rapid release of air as we breathe the tank down. Firefighting is heavy, hot, difficult work, and a tank of air usually lasts about 2/3 of what it states on the label.</span>
