The magnitude of force exerted on the woman by the floor when the lift is accelerating is 150 Newton.
<u>Given the following data:</u>
- Acceleration = 2.5
To calculate the force exerted on the woman by the floor when the lift is accelerating, we would apply Newton's Second Law of Motion:
<h3>
Newton's Second Law of
Motion.</h3>
Mathematically, Newton's Second Law of Motion is given by this formula;
Substituting the given parameters into the formula, we have;
Force = 150 Newton.
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The Earth's natural climate cycle
Over the last 800,000 years, there have been natural cycles in the Earth's climate. There have been ice ages and warmer interglacial periods. After the last ice age 20,000 years ago, average global temperature rose by about 3°C to 8°C, over a period of about 10,000 years.
Answer:
The initial velocity of the gymnast is 8.5 m/s.
Explanation:
We can use the kinematic equation
to figure out the initial velocity of the gymnast.
Now, when the gymnast reaches the maximum height, the distance he has traveled is , and his velocity is zero; therefore .
Thus, we have
The amount of thermal energy required to convert 1.75 kg of solid copper at 1358 K to liquid at 1358 K is 360.5 KJ
Q = m *
Q = Thermal energy
m = Mass
= Latent heat of copper
m = 1.75 kg
= 206 KJ / kg
Q = 1.75 * 206
Q = 360.5 KJ
Thermal energy is a type of energy that is responsible for a system's temperature. The flow of thermal energy is called as heat.
Therefore, the amount of thermal energy required is 360.5 KJ
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