Explanation

Newton's first law of motion is also called as Law of inertia.

• Inertia is the ability of a body by virtue of which it opposes a change.
  
• According to Newton’s first law of motion, an object will remain at rest or in uniform motion in a straight line
• unless acted upon by an external force.
  • The inertia of rest: When a body is in rest, it will remain at rest until we apply an external force to move it. This property is called inertia of rest.
  • The inertia of motion: When a body is in a uniform motion, it will remain in motion until we apply an external force to stop it. This property is called inertia of motion.

Explanation

The mass of Earth is approximately 6.0 x 10^24 kilograms (5.98 x 10^24 kg).

This is a widely accepted scientific value, based on various measurements and calculations, including:

• Gravity measurements
• Satellite orbits
• Seismological data
• Planetary formation models

Explanation

Heat of vaporization is the amount of heat energy required to convert a substance from its liquid state to its gaseous state, without changing its temperature.

This energy is used to break the intermolecular forces between the molecules, allowing them to escape into the gas phase.

Explanation

The SI unit of acceleration is meters/second^2 (m/s^2 or ms^-2)

Acceleration (a) is defined as the rate of change of velocity.

Velocity is a vector quantity, and therefore acceleration is also a vector quantity.

Explanation

Power is calculated as the rate of work done or energy transferred:

Power = Work / Time

= 20 J / 10 s

= 2 W

So, the machine's power output is 2 watts.

Explanation

Heat is a form of energy, specifically thermal energy, which is transferred from one body to another due to a temperature difference.

It is a type of kinetic energy, where the particles of a substance vibrate or move rapidly, generating heat.

Explanation

Inhibitors are molecules that decrease the activity of enzymes, often by binding to a specific site on the enzyme.

Activators are molecules that increase the activity of enzymes, often by binding to a specific site on the enzyme.

Explanation

Power is the work done per unit time, measured in watts (W).

It represents the rate at which energy is transferred or work is done.

Additional Information:

• Efficiency is the ratio of output to input energy.
• Energy is the ability to do work.
• Force is a push or pull that can cause an object to change its motion.

Explanation

Gravitational force is always attractive, never repulsive.

According to Newton's law of universal gravitation, every point mass attracts every other point mass by a force acting along the line intersecting both points.

This means that gravity always pulls objects towards each other, never pushes them apart.

Explanation

Time is a scalar quantity because it only has magnitude (duration) but no direction.