Missing figure: find it in attachment.
Answer:
Force D
Explanation:
In order to answer the question, let's keep in mind that the force of gravity on an object on Earth is the attractive force exerted by the Earth on the object; its direction is always downward (towards the Earth's centre), and its magnitude is given by
F = mg
where m is the mass of the object and g is the acceleration of gravity.
It follows immediately that in the figure, the force of gravity is the only force acting downward: therefore, force D.
The other forces are called:
Force A: thrust (it is the forward force generated by the engines)
Force B: lift (it is the upward produced by the aerodynamics of the wings)
Force C: air resistance (it is the backward force due to the friction between the air and the surface of the plane)
Answer:
Explained
Explanation:
1.The macroscopic form of kinetic energy is organized whereas the microscopic kinetic energy disorganized form of energy.
2.Observing macroscopic kinetic energy is easier than the microscopic energy.
3. All macroscopic kinetic energy can be converted to useful work whereas microscopic kinetic energy can not be.
4. Macroscopic kinetic energy is possessed by moving objects whereas microscopic objects possessed by the virtue of motion, rotation, vibrations of atoms in substance.
Wind energy is macroscopic energy as it can be harnessed to produce electricity and perform some useful work. And discussed above useful work can only be performed using macroscopic kinetic energy.
Answer:
Atomic size gradually decreases from left to right across a period of elements.
Explanation:
This is because, within a period or family of elements, all electrons are added to the same shell. However, at the same time, protons are being added to the nucleus, making it more positively charged.
It Increases. I just took a quiz with the same question.
Answer:
D: m² (square meters, area)
Explanation:
Derived units are a combination of SI base units. m² is the only option that's a combination of base units (meters times meters).
