Answer:
she should write about how big is it and what the sun looks and how far away is it from earth.
Answer:
(a) decrease
Explanation:
Viscosity is the resistance which occur to flow of the fluid.
More the inter molecular forces between particles of the liquid, more the viscosity of liquid.
<u>Effect of temperature on viscosity:-</u>
Viscosity decreases with the increase in the temperature as forces among the particles decrease on increasing temperature. The kinetic energy of the particles of the liquid increases causing to move in more random motions and thus weaker inter molecular forces and this offer less resistance to the flow.
<u>Hence, viscosity of the liquids decrease with the increasing temperature.</u>
Answer:
Option C
Explanation:
given,
velocity of airplane = 80 m/s
angle with the horizontal = 15°
speed of the ground= ?
when the plane is taking off the horizontal component of the velocity is v cosθ
so,
ground speed of the airplane is =
=
v = 77.27 m/s
horizontal velocity of the air plane comes out to be 77.27 m/s ≅ 77 m/s
so, the correct option is Option C
<span>Electrons occupy the energy levels of an atom. </span>
The reactants are the substances that start the chemical reaction, while the products are the substances that are produced due to the chemical reaction.
In the chemical reaction of the problem:
the substances on the left (Zn and S) are those that start the reaction, so they are the reactants, while the substance on the right (ZnS) is the one produced in the reaction, so it is the product.