Answer:
Mass of the liquid in the tank will be
Step-by-step explanation:
We have given volume of tar
1 gallon = 3.785 liter
So
Specific gravity = 1.2
Density of water
We know that specific gravity
Density of liquid
So mass of liquid = volume × density
=
So mass of the liquid in the tank will be
Answer:
Ren was 27.5 meters away from her family.
Step-by-step explanation:
Ren Qian was at a height of 10 meters to the ground. Let the distance from her vertical point on the ground to her family (i.e the ground distance) be represented by x.
But the angle of depression is measured with respect to the horizontal plane, so;
the vertical angle = - 20°
=
Applying the appropriate trigonometric function, we have;
Tan θ =
Tan =
⇒ x = 10 x Tan
= 10 x 2.7475
= 27.475
x = 27.5 meters
Ren was 27.5 meters away from her family.