Explanation:
Given:
First, we calculate the acceleration of the car during this time:
Plugging in the given values, we get
Now that we have the value for the acceleration, we can solve for the distance traveled during the time t:
Answer:
Option B. The distance between the objects in Figure A is shorter than the distance between the objects in Figure B.
Explanation:
The force of attraction between two masses is given by the following equation:
F = GM₁M₂ / r²
Where:
F => is the force of attraction
M₁ and M₂ => are the masses of the two objects
G => is the gravitational constant.
r => is the distance between the two objects
From the above formula,
The force of attraction (F) is directly proportional to the product of the two masses and inversely proportional to the square of their apart.
This implies that:
1. An increase in the masses of the object will bring about an increase in the force of attraction and a decrease in the masses will leads to a decrease in the force of attraction.
2. An increase in the distance between the two masses will leads to a decrease in the force of attraction and a decrease in the distance between the two masses will lead to an increase in the force of attraction.
Considering the options given in the question above, option B gives the correct answer to the question.
Answer:
F = 2 I A / c
Explanation:
The radiation pressure on a reflective surface is
P = 2 S / c
Where S is the Poynting Vector and c the speed of light
Furthermore pressure is defined as the ratio of force to area
P = F / A
Let's replace
F / A = 2 S / c
F = 2 S A / c
The poynting vector is the power per unit area that is equal to the intensity
S = I
F = 2 I A / c
Answer:
The Rock
Explanation:
The paper is very thin and light so it has more air reisistance which will cause it to fall slower than the rock that has a larger density.
Answer:
Color
Explanation:
Thus, for stars, considering them as “black bodies”, we can get an approximate figure for their temperature by measuring their dominant frequency (color). Technically scientists measure the brightness of the blue light and that of red light from the star, and from this they can calculate the temperature of the star.
