To solve this problem we will apply the linear motion kinematic equations, specifically the concept of acceleration as a function of speed and time, as well as Newton's second law.
PART A) Acceleration can be described as changing the speed in a period of time therefore,

Force is the proportional change between mass and acceleration therefore


PART B) We will apply the same concept given but now we will change the time to 21s therefore:

Now the force


I think the correct answer from the choices listed above is option C. The scatter plot above shows the relationship between the pressure and volume of a gas in which the <span>pressure of a gas increases as its volume decreases. However, they are not linearly related. Hope this answers the question.</span>
Because when liquids are cooled the molecules slow down and that causes liquids to freeze
Answer:
Explanation:
Science is an objective, self correcting method for gathering and organizing information about the natural world through repeated observation and experimentation.
Answer:
The measured value of the constant is known with some certainty to four significant digits. In SI units, its value is approximately 6.674×10−11 m3⋅kg−1⋅s−2. The modern notation of Newton's law involving G was introduced in the 1890s by C. V. Boys.