Answer:
2.726472 s more or 1.5874 times more time is taken than 10-lb roast.
Explanation:
Given:
- The cooking time t is related the mass of food m by:
t = m^(2/3)
- Mass of roast 1 m_1 = 20 lb
- Mass of roast 2 m_2 = 10 lb
Find:
how much longer does a 20-lb roast take than a 10-lb roast?
Solution:
- Compute the times for individual roasts using the given relation:
t_1 = (20)^(2/3) = 7.36806 s
t_2 = (10)^(2/3) = 4.641588 s
- Now take a ration of t_1 to t_2, to see how many times more time is taken by massive roast:
t_1 / t_2 = (20 / 10)^(2/3)
- Compute: t_1 / t_2 = 2^(2/3) = 1.5874 s
- Hence, a 20-lb roast takes 1.5874 times more seconds than 10- lb roast.
t_2 - t_1 = 2.726472 s more
Answer:
Surface (skin) should be smooth and body should be streamlined shaped.
Answer:
ответ 1.25 × 10‐³ и вот ваш ответ
Answer:
360J
Explanation:
In physics, the kinetic energy of an object is the energy that it possesses due to its motion. It is defined as the work needed to accelerate a body of a given mass from rest to its stated velocity. Having gained this energy during its acceleration, the body maintains this kinetic energy unless its speed changes. The same amount of work is done by the body when decelerating from its current speed to a state of rest.
Hi there!
<u>False. </u>
Imagine if we released a positive charge between two parallel charged plates (one negative, and the other positive).
Since like charge repels, the positive charge would be repelled by the positive plate and would move towards negative plate, as opposite charge attracts.
The Electric potential of the POSITIVE charge increases as you move closer to the positive plate, with the potential decreasing as you move closer to the negative plate. Since the positive charge will accelerate towards the negative plate, it is LOSING electric potential energy.
As it loses electric potential energy, due to the conservation of energy, it must GAIN kinetic energy. There is work being done on the positive charge due to the potential difference between the plates, which increases its kinetic energy.
Therefore, the given statement is false.