The rate of change of d(t) at t = 2 and t = 6 is the ratio between the change of distance (difference between the distances) to the time elapsed. That is,
r = (576 - 64) / (6 - 2) = 128 ft /s
The rate of change is equal to 128 ft/s and this represents the average speed at this time interval.
Answer:20 minutes
Explanation:
06:58am - 06:38am =20 minutes
Answer:
Explanation:
Given that,
The radius o Earth, R = 6,357,000 m
Mass of the Earth, M = 5.972 × 10²⁴ kg
The mass of an elephant, m = 6000 kg
We need to find the force of gravity on the elephant. The force acting between two objects is given by :
So, the required force of gravity on the elephant is .
Hello! You can call me Emac or Eric.
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Here is some good information that could help you out a lot!
Let’s begin by exploring some techniques astronomers use to study how galaxies are born and change over cosmic time. Suppose you wanted to understand how adult humans got to be the way they are. If you were very dedicated and patient, you could actually observe a sample of babies from birth, following them through childhood, adolescence, and into adulthood, and making basic measurements such as their heights, weights, and the proportional sizes of different parts of their bodies to understand how they change over time.
Unfortunately, we have no such possibility for understanding how galaxies grow and change over time: in a human lifetime—or even over the entire history of human civilization—individual galaxies change hardly at all. We need other tools than just patiently observing single galaxies in order to study and understand those long, slow changes.
We do, however, have one remarkable asset in studying galactic evolution. As we have seen, the universe itself is a kind of time machine that permits us to observe remote galaxies as they were long ago. For the closest galaxies, like the Andromeda galaxy, the time the light takes to reach us is on the order of a few hundred thousand to a few million years. Typically not much changes over times that short—individual stars in the galaxy may be born or die, but the overall structure and appearance of the galaxy will remain the same. But we have observed galaxies so far away that we are seeing them as they were when the light left them more than 10 billion years ago.
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Emacathy,
Brainly Team.
This question involves the concepts of torque, applied force, and force arm.
The net torque about the axle will be "0.94 N.m clockwise".
The net torque can simply be found by adding the torques produced by every force about the axle, that is at some perpendicular distance from the axle and whose line of action does not touch with the center point. We will take the clockwise direction as negative here, and the counter-clockwise direction as positive. The torque due to a force can simply be given as the product of the force and the perpendicular distance between center point and force, also known as force arm.
T = -3 N.m + 1 N.m + 1.06 N.m
<u>T = -0.94 N.m</u> (negative sign shows <u>clockwise direction</u>)
Learn more about torque here:
brainly.com/question/19247046?referrer=searchResults