Answer:
The angular acceleration of the centrifuge is -231.74 rad/s².
Explanation:
Given that,
Angular speed = 3500 rev/min = 366 rad/s
We need to calculate the angular displacement
Using formula of angular displacement
Put the value into the formula
We need to calculate the angular acceleration
Using equation of motion
Hence, The angular acceleration of the centrifuge is -231.74 rad/s².
Hello there!
Plastic is definitely off. Plastic can melt easily in extreme heat, and if it doesn't melt, the chemicals used to create it will seep into the food. D is false.
Aluminum is off too, if we're talking about heating up food in a microwave. Aluminum can spark in the heat and can catch fire/explode in most cases. So that would also be off.
Foam is off as well. Whether it be foam bubbles or foam board, it's probably NOT a good idea to hear up your food in the microwave with foam.
But ceramic would probably be the best choice. Ceramic is microwave safe, it doesn't melt, catch fire, or seep chemicals in the food when placed in that kind of heat. That is probably why a lot of manufacturers use ceramic glass to make plates and bowls in the first place.
So your answer should be B. Ceramic. Hope this helped you! :)
Answer:
Time = 1.413 seconds.
Explanation:
Given the following data;
Force = 883N
Distance = 0.6m
Power = 375 Watts
To find the time;
First of all, we would find the work done by Antonio.
Workdone = force * distance
Workdone = 883 * 0.6
Workdone = 529.8 Joules.
Now, to find the time;
Time = workdone/power
Substituting into the equation, we have
Time = 529.8/375
Time = 1.413 seconds.
Therefore, it took her 1.413 seconds to complete the push-up.
False. It is more expensive to mine minerals in deep water deposits
The velcocity equals acceleration times time
which is 50 ms per sec