A Chef is looking for a new frying pan that will allow her to cook food quickly at temperatures above 500°C. Use the data provid
ed in the table to explain to the Chef which metal would be the best choice for a new frying pan for her kitchen.
What is your claim? Which metal is the best choice? (
What is your evidence?
What is your reasoning?
What is your claim? Which metal is the best choice? (
What is your evidence?
What is your reasoning?
1 answer:
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Answer:
average speed = 66.67 km/h
Explanation:
In order to find the average speed of the train, you need to calculate the total distance traveled, divided by the time it took to cover that distance. So for the total distance:
Distance= 120 km + 180 km = 300 km
For the total time we need to add three different quantities, two of which we need to derived based on the information provided:
time for first part of the trip:
for the time of the stop:
for the last part of the trip:
Which gives a total of 4.5 hours
Then, the average speed is: 300/4.5 km/h = 66.67 km/h
Answer:
When net force of zero acting on a ball which is at rest , then the object center of mass will not accelerate , but the object may begin to rotate .
Explanation:
Here when there is an object where several forces are acing upon are zero then the center of mass will not accelerate because we know that
Where acceleration of center of mass
= net force = 0
So the acceleration of center of mass will be zero
But the torque ,may not be zero as torque is product of individual force and perpendicular force .
Since if torque is not equal to zero then the object may begin to rotate