Displacement of a body is always in a straight line in the direction of the final position regardless of the path taken to reach the final position.
Therefore, the displacement of the car can be obtained by joining the car's initial position to the final position and then counting the number of squares covered by the line. Then we multiply the number of squares by the scale and note the direction of the final position from the initial.
that is: 4×1km= 4km North since displacement is a vector.
A, if u need a step-by-step just ask
Answer:
It will be 29.90 KJ/gram
Explanation:
We have given mass of compound burn m = 0.74 gram
Temperature is changes from
So change in temperature
Heat capacity is given as
We know that is given as
In KJ/gram it will be
Answer:
The time taken is 84 seconds, please give the brainliest award would be much appreciated.