Answer:
Hope this helps if not so sorry ;-;
Explanation:
Work is done when a force that is applied to an object moves that object. The work is calculated by multiplying the force by the amount of movement of an object (W = F *
Note:
Have a nice day :)
Answer:
1 feet
Explanation:
1 feet = 1 feet so its one feet
Answer:
i think cool air moves slow and hot air moves fast
Given there is a standing wave a 200 and 250Hz, and there are none between 250 and 300Hz, we know that the difference in frequency between each harmonic is 50Hz.
Therefore, the fundamental frequency (the lowest that can be achieved), is 50Hz, as it is 0+the difference in frequency between each harmonic.
The third harmonic is 3x50 = 150Hz, as the 1st harmonic is the fundamental frequency, the 2nd is the fundamental frequency plus the difference between each harmonic and so on.
Answer:
The speed of the book was 30 mph the moment after the crash.
Explanation:
Here we invoke Newton's 1st law which says that when no forces acting are on a body, it will not change its motion—if its a rest, it will remain at rest; if it is moving with constant velocity, it will keep moving with constant velocity.
Before the crash happened, both the car and the book are going at 30mph, After the crash, the car stopped, and since there was no frictional force on the book, Newton's 1st law demands that the book keeps going at the velocity it has; therefore, the book will continue moving at 30mph after the crash.