1. all living things are composed of cells
2. cells are the basic units of structure and function for living things
3. all cells come from pre-existing cells. (organisms grow by adding on more cells, not by increasing the sizes of the cell)
Acceleration = (change in speed) / (time for the change)
Change in speed = (speed at the end) - (speed at the beginning)
= (140 km/hr) - (10 km/hr) = 130 km/hr
Time for the change = 50 sec
Acceleration = (130 km/hr) / (50 sec) = 2.6 km/hr per second.
To convert to more familiar units:
(2.6 km/hr-sec) x (1000 m/km) x (1 hr/3600 sec)
= (2.6 x 1000 x 1) / (3600) km-m-hr / hr-sec-km-sec
= 0.722 m/s² (about 0.074 of a G)
O Princípio de Pascal é o princípio físico elaborado pelo físico e matemático francês Blaise Pascal (1623-1662), que estabelece que a alteração de pressão produzida em um fluido em equilíbrio transmite-se integralmente a todos os pontos do fluido e às paredes do seu recipiente.
Answer:
Given:
Mass (m) = 75 kg
Height (h) = 10 m
Acceleration due to gravity (g) = 9.8 m/s²
To Find:
Potential Energy (PE)
Explanation:
The formula for potential energy due to gravity:
Substituting value of m, g & h in the formula:
Answer:
467kg
Explanation:
resultant force=2000-600=1400N
F=mass*acceleration
1400=m*3
m=467kg
Hope this can help you.