Force can be expressed as the time-rate change of momentum
Mathematically, Force = Change in momentum/change in time
Change in momentum = m(10.1-18.9) = -0.2024
Force = -2024/5.4 = -375N(approx)
The significance of the '-' sign is that the direction of force is the opposite that of the direction of our velocities since we assumed them to be positive.
Also this is the force on the ball, the force on the window will be equal and opposite.
When energetic UV rays dissociates molecules of oxygen into seperate atoms. But when they collide into each other it forms OZONE.
Answer:
44
Explanation:
jk you didnt share the video lol
You could talk about how the planets spin around the sun, how the universe has galaxies, and we are in the milky way. Blue shift and red shift,etc?
Answer:
Explanation:
given,
radius of earth = 6378 km
distance separating the center of the earth and moon = 384400 km
we know acceleration due to gravity
hence, the weight of earth compared to the your weight on earths surface is equal to 2 × 10⁻⁴ g.