The effective acceleration or deceleration due to gravity depends on the inclined angle of the track relative to ground; the steeper the slope is the greater the effective acceleration.
Answer:
The solar radiation is first intercepted by Earth's atmosphere, just a small part of the radiation is absorbed by gases such as water vapor. Some of the radiation is reflected back to space by the clouds and Earth's surface.
Answer:
The horizontal component of the force, 
The vertical component of the force, 
Explanation:
Given;
Force on the rope, F = 35 N
angle between the rope and the horizontal = 12 °
The horizontal component of the force is given by;
The vertical component of the force is given by;
Answer:
4 x 10^12 kg Uranium
Explanation:
As we know that 1 gallon = 3.785 L
Amount of Uranium in 1 L sea water = 3 x 10^-6 g
3.535 x 10^20 gallons = 3.535 x 10^20 x 3.785 L = 13.38 x 10^20 L
1 L of sea water contains = 3 x 10^-6 g Uranium
13.38 x 10^20 L of sea water contains = 13.38 x 10^20 x 3 x 10^-6 g Uranium
= 4 x 10^15 g = 4 x 10^12 kg Uranium
