83.33km per second.
Speed = distance ÷ time.
Speed = 300 ÷ 3.60000
Speed = 83.33km per second
hope that helps.
Answer:
W/16
Explanation:
The force of gravity, W = mg = GMm/R²
When R increases by a factor of four, W decreases by 4² or 16.
Answer:
Both Thomson and Rutherford used charged particles in their experiments.
Explanation:
Answer: 215.15 N
Explanation:
If we draw a free body diagram of the mass we will have the following:
(1)
(2)
Where is the tension force of the rope, the mass, the acceleration due gravity and is the weight.
On the other hand, we can calculate as follows:
Where and
(3)
Now, we firstly need to find from (2):
(4)
(5)
Substituting (5) in (1):
(6)
Finally:
When heat is added to a substance the molecules vibrate faster. It makes the motion in the object expand and takes up more space.