Answer:
When an object vibrates, it causes the molecules in the air around it to move. These molecules collide with nearby molecules, forcing them to vibrate as well. As a result, they collide with more surrounding air molecules.
Explanation:
For this question, you must divide 48 million by two hundred thousand to get your answer. The quotient of these number is 240, which if reduced to days, is exactly ten days.
Answer:
0.0198 dollars
Explanation:
We first obtain the total energy drawn by the light bulb in kilowatt-hour (kW-hr) using the following relationship;
Energy = power rating x time
Given;
power rating = 60W,
time = 3hrs
Therefore,
Energy consumed = 60W x 3hr
Energy consumed = 180W-hr = 0.18kW-hr
We then multiply this energy in kW-hr by he amount charged per unit kW-hr as follows;
Given that 1kW-hr= 0.11 dollars
0.18kW-hr = 0.18 x 0.11
= 0.0198 dollars
Answer:
a. 5A
b. 39.60%
Explanation:
The computation is shown below:
a. The current does it draw is
= v ÷ R
= 110v ÷ 22
= 5A
b. Now the efficiency of the motor is
n = mgh ÷ vlt
= (10,000 × 9.8 × 8) ÷ (5 × 3600 × 110)
= 784000 J ÷ 1,980,000
= 39.60%
hence, the above formulas are applied & the same is relevant
Answer:
Time period of second satellite will be 50.904 hour
Explanation:
We have given time period of first satellite 
Orbital radius of first satellite 
Orbital radius of second satellite 
We have to find the time period of second satellite.
Time period of satellite is equal to 
From the relation we can see that 
Time period of second satellite will be 50.904 hour
