The interaction is in the stratosphere.
Answer:
2.124 kg of water
Explanation:
height of the falls is about 48 meters.
Mass of water needed is 1kg = 1000g
Power needed is 106 watts.
The amount of energy in 106 watts in one sec is 106 joules.
To calculate the energy of the 1kg falling water = Mgh
Energy = 1000*9.81*48
Energy = 470880 joules.
1 megawatt is = 1000000watts
The kilogram of water needed is 1000000/470880 = 2.124 kg of water
Answer:
(a) Current flowing through truck battery is 180 A
(b) Time taken in calculator is 333.33 s
Explanation:
(a) Given:
The charge on the truck battery,q = 720 C
Time, t = 4.00 s
Consider I be the current flowing through truck battery.
The relation between current, charge and time is:
I = q/t
Substitute the suitable values in the above equation.
I = 180 A
(b) Given:
The charge on the calculator,q = 7.00 C
The current flowing through calculator, I = 0.3 mA = 0.3 x 10⁻³ A
Consider t be the time.
The relation between current, charge and time is:
t = q/I
Substitute the suitable values in the above equation.
I = 333.33 s
Answer:
Gravity is an example of the force of attraction between two objects that have mass.
Calorimeter is an instrument which is used for measurement of heat liberation or absorption from a system during the flow of energy.
Answer: Option A
<u>Explanation:</u>
When the heat is liberated from the system, during the flow of energy it undergoes a exothermic reaction. Similarly, when the heat is absorbed by the system during the flow of energy, the system undergoes an endothermic reaction.
The calorimeter as the name suggest is the meter to calibrate calorie. Calorie here refers to the heat energy, which is being calibrated or measured during the flow of energy, either liberated from the system or being absorbed by the system.
