Answer:
a) 8 cents
b) 25.6 cents
c) 2.4 cents
Explanation:
Given:
Cost of electricity = 8 cents/kWh
Total cost = Wattage ×Time × Electricity cost
a) cost of running a lamp of 100 W for 10 h will be
Energy consumed = 100 W ×10 h = 1000 Wh or 1 kWh [1 kW = 1000 W]
Total cost = Energy consumed × electricity cost
⇒Total cost = 1 kWh × 8 cents/kWh = 8 cents
b) cost of running a TV of 400 W for 8 h will be
Energy consumed = 400 W × 8 h = 3200 Wh or 3.2 kWh
Total cost = Energy consumed × electricity cost
⇒Total cost = 3.2 kWh × 8 cents/kWh = 25.6 cents
c) cost of running a microwave of 1200 W for 15 min will be
Energy consumed = 1200 W × = 300 Wh or 0.3 kWh [1h = 60 min]
Total cost = Energy consumed × electricity cost
⇒Total cost = 0.3 kWh × 8 cents/kWh = 2.4 cents
Answer:
Explanation:
Given:
- mass of the oscillator,
- first case of displacement,
- velocity in the first case,
- second case of displacement,
- velocity in the second case,
<u>Now as we know that the total energy in both the cases will remain conserved:</u>
Now the total energy:
When the whole of the spring potential converts into kinetic energy:
Action and reaction forces act on different objects in the interaction. Two equal and opposite forces acting upon the same object don't create a pair(action-reaction). That's why they don't cancel each other out.
To begin, The Big Bang Theory has not been proven, and even so, that would only mean a small fraction to whether human would exist. Evolution is also a hopeless argument that many students are taught in school, spun on the basis of very little evidence. The only option we are left is, " Intelligent Design" or an " omnipotent. " This theory explains that the universe is created by an intelligent cause, not as an indirect process such as natural selection. Why we're here is unclear but, our purpose in life<span>
<span>is decided by us. No one tells what you are going to become and what your destiny is or whether you're going to be nothing in life. You decide everything. If your purpose in life is to be a good Christan or a Jew or to be the best singer, that is your purpose for living, it's your destiny</span></span>
The labeled points which is Letter B in the given Image is the point that the axis of rotation passes through. This problem is an example of rotational dynamics, formerly an object moves in a straight line then the motion is translational but when an object at inactivity lean towards to continue at inactivity and an object in rotation be possible to continue rotating with continuous angular velocity unless bound by a net external torque to act then is rotational. In a rotational motion, the entity is not treated as a constituent part but is treated in translational motion. It points out with the study of torque that outcomes angular accelerations of the object.