Given:
The battery voltage, V=200 V
The current through the resistor, I=50000 mA=50000×10⁻³ A
To find:
The resistance of the resistor.
Explanation:
From Ohm's law, the voltage across a circuit is directly proportional to the current through the circuit.
Thus the voltage across the resistor is given by,

On substituting the known values in the above equation,

Final answer:
The resistance of the resistor is 4 Ω
This is the path of light through slits.
what are incident light ?
The light that hits a topic is called as incident light. It may originate from an artificial source or from a natural source, like as the sun. Incident light is also light that reflects off a reflector or another surface.
what is light ?
The region of the electromagnetic spectrum that the human eye sees as light, or visible light, is composed of electromagnetic radiation. The Sun is the primary source of natural light on Earth. Fire has historically been a major source of light for people, from ancient campfires to modern kerosene lamps. Electric lighting has largely taken the place of firelight as a result of the development of electric lights and power systems.
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To obtain an acceleration northward is necessary than the west component of the first cable and the east component of the second cable be equal, otherwise the barge will head northwest or northeast.
So for the first cable the component to west is:
Fw = F1 * cos (30Âş) = 80*cos(30Âş)
And for the second cable the component to east is:
Fe = F2 * cos (20Âş) = F2*cos(20Âş)
Then to get a movement northward we need than Fw = Fe, so:
80*cos(30Âş) = F2*cos(20Âş)
F2 = 80*cos(30Âş)/cos(20Âş)
F2 = 73.73 N So the magnitude of the east cable should be 73.73 Newtons
Answer:
The increase in thermal energy results in an increase in pressure.
Explanation:
- The increase in entropy is directly related to the increase in temperature. So the thermal energy in heat engine increases the temperature of that surrounding.
- Higher temperature means the kinetic energy of particles is also higher, their vibration is increasing. So it increases the pressure (ideal gas law).
- In this way the increment in the thermal energy in heat engine moves piston by increasing the pressure.
Answer: Sound waves are a waves of compression and rarefaction, by which sound is propagated in an elastic medium such as air.
Explanation:
In physics, sound is a vibration that propagates as an acoustic wave, through a transmission medium such as a gas, liquid or solid.