The gravitational energy is going up subtracting the energy that was on the ground
Answer: The volume of gas expands because of the decrease in pressure as he tries to exit the water body, therefore he must take necessary precaution.
Explanation:
Using Boyle's law which states that the the pressure of a given mass of an ideal gas is inversely proportional to its volume at a constant temperature
ie P1VI=P2V2
A diver absorbs compressed nitrogen gas when he dives into the water body, As he ascends out of the water body having less pressure, the volume of nitrogen gas which he absorbs will tend to expand following Boyle's Law. Therefore a scuba driver should not rises quickly but slowly to the surface or else the expanding nitrogen gas can cause tiny bubbles in his blood and tissue to form together with joints pains and eventually cause decompression sickness needing medical attention.
Resistance can be calculated by Ohm's law
As per ohm's law we will have
here we will have
voltage = 220 volts
current = 10 A
So by the above formula we will have
So resistance of the bulb is 22 ohm.
<span>Density is a value for
mass, such as kg, divided by a value for volume, such as m3. Density is a
physical property of a substance that represents the mass of that substance per
unit volume. To find the mass of the substance, we need to multiply the volume occupied by the substance.
Mass = Density x Volume
Mass = 7.9 g/cm^3 (5.5 cm)^3
Mass = 43.45 g </span>
<em>The question doesn't show symbols to match, but I'm giving you some common examples to help you out with your own assignment.
</em>
Answer:
<em>List below</em>
Explanation:
<u>Electric Devices
</u>
Electricity is usually converted into a variety of other forms of energy, like mechanical, chemical, nuclear, potential, thermal, among many others.
The devices listed below convert electricity in the mentioned forms of energy
- A speaker converts electric energy into sound energy
- A light bulb glows when it receives current
- A power source (battery, generator) provides energy to a circuit
- An on/off switch starts or stops the flow of current