It’s asking what subatomic particles each could have where one would be negative and they’d have the same mass. Since one is neutral it will have an equal amount of electrons and protons, while the negative one will have more electrons since they are negatively charged. It would be possible for one atom to have 9 protons, 9 electrons, and 1 neutron while the other has 9 protons and 10 electrons. Or you could take out the neutron because electrons don’t really have mass
Answer:
Q = 382.5 Kj
Explanation:
Given data:
Mass of block = 10.00 Kg
Initial temperature = 10.0°C
Final temperature = 95.0°C
Specific heat capacity of iron = 0.45 KJ/Kg.°C
Energy given = ?
Solution:
Formula:
Q = m.c. ΔT
Q = amount of heat absorbed or released
m = mass of given substance
c = specific heat capacity of substance
ΔT = change in temperature
ΔT = 95.0°C - 10.0°C
ΔT = 85.0°C
Q = 10.00 Kg×0.45 KJ/Kg.°C×85.0°C
Q = 382.5 Kj
By definition,
speed = dstance/time.
Note that
1 mile = 1.609 km
Therefore,
1 mile = 1.609 mk
11 minutes = 11/60 h = 0.1833 h
speed = (1.609 km)/(0.1833 h) = 8.78 km/h
Answer: 8.8 km/h (nearest tenth)
Answer:An atom consists of three sub atomic particles which are protons, neutrons, and electrons. Protons have a positive charge, neutrons have no charge, and electrons have a negative charge.
Explanation: because atoms are made up of particles
Answer:
When the motion of the fluid results due to natural means like the buoyancy effect, that is, the elevation of the warmer fluid and the fall of the cooling fluid is termed as natural convection. Boiling water is the everyday illustration of the natural convection, in the process, the passing of the heat takes place from the burner into the pot, and heats the water present at the bottom.
On the other hand, when the fluid is forced to flow in a tube or over the surface by external means like with the help of a fan or a pump is termed as forced convection. The use of a fan on a hot summer day is an everyday illustration of forced convection. An example of effective heat transfer is the sweat produced by our body. Therefore, when one switches off the fan, the air present around the body captivates the water vapor until it gets saturated. It takes place for some time and stops eventually, which makes one feel hotter.
At that time, when the fan is switched back again, the air surrounding the body starts to move again, without completely getting saturated, and thus, evaporation of the sweat takes place that also contains the heat of the body and one feels cooler.
