Heat is measured in joules and temperature is measured in F degrees or C degrees.
Answer:
Rococo art relates to an artistic style especially of the 18th century characterized by fanciful curved asymmetrical forms and elaborate ornamentation.
Explanation:
yes
Answer: option D
Explanation: let us first define an heat engine.
An heat engine is that device that converts partly heat energy into mechanical energy.
Inside the heat engine is a substance that undergoes compression and expansion, intake and outtake of heat, this is known as a working substance.
For heat engines to work perfectly, the working substance has to take a substantial large amount of heat energy from a source, this source is the hot reservoir, the amount of heat energy given out by this reservoir is Qh and the temperature at this region is Th. The heat from the hot reservoir is accepted by the working substances and sent to a region that will discard it out, this region is known as the cold reservoir and the heat energy at this point is Qc and temperature is Tc.
Judging by the direction of heat flow, heat energy moves from hot reservoir to the cold reservoir for the heat engine to work perfectly fine, hence Qh must be greater than Qc and Th must be greater than Tc.
Hence Qh>Qc and Th>Tc
The brush passes current from a power source into the commutator. Therefore they both must carry electric current, B
The angular acceleration of a pulley is described under the equation,
So things clearing,
b) For point B it is necessary to make a sum of Forces,
In this way,
(1)
For block 2, we have the following relationship,
(2)
So,
(3)
Substituting (1) and (2) in (3)
So,
<em>**Note that</em> 
c) For this point we need to use (1)
using (2)
