Answer:
B
Explanation:
there are three modes of heat transfer which are
- conduction
- convection
- radiation
Conduction is a mode of heat transfer in solid materials
Convection refers to a mode of heat transfer of fluids in motion.
Radiation occurs when heat moves as energy waves in form of infrared radiation. The energy from the sun reaches us by radiation.
From the list of options;
option A refers prevention of heat transfer by radiation
option B refers to noodles rising and falling in a poy of boiling water. The path which the noodles move shows the convective path of the fluid.
option C refers to heat transfer by conduction
Option D refers to oth convection and radiation as modes of heat transfer.
option B best describes heat transfer by convection
Newton first law of motion
<span>Newton's First Law states that an object will remain at rest or in uniform motion in a straight line unless acted upon by an external force</span>
The statement: "<span>A change in the thermal energy of an object is related to the object s specific heat, temperature change, and mass.</span>" is True. An object's total heat capacity is called heat capacity, and it is affected by the amount of thermal energy required to raise the temperature by 1 degree C.
Answer:
Vw = 0.98m/s due 67.16° north of east
Explanation:
The distance the canoeist wants to travel is:
And the angle of the destination point is
With this trajectory and the time of 42s, we get the velocity of the canoe respect to ground:
Now we can calculate the velocity of the water: