Answer:
Explanation:
When you sit by a campfire, most of the heat you are receiving from the fire does not come from hot air. ... This radiation carries energy which is converted to heat when it hits another object and is absorbed. In contrast, conduction involves the direct movement of heat through an object.
Answer:
Explanation:
The period of oscillation is given as
T=2π√m/k
Making k subject of the formula
Square both sides of the equation
T²=4π²(m/k)
Cross multiply
T²k=4π²m
Then, divide through by T²
k=4π²m/T²
Where
k is spring constant
m is the mass of the bob
And T is the period of the oscillation
m=140g=0.14kg
14 oscillations takes 14 seconds
Then the period is
T=time/oscillation
T=14/14
T=1sec
Then,
k=4π²m/T²
k=4π²×0.14/1²
k=1.76N/m
Then, the spring constant is 1.76N/m
I think it is D sorry it’s wrong
Microscope use to observe microscopic organisms such as bacteria, viruses, and others. The spontaneous observation that microorganisms move and transport through the air which serves as their medium or channel to transfer from one place to another. This microbiology or study with the use of the microscope greatly affects and contributed to the foul air theory on which traces of the sources of disease became the focus of their study. Diseases and properties of microorganisms, as well as, the solution on how to cure and fight these becomes possible with the availability of microscope.
Because it is touching, the heat is being transferred via conduction.