Answer:
Convection
Explanation:
The method of heat transfer that occurs when particles move through a fluid is called convection.
Conduction is where heat is transferred from one substance to another through direct contact.
Thermal energy is the amount of heat that a substance has.
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Answer:
Assuming the typical saw used to saw boards in home construction and renovation is a circular saw, the diameter of the blade can be estimated as 7-10 inches (17.8-25.4 cm). The linear speed in m/s of a point on the rim of the circular saw blade is then approximately: (π × 25.4 cm) × (2600 rev/min) / (60 s/min) = 28.0 m/s.
Explanation:
Given that,
Number of slits per cm,
The third fringe is obtained at an angle of,
We need to find the wavelength of light used. The grating equation is given by :
, n = 3
So, the wavelength of the light is 400 nm. Hence, this is the required solution.
By elasticity, the most nearly load is D. 12370 N .
We need to know about elasticity to solve this problem. In elasticity, stress can be determined as
σ = e . δ
where σ is stress, e is elastic modulus and δ is the strain
From the question above, we know that:
e = 70 GPa = 70 x 10⁹ Pa
d = 15 mm = 0.015 m
δ = 0.001 mm/mm
Find the stress
σ = e . δ
σ = 70 x 10⁹ . 0.001
σ = 7 x 10⁷ Pa
Find the surface area of the aluminum rod
A = πR²
A = π(0.015/2)²
A = 1.77 x 10¯⁴ m²
Find the load
F / A = σ
F = σ x A
F = 7 x 10⁷ x 1.77 x 10¯⁴
F = 12375 N
Find more on elasticity at: brainly.com/question/7694106
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