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Temka [501]
3 years ago
5

The talk test can be used to measure the __________. A. knowledge of an activity B. intensity of an activity C. length of an act

ivity D. cost of an activity
Physics
2 answers:
gladu [14]3 years ago
4 0
The answer would be A
Alexxx [7]3 years ago
4 0
I’m certain the answer is a
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A student swings a container of water in a vertical circle of radius 1.0 m. Calculate the minimum speed of the container so that
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Answer:

Explanation:

The centripetal acceleration requirement must equal gravity at the top of the circle

mg = mv²/R

  v = √Rg

  v = √(1.0(9.8))

  v = 3.1304951...

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A physics professor wants to perform a lecture demonstration of Young's double-slit experiment for her class using the 633-nm li
Alexeev081 [22]

Note: if the professor wants the distance between the m = 0 and m = 1 maxima to be 25 cm

Answer:

d = 1.0128×10⁻⁵m

Explanation:

given:

length L = 4.0m

maximum distance between m = 0 and m = 1 , y = 25cm = 0.25m

wavelength λ = 633nm = 633×10⁻⁹m

note:

dsinθ = mλ (constructive interference)

where d is slit seperation, θ is angle of seperation , m is order of interference , and λ is wavelength

for small angle

sinθ ≈ tanθ

d (\frac{y}{L})  = mλ

d (\frac{y}{L}) = (1)(633nm)

d(\frac{0.25}{4} ) = (1)(633nm)

d = 1.0128×10⁻⁵m

6 0
3 years ago
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