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Soloha48 [4]
4 years ago
5

Welding, cutting, or heating in any enclosed spaces involving which of the following metals should be performed with local exhau

st ventilation or employees should be provided air line respirators:
Physics
1 answer:
sweet [91]4 years ago
4 0

steal aluminum iron

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Sound travels slower in colder air than it does in warmer air. Make a claim about the effect of air temperature on the speed of
vladimir1956 [14]

Answer: The temperature of the air affects the speed of sound in the due to the fact that colder contains air molecules with low kinetic energy. For warm air the kinetic energy of the molecules is high causing them to move in rapid motion. Because of these vibrations and collisions sound waves moves in a faster rate.

Explanation:

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3 years ago
A long, cylindrical solenoid with 100 turns per centimeter has a radius of 14.7 cm. If the current through the solenoid changes
oee [108]

Answer:

Explanation:

Given:

dI/dt = 6.21 A/s

n = N/l

= 100 turns/cm

= 100 turns/cm × 100 cm/1 m

Radius, r = 14.7 cm

= 0.147 m

Inductance, L = uo × n^2 × A × l

L/l = 4pi × 10^-7 × (100 × 100)^2 × pi × 0.147^2

= 8.53 H

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E/l = L/l × dI/dt

= 8.53 × 6.21

= 52.98 V/m

=

4 0
3 years ago
The sources of marine debris and explain why it is a problem with global origins
Lera25 [3.4K]
Marine debris is any trash or litter that ends up in a marine environment. This harms wildlife through entanglement, ingestion, and disturbs the habitat of many species of animals. This becomes a global problem when it is a danger to human health. Nails, syringes, and glass can cause harm to people on the beach. On top of that, trash in the waterway increases the amount of chemicals destroying our water quality.
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4 0
3 years ago
light of wavelength 587.5 nm illuminates a slit of width 0.75 mm. at what distance from the slit should a screen be placed if th
Liono4ka [1.6K]

1.085m

Explanation:

Using

a= lambda/sinစ

Sinစ= (587.5*10^-9) x 0.75*10^-3

= 0.000783

Sinစ=0.875*10^-3/d

0.000783= 0.875/d

d= 1.085m

6 0
3 years ago
All of the following are benefits of statistics except that it __________. A. increases knowledge B. promotes change C. creates
erastovalidia [21]
C. creates biases
this is the only answer that would be a disadvantage. 
5 0
3 years ago
Read 2 more answers
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