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ASHA 777 [7]
3 years ago
10

Which statement best describes longitudinal waves

Physics
1 answer:
Marina CMI [18]3 years ago
3 0
Compression and rarefaction build up longitudinal waves.
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A block with mass m = 5.6 kg is attached to two springs with spring constants kleft = 35 N/m and kright = 52 N/m. The block is p
sergeinik [125]

Answer:

the magnitude of the net force on the block is 18.27 N

Explanation:

given information:

mass, m = 5.6 kg

spring constant kleft, k_{l} = 35 N/m

spring constant kright, k_{r} = 52 N/m

x = 0.21 m

the magnitude of the net force on the block. F

F = - kx

  = - (k_{l}+k_{r}) x

  = - (35+52) (0.21)

  = - 18.27 N

4 0
4 years ago
A 2.80 kg mass is dropped from a
inn [45]

Answer:

PE = 82.32J

Explanation:

PE = m*g*h

PE = 2.80kg*9.8m/s²*3m

PE = 82.32J

7 0
3 years ago
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A runner hopes to complete the 10,000m run in less than 30,0min, after running at constant speed for exactly 27.0 min , there ar
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Well I figured out at his current pace, he would finish the 1100 remaining meters in 200 seconds. However, he needs to complete it in 180 seconds. I'm not sure how to find out how long he has to accelerate at 0.20 m/s/s to complete it in 180 seconds.

3 0
3 years ago
50 Points please Help
Leya [2.2K]

Answer:

Temperature -SI unit :Kelvin

Explanation:

Kelvin is the SI unit of Temperature .

  • Don't get confused and write Celsius as the SI unit .Celsius is not the SI unit .

\\ \sf\longmapsto 1K=273°C

Or

\\ \sf\longmapsto 1°C=273.16K

Lets take an example :-

  • Take 27°C

Lets convert to Kelvin scale

\\ \sf\longmapsto 27°C

\\ \sf\longmapsto 27+273

\\ \sf\longmapsto 300K

  • SI unit of Mass=kilogram(Kg)
  • SI unit of Time=second(s)
  • SI unit of electric current=Ampere(A)
4 0
3 years ago
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A circuit consists of a wire, a lightbulb, a switch, and a battery. What would
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No voltage, no current. The battery provides potential difference(v) to the circuit. In case of no potential difference, theres no current.
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