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Goshia [24]
4 years ago
13

Physical Science Investigating Sound Waves lab PLEASE HELP ME WITH MY LAB!!!!!!!!!

Physics
2 answers:
Fed [463]4 years ago
7 0
What’s the question so that i can help you
ra1l [238]4 years ago
3 0
There needs to be a picture or a question for us to help
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I need help on these 3 questions. <br> I need the original formula used and the givens
Dafna11 [192]

Answer:

sorry mate i dont know

Explanation:

sorry i just need points and i hope you get your answers

7 0
3 years ago
uppose the bottom block has a mass of 0.4 kg and the top block has a mass of 0.1 kg. What force do you need to exert (in newtons
notsponge [240]

Answer:

 F = 0

Explanation:

Newton's second law is

         F = ma

As in this case the two blocks move with constant speed, it implies that the acceleration is zero, therefore the force applied to the system is zero

       F = 0

5 0
3 years ago
The frequency of electromagnetic energy traveling through a medium can change if any of the following change EXCEPT: Select one:
agasfer [191]

Answer:

b. amplitude

Explanation:

An electromagnetic waveconsists of electrical oscillations and magnetic fields. The frequency of the wave is directly proportional to its energy and its speed and inversely proportional to its wavelength. Therefore, with the only magnitude with which it has no relation is with its amplitude.

3 0
3 years ago
An electric circuit through which no current flows is known as?
Afina-wow [57]
The answer is : Open circuit
4 0
4 years ago
Read 2 more answers
A whale swims due east for a distance of 6.9 km, turns around and goes due west for 1.8 km, and finally turns around again and h
Amiraneli [1.4K]

Answer:

Explanation:

a) Total distance traveled by the whale = 6.9 km + 1.8 km + 3.7 km = 12.4 km

b) the magnitude and the direction of the displacement of the whale = 6.9 km due east - 1.8 km due west = 5.1 due east

it final displacement = 5.1 km due east + 3.7 k due east = 8.8 km due east

c) average speed in km / hr = total distance traveled / total time = 12.4 km / 0.5 hr ( 30 min/ 60 min × 1 hr) = 24.8 km / hr

d) average velocity in km / h = total displacement / total time = 8.8 km / 0.5 h = 17.6 km/h

6 0
3 years ago
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