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4vir4ik [10]
3 years ago
8

Which wave form oscillates both parallel and perpendicular to the direction of the wave motion? transverse waves, longitudinal w

aves, circular waves
////////

The period of a mechanical wave is 2 seconds. What is the frequency of the wave?


20 waves/second
5 waves/second
2 waves/second
0.5 waves/second
///////

The object distance for a convex lens is 15.0 cm, and the image distance is 5.0 cm. The height of the object is 9.0 cm. What is the height of the image?


3.0 cm
8.3 cm
27 cm
45 cm

Physics
1 answer:
Solnce55 [7]3 years ago
6 0
Hope this answer helps:)

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Object A has of mass 7.20 kilograms, and object B has a mass of 5.75 kilograms. The two objects move along a straight line towar
Vera_Pavlovna [14]
If the collision is elastic, there is no loss in kinetic energies, which means that the total energies before and after impact are the same.  So no need to worry about final velocities.

Final energy
= initial energy
= (1/2) (7.20*2.00^2+5.75*(-1.30)^2)
=19.26 joules

Answer: the total kinetic energy is 19.3 J. after collision.

8 0
4 years ago
I’ll give brainliest if you can answer the question in the picture and the question below
Vlad1618 [11]

Answer:

the answer would be D if you agree

3 0
3 years ago
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Higher-frequency sound waves are perceived as having _____.
Alona [7]
Higher frequency sound waves are perceived as having  higher pitch
7 0
3 years ago
Please help me with this question
valkas [14]

Answer: m∠P ≈ 46,42°

because using the law of sines in ΔPQR

=> sin 75°/ 4 = sin P/3

so ur friend is wrong due to confusion between edges

+) we have: sin 75°/4 = sin P/3

=> sin P = sin 75°/4 . 3 = (3√6 + 3√2)/16

=> m∠P ≈ 46,42°

Explanation:

4 0
3 years ago
2. A wave on a rope has a wavelength of 2.0 m and a frequency of 2.0 Hz. What is the speed of the
TEA [102]

Answer:

4 m/s or 4 meters per second.

Explanation:

In order to calculate the speed of wave, you multiply the wavelength in meters and the frequency of the Wave in Hertz. 2 times 2 equals 4. The wave speed is always in m/s considering that the wavelength is also in meters.

7 0
4 years ago
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