Which wave form oscillates both parallel and perpendicular to the direction of the wave motion? transverse waves, longitudinal w
aves, circular waves
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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
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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
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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
1 answer:
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Answer:The mass of an object is 52 kg.
Explanation:
Gravitational force on the object ,F=510 N
Acceleration due to gravity = g =
Mass of the object = m
Force = mass × acceleration
The mass of an object is 52 kg.
Answer:
λ = 1360 m
Explanation:
Given data:
frequency of driving nails is given as 1 stroke per second mean at every 0.25 sec she hit the nails
speed of sound is given as 340 m/s
we know that the wave equation is given as
Speed = frequency × wavelength,
v = f × λ
where,
v = speed in meters/second (m/s)
f = frequency in Hertz (Hz)
substituing value to get wavelength of her driving nails
λ = 1360 m