Choice-D is the correct statement.
Answer:
245.25
Explanation:
Jupiter's gravity is 2.5 times earths
Weight = Mass x Gravity
Weight = 10 x (9.81 x 2.5)
Weight = 245.25 N
Answer:
Wavelength of wave is 2.5 meters
Explanation:
Given that,
Speed of a wave, v = 350 m/s
Frequency of the wave, f = 140 Hz
The formula to find the speed of sound is given by :

The speed of sound is more in higher temperature. At higher temperature, the molecules vibrate with more energy. As a result, sound travel faster in a warm room.