Convert: 1km = 1000 m 200000 m * 0.01 s/m = 2000 s or 33 minutes and 20 seconds.
Answer:
Specific heat capacity means that in order to raise copper by 1C per kg, it needs 380J of heat energy.
Answer:
3.51s
Explanation:
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Answer:

Explanation:
We are given that
Mass of glass,

Volume,
Mass of water=
Density of water=
Temperature of hot water,
Specific heat of glass,
Specific heat of water,







Explanation:
The speed of sound wave only depends on the property of the medium like density and the bulk modulus of the medium particle. The speed of sound also depends on the temperature of the medium.
On comparing sound waves with different frequencies and wavelengths traveling through air, the speed of the wave doesn’t depend on the frequency or the wavelength. Hence, the correct option is (1).