The density (d) of the substance is the quotient obtained when we divide the mass (m) of an object by the volume (v) it occupies. Mathematically,
d = m / v
The density of soap is greater compared to that of the sponge because soap is so much heavier compared to sponge. Sponges are usually made up of porous lightweight materials.
Atomic mass Ca = 40.078 u.m.a
40.078 g --------------- 6.02x10²³ atoms
121 g ------------------- ??
121 x ( 6.02x10²³) / 40.078 =
7.28x10²⁵ / 40.078 = 1.81x10²⁴ atoms
Your wight on the earth is greater because it has more gravitational pull whilebon the moon your weight is lower beacause of less gravitational pull.
Answer:
13,2 %.
Explanation:
Overall yield = 0.55 * 0.24
= 0.132
= 13,2 %.
Answer:
The shortest wavelength of an AM radio signal is 250 m
The longest wavelength of an AM radio signal is 468.75 m
Explanation:
where,
= Frequency of wave =
c = speed of light =
= wavelength
As we can see that frequency and wavelength are inversely proportional to each other. So wave with high frequency will have shorter wavelength and wave with lower frequency will have longer wavelength.
a) The shortest wavelength of an AM radio signal:
b) The longest wavelength of an AM radio signal: