Answer:
Explanation:
current (I) = 0.12 A
potential difference (v) = 3 volt
now
resistance (R)
= V / I
= 3 / 0.12
= 25 Ω.
hope it will help :)
<span>(a) 39.5 g
(b) 49.53 cm^3
(c) 0.7975 g/cm^3, liquid is an alcohol
(a) This will be the difference between the weight of the iron in air and the weight submerged in fluid. So:
390.0 g - 350.5 g = 39.5 g
(b) The density of iron is 7.874 g/cm^3, so the volume of the iron chunk is
390.0 g / 7.874 g/cm^3 = 49.53 cm^3
(c) The density of the fluid will be the mass of the fluid divided by the volume, so:
39.5 g / 49.53 cm^3 = 0.7975 g/cm^3
Since the density is very dependent upon the temperature and since the temperature wasn't specified, the actual substance can't be completely identified. Although some candidates are:
1. Mixture of Alcohol and water. Density ranges from 0.785 g/cm^3 to 1.000 g/cm^3.
2. Crude oil. Density 0.790 g/cm^3
3. Hydrazine. Density 0.795 g/cm^3
4. Methanol. Density 0.791 g/cm^3
5. Ocimene. Density 0.798 g/cm^3
The most likely candidate is a high concentration of an alcohol of some sort.</span>
Answer: Reflective
Explanation:
Most see natural and artificial light sources to be emitters of light and many also believe that bright and shiny objects like mirrors are also sources of light. An important reason for this is that students' conscious experiences of 'reflection' are associated with mirrors and other shiny smooth surfaces.
Visit in www.technology.com its answer is in page no. 4
Answer:
29010.53917 m
Explanation:
= Density of asteroid = 2 g/cm³
V = Volume
d = Diameter = 10 km
r = Radius =
v = Velocity = 11 km/s
= Heat vaporization of water =
= Change in temperature = 100-20
Mass is given by
The kinetic energy is
Heat is given by
Mass of water is
Volume is
Amount of water is
If it were a cube
The height of the water would be 29010.53917 m