There is a direct relationship between the kinetic energy and the temperature of a certain body which is expressed in the given equation below,
KE = 3kT/2
where KE is kinetic energy, k is proportionality constant, and T is the temperature in kelvin. Thus, increasin the temperature of a body, increases its average kinetic energy. The answer is letter A.
Answer:
An image of the cosmic microwave background radiation, taken by the European Space Agency (ESA)'s Planck satellite in 2013, shows the small variations across the sky (Image credit: ESA/Planck Collaboration) The cosmic microwave background (CMB) is thought to be leftover radiation from the Big Bang, or the time when the universe began
Explanation:
Becuase of the earths gravitational pull you wont feel it because the earth is pulling you already and you arent big enough to feel the pull between the 2
Answer:
<em>The cost per week of electricity is Rm 46.8</em>
Explanation:
<u>Electrical Power and Energy</u>
The electrical power consumed by an appliance connected to a voltage V and carrying a current I is given by:
P = V.I
The energy consumed by an electrical appliance of power P during a time t is:
E = P.t
The electrical equipment in an office takes I=13 A when connected to a V=240 V supply.
The power consumed is:
P = 240 V * 13 A
P = 3,120 Watt
Converting to Kilowatt:
P = 3,120/1,000 KW
P = 3,12 KW
If the equipment is used t=30 hours each week, the energy is:
E = 3.12 KW * 30 h
E = 93.6 KWh
Since the cost of each KWh is Rm 0.50, the weekly cost of electricity is:
C = 93.6 * 0.50 = 46.8
The cost per week of electricity is Rm 46.8