About how many watts are equivalent to 1 horse power? 7.5 75 750 7500 A kilowatt
ID: 3162844 • Letter: A
Question
About how many watts are equivalent to 1 horse power? 7.5 75 750 7500 A kilowatt is a unit of power work time electrical charge Most energy to and leaves Earth in the form of nuclear energy chemical energy radiant energy kinetic energy The most widely used source of energy today is coal petroleum nuclear moving water Cohesion refers to the attractive forces between the same types of molecules. refers to the attractive forces between unlike molecules. forces are stronger in solids than in liquids. forces are stronger in liquids than in gases.Explanation / Answer
Q-32)
One mechanic or hydraulic horsepower is equal to 745.69 watts (approx equal to 750 W)
Option - III
Q-33)
Kilowatt (kW) is a unit of electric power.
Watt is a SI unit of power. It is defined as one joule of work done per second.
P = W/t
1W = 1J/1s
Kilowatt is numerically equal to 1000 watts . It is used to represent larger values of power.
Power is always represented in watt (W) or kilowatt (kW).
Option - A
Q-34)
Most energy that comes to the earth is in the form of sunlight, and most of the enery that leaves earth is in the form of heat that is radiated away.
By definition, radiant energy is the only form of energy that can travel through space.
Q-35)
In present days, petroleum is the most generally used source of energy. T
he petroleum provides 40% of energy used by U.S natural gas.
Similarly coal provides 23% of energy used by U.S
In present days 95 % of the energy consumed is provided by total four sources . They are
1) Petroleum
2) Coal
3) Moving water
4) Nuclear
Therefore Option-B) Petroleum is answer
Q-36)
In chemistry and physics, "cohesion" refers to the attractive force between molecules of the same type.
Cohesive forces are present for polarized molecules, where one end of the molecule is negatively charged and the other end is positively charged, thereby making a charge dipole
Water is a common example of a cohesive liquid.
Option - A