Answer:
78.4 J
Explanation:
Given:
Mass of the object (m) = 2.0 kg
Height or displacement of the mass (h) = 4.0 m
Now, change in gravitational potential energy (ΔU) = ?
Change in gravitational potential energy of an object is the energy stored by the object when it is raised to some height above the reference ground level.
Change in gravitational potential energy of an object of mass 'm' raised to a height 'h' above the ground is given as:
Where, 'g' is the acceleration due to gravity and has a value of 9.8 m/s².
Now, plug in all the given values and solve for ΔU. This gives,
Therefore, the change in gravitational potential energy is 78.4 J.
Microwaves at the specific frequency where vibrates water molecules
Or
Infrared waves is the other name for heat
7 billion at the year of 2013
Answer:
a) When moving towards a high pressure center the pressure values increase in the equipment
b) This area is called high prison since the weight of the atmosphere on top is maximum
Explanation:
A) A high atmospheric pressure system is an area where the pressure is increasing the maximum value is close to 107 Kpa, the other side as low pressure can have small values 85.5 kPa.
When moving towards a high pressure center the pressure values increase in the equipment
B) This area is called high prison since the weight of the atmosphere on top is maximum
in general they are areas of good weather