Answer:
a)0,14 kg
Explanation:
Formula to calculate the gravitational potential energy:
U= m *g*h : equation (1)
U: It's gravitational potential energy in Joules (J)
m: body mass in kilograms (kg)
g= the acceleration of gravity ()
h= the body heigt measured from the floor (m)
Known information:
U= 116.62 J
g = 9.8
h =85m
mass calculation:
We replace the known information in equation 1 :
116.62 = m*9.8*85
m =116.62/(9.8*85)
m= 0,14 kg
The mass of the ball is 0,14 kg
Answer:
Explanation:
As per work energy theorem we know that work done by all the forces must be equal to change in kinetic energy of the car
So here when brakes are applied then work is done by the brakes which is equal to change in kinetic energy of the car
so we know that work done by the brakes is given as
now we will have
b. solar power
c. geothermal power
d. none of the above
Answer;
C. geothermal power
Explanation;
Geothermal power is considered to be a sustainable, renewable source of energy because the heat extraction is small compared with the Earth's heat content. It depends the least on weather.
Geothermal energy is the heat from the Earth. It's clean and sustainable. Resources of geothermal energy range from the shallow ground to hot water and hot rock found a few miles beneath the Earth's surface, and down even deeper to the extremely high temperatures of molten rock called magma.
b. False
Answer:
A. True
Explanation:
Photosphere, convective zone, radiative zone
Convective zone, chromosphere, corona
Radiative zone, corona, convective zone
The Photosphere, Chromosphere, Transition Region, and Corona are the outer layers. Option A is correct.
Corona, photosphere, chromosphere are the layers of the sun in the correct order from innermost to outermost.
The distance is measured from the sun's core for the inner layers and from the sun's surface for the outer layers. The Core and Convection Zone, are the inner layers.
The Photosphere, Chromosphere, Transition Region, and Corona are the outer layers.
Hence, option A is correct.
To learn more about the layer of sun, refer to the link;
#SPJ2
Answer: The answer is A, Corona, Photosphere, Chromoshpere
Explanation:
Just took the test
Answer: The correct answer is True.
Explanation:
Average kinetic energy of the particles is defined as the average of the kinetic energies of the particles present in a medium. It is the measure of temperature of the medium.
Mathematically,
where,
K = kinetic energy
T = Temperature
As, kinetic energy of the particles is directly proportional to the temperature. Increase in temperature will result in the increase in the kinetic energy and vice-versa.
We are given, that the temperature of the two glasses are same, so the average kinetic energy of the particles will also remain same.
Hence, the correct answer is True.
The statement ‘If two glasses of water are at the same temperature, the average kinetic energy of the particles of water in each glass is the same’ is true. This is because temperature is directly proportional with the kinetic energy of the molecules. If there is no change in temperature, there would not be kinetic movement of the molecules.