Your answer will be A
Hope this helps you out a little
Answer:
Battery.
Explanation:
A battery is a device that stores chemical energy, and converts it to electricity. This is known as electrochemistry and the system that underpins a battery is called an electrochemical cell. A battery can be made up of one or several (like in Volta's original pile) electrochemical cells
Our Sun is one of many stars in the Milky Way galaxy. Earth is closer to the Sun than any other star. This is evident because " we rely on the Sun's radiant energy on Earth".
<u>Option: B</u>
<u>Explanation:</u>
The Sun produces much radiant energy which is distributed as light to the Earth. Plants supports only process called photosynthesis for their food production, transform the electromagnetic energy in sunlight into chemical energy for their food. Radiant electromagnetic waves can be either visible or invisible.
Maximum solar radiation is absorbed by the atmosphere, but much of what hits the surface of the earth is emitted back into the atmosphere for heat energy to result. Dark colored items like asphalt consume radiant energy more easily than objects colored with light.
Answer:
Explanation:
Frictional force acting on the box = mg cos 25 x μ where μ is coefficient of friction
= 2.4 x 9.8 x cos 25 x .51 = 10.87 N
Weight of the box acting along the incline = mg sin 25 = 9.94 N
Net force = 10.87 - 9.94 = .93 N . It will create a deceleration of .93 / 2.4
= .3875 m /s² in the box.
v² = u² - 2 a s
v = 0 , a = .3875 , s = 5.4 m
= = u² - 2 x .3875 x 5.4
u = 2.045 m /s
