Answer:
in region AB the body was not moving
in region BC the body was moving forward with a increasing velocity therefore accelerating constantly
in region CD the body was moving with a constant velocity hence zero acceleration
in region DE the body was moving backwards decelerating
Contact- Frictional force (Needs to be rubbing against the toy for it to happen)
Non Contact- Probably…? Gravitational force (Doesn’t need to be touching for it to happen)
The energy that would be released if the mass was converted to energy is 9 * 10^-4 J
<h3>What is Einstein equation?</h3>
According to the Einstein equation, mass and energy can be interconverted. This is possible by the use of the equation E = mc^2
Where;
m = mass
c = speed of light
Hence;
E = 1 * 10^-20 Kg * (3 * 10^8 m/s)^2
E = 9 * 10^-4 J
Learn more about Einstein equation:brainly.com/question/10809666
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"Period" and "frequency" of waves and oscillations are simple reciprocals. They're not related to the wavelength or speed.
Period = 1 / frequency
Period = 1 / 23.4 Hz
<em>Period = 0.043 second</em>
The type of eclipse in which one sees the sun in the form of a ring is ANNULAR SOLAR ECLIPSE.
Solar eclipse occurs when the moon casts a shadow on the earth.
There are three basic types of solar eclipse, these are total, partial and annular solar eclipse. The annular solar eclipse occurs when the moon covers the sun's center thereby leaving the sun visible outer edges to form a ring of fire around the moon.<span />