Simple machines are widely used in our daily life. why?
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Ответ:
Simple machines are useful because they reduce effort or extend the ability of people to perform tasks beyond their normal capabilities. Simple machines that are widely used include the wheel and axle, pulley, inclined plane, screw, wedge and lever.
Ответ:
Simple machines are useful because they reduce effort or extend the ability of people to perform tasks beyond their normal capabilities. Simple machines that are widely used include the wheel and axle, pulley, inclined plane, screw, wedge and lever.
Explanation:
funny answer cuz peeps be lazy
Ответ:
C) 58.8 J
Explanation:
Initially, the cart has only potential energy.
PE = mgh
PE = (3.0 kg) (9.8 m/s²) (4.0 m)
PE = 117.6 J
Halfway down the hill, half the potential energy has been converted to kinetic energy.
KE = 117.6 J / 2
KE = 58.8 J