This one is a piece 'o cake if you know the formula for
Kinetic Energy, and impossible if you don't.
It is: KE = (1/2) (mass) (speed²) .
For this object: KE = (1/2) (30 kg) (20 m/s)²
= (1/2) (30 kg) (400 m²/s²)
= (15 x 400) (kg-m²/s²)
= 6,000 joules .
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</h3>
<u>Here Given,</u>
Mass = 100 gram
Change in temperature = -45°C - 15°C => -55°C
Specific heat of glass (c) = 0.800J/g°C
★Heat Energy (Q) = mc∆t
➙ 100g × (-55)°C × 800/1000 J/g°C
➙ 10 × (-55) × 8
➙ -4400 J
★ Hence, Heat Energy is required to cause this change -4400 J = <u>4400J</u>
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No. The object is said to be in 'free fall' when the
only force acting on it is gravity, not air resistance.
<span>The full wave rectifier is a circuit that converts an ac voltage into a pulsating dc voltage </span><span>by using every half-cycle of the input voltage.
Including a full-wave rectifier in an AC circuit will yield a </span>continuous direct current.
A full wave rectifier consists of two diodes, one for each half of the wave and a multiple winding transformer.