1. Stopping a car
2. Keeps us from slipping
3. Allows us to grip things and not drop them
Answer:
Explanation:
(1) I= 1.5W/240V =6.25mA
(2) Energy= (1.5J/s)×(2×60×60 s)=10.8 KJ
Answer:
1933 Hz
1956 Hz
Explanation:
= Velocity of object
= Velocity of source
v = Velocity of sound
From Doppler effect
The frequency of the sound detected by subB is 1933 Hz
The frequency of the sound detected by subA is 1956 Hz
Answer:
An online UPS.
Explanation:
An online UPS is a type of uninterruptible power supply uses AC power to continuously charge its battery, while also providing power to devices through the battery. It combines the inverter and rectifier to provide power to the alternating current (AC) load while supplying alternating current (AC) power during an outage to the load through the inverter.
Basically, an uninterruptible power supply unit is used to provide constant power supply to an electrical device, especially during a power outage.
Answer:
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