A500-watt vacuum cleaner is plugged into a 120-volt outlet and used for 30 minutes. how much current runs through the vacuum? 900,000 amps 60,000 amps 4.2 amps 0.24 amps

4.2amps

Explanation:

The current is 4.2 amp.

(c) is correct option.

Explanation:

Given that,

Power = 500 watt

Voltage = 120 Volt

Time = 30 sec

We need to calculate the current

Using formula of current

Where, I = current

P = power

V = voltage

Put the value into the formula

Hence, The current is 4.2 amp.

the answer is false. this is because for ice to melt, it requires latent heat of melting. latent heat means heat energy required to change phase without any increase in temperatures. therefore, the ice will take energy from the environment to melt hence atmospheric temperatures will reduce.

98.4 m

explanation:

let s = distance up the plane  

then by conservation of energy  

1/2m(18.3)^2 = mg s sin(10)  

(18.3)^2 = 2g s sin(10)  

s = (18.3)^2/2gsin(10)  

= 98.39564526  

= 98.4 m