Answer:
784N
Explanation:
Yo need to multiply the mass of the person by th Earth's gravity, which we know is 9.8m/s²
80kg*9.8m/s² = 784N
<span>a) 3 bulbs rated 40W for 5 hrs : 3*40*5 = 600 Watt hours
</span><span>b) A heater rated 1500W for 3hrs 3* 1500 = 4500 Watt hours
</span>
<span>c) A fridge rated 400W
Would assume the Fridge would run for 24 hours a day :400*24 = 9600 Watt hours
</span>
Total Watt hours for 1 day :
600 + 4500 + 9600 = 14700 Watt hours
Unit of Electricity is in kWh
14 700 wh = 14700/1000 = 14.7kWh
But 1kWh = Rs.3
14.7 kWh = 3*14.7 = 44.1
Total cost = Rs.44.10
Answer:
a force is represented by a<u> vector </u>the choice of a <u>reference frame</u> is necessary
Explanation:
A geostationary orbit can be achieved only at an altitude very close to 35,786 km (22,236 mi) and directly above the equator. This equates to an orbital velocity of 3.07 km/s (1.91 mi/s) and an orbital period of 1,436 minutes, which equates to almost exactly one sidereal day (23.934461223 hours).