The temperature of an air parcel and the kinetic energy of an air parcel are ___________ related. this means that as the tempera
1 answer:
You might be interested in
Answer:
a) The flea's speed when it leaves the ground is
b) The flea move upward while it is pushing off
Explanation:
Hi
<u>Knwons</u>
Mass , Work
and Force
a) Here we are going to use , so
a) Here we are going to use , so
or
approx.
Answer:
<u>6 bulbs</u> are needed to illuminate the room.
Explanation:
Given:
Measurement of kitchen (A) = 10 ft by 10 ft = 100 sq. ft
Number of footcandles (n) = 50
Lumens emitted by 1 bulb = 834
Number of bulbs (N) = ?
We are also given,
1 foot candle = 1 lumen/sq. ft
So, 50 foot candles = 50 lumens/sq. ft
Now, for an area of 1 sq. ft 50 lumens are emitted.
So, for an area of 100 sq. ft, lumens emitted = 50 × 100 = 5000 lumens
Now, one bulb emits = 834 lumes
Therefore, number of bulbs required for emitting 5000 lumens is given as:
So, 6 bulbs are needed to illuminate the room.