Answer:
<em>it</em><em> </em><em>takes</em><em> </em><em>2</em><em>.</em><em>1</em><em>6</em><em> </em><em>hrs</em><em> </em><em>to</em><em> </em><em>fully</em><em> </em><em>charge</em><em> </em><em>the</em><em> </em><em>phone</em>
Explanation:
V = 5v
I = 1A
E = 38.9 Kj = 38900 j
t = ?
E = IVt
t = E/IV
t = 38900 ÷ (1 × 5)
t = 38900 ÷ 5
t = 7780 seconds
t = 7780/3600............( converting time in seconds to hours)
t = 2.16 hrs
Answer
The Little Bee will have a greater force of 12N
<u>Explanation</u>
As we know that Force is equal to the product of mass and acceleration (F=ma)
The Force with which the Big Bee will hit the windshield = (5kg x 2m/s^2)
Force of Big Bee= 10 Newton (N)
The Force with which the Little Bee will hit the windshield = (3kg x 4m/s^2)
Force of Little Bee = 12N
Hence, the little bee will hit the windshield with a greater force.
The old view of the solar system was geocentric, which means that people believed that the Earth is the center of the universe. However, with the discoveries of Galileo, Newton, and Copernicus, evidence was brought forth that the solar system is actually heliocentric, which means that the sun is the center of the universe.
No, momentum is conserved so:
momentum before=momentum after
it is C. 100 kg m/s
Answer:
c. nine times as low.
Explanation:
Sound intensity is defined as the acoustic power transferred by a sound wave per unit of normal area to the direction of propagation:
Since the sound wave has a spherical wavefront of radius r, then the area is given by:
Here r is the distance from the source of the sound. Thus sound intensity decreases as:
