Answer:
The boat won't be able to move if the oars were out and there was no thruster. If there was a flow of the water then yes there would be a moving boat.
Answer:
Explanation:
It's a good thing to claim this was speed and not velocity.
Givens
d = 40 meters
t = 5 seconds
V = ??
Formula
v = d/t
Solution
v = 40 m/5 sec
v = 8 m/s
If you really wanted to get picky, you should convert the distance to yards which is how distance is measured in football
1.09 yards = 1 meter
d = 40 * 1.09 = 43.74 yards.
t = 5 seconds
v = 43.74/5 = 8.749 yards / second.
Biodegradable when wood rots
like if you leave types of paper and wood or cardboard over time it will break down and enrich the soil.
same things with a compost.
R=10
F=R/2
F=10/2=5
F=-5(CONCAVE MIRROR)
U=-8(CONCAVE MIRROR)
HEIGHT OF OBJECT=1.5
V=?
HEIGHT OF IMAGE=?
I/F=1/U+1/V
-I/5=-1/8-1/V
-1/V=-1/5+1/8
-1/V=-8+5/40
-1/V=-3/40
1/V=3/40
V=40/3
HEIGHT OF IMAGE/HEIGHT OF OBJECT =-V/U
HEIGHT OF IMAGE=40/3*1/-8*15/10
=-20/8
=-2.5
Answer:
even if it all could be used, it wouldn't be enough
Explanation:
The land area of the US is about 5.45% of the world's area, so the amount of released heat over the area of the US is on the order of 2.4 Tw. Current technology for converting geothermal energy to electricity is about 12% efficient, so the available energy might amount to 0.29 Tw if it could all be captured.
Energy consumption in the US in 2019 was on the order of 0.46 Tw. This suggests that even if <em>all</em> of the thermal energy radiated by the Earth from the US could be turned to useful forms of energy, it would meet only about 60% of the US need for energy.