<h2>
a) Volume of anchor is 0.019 m³</h2><h2>
b) Weight of anchor in air is 1463.17 N</h2>
Explanation:
a) Weight loss in water = Volume of object x density of water x acceleration due to gravity
183 = Volume of anchor x 1000 x 9.81
Volume of anchor = 0.019 m³
b) Weight = Mass x acceleration due to gravity = Volume x Density x acceleration due to gravity
Weight of anchor in air = Volume of anchor x Density of anchor x acceleration due to gravity
Weight of anchor in air = 0.019 x 7850 x 9.81 = 1463.17 N
Weight of anchor in air = 1463.17 N
D: light waves in a vacuum
Light and sound both move in waves, one is detected by your ears, one is detected by your eyes. However, light travels faster in a vacuum because light bounces off of matter and energy AKA air, water, earth, plasma, basically anything.
Sound on the other hand cannot travel In a vacuum and moves it's fastest through a solid, slower through a liquid, and it's slowest through air.
Because light travels sooo much faster than sound, answer D is the correct answer!
I hope this helped!
Answer:
h = 44.5 m
Explanation:
Given that,
Power of the engine, P = 5 hP = 3728.5 W
Weight of the load, W = 2000 lb = 8900 kg
We need to find how high the load be raised in 10 s.
We know that,
Power,
Where
W is work done
Also,
1 Pound = 4.45 newtons earth (N)
So, the height raised by the load is 44.5 m.
She hung up the pieces of cotton BEFORE putting the fan on, also the water evaporating can take longer or shorter even if they are all the same :))