Answer: A cathedral hull allows a boat to
(Get up on a plane quicker)
Explanation:
A boat is a device that is used for water transportation and other purposes. It is made up of various parts which includes:
- The HULL: this is the base( bottom) of a boat with the pointy forward part called the BOW and the flat back part called the STERN.
There are different types of hulls which can be constructed by boat manufacturers and it depends on the use of the boat. They include:
1.)displacement hull,
2.)planing hull,
3.) flat hull,
4.) round hull,
5.)v-shaped hull and
6.) multi-hulled boats.
Cathedral hull is a planing hull that allows a boat to get on a plane quicker. A boat is said to be "on a plane" when more power (and speed) is applied, lift increases, and the boat, in effect, rides over its bow wave, reducing wetted area and thus reducing drag. I hope this helps, thanks.
C. 1.0 mol/kg sodium phosphide (Na3P)<span>
This is because it will produce 4 ions, and thus has the highest molalitiy. (more particles in solution lowers the freezing point)
</span><span>remember if you ever need anything and you dont want to waste points you can just post it on my pfp or message me the question</span>
Answer:
W = 30.38 N
Explanation:
Given that,
Mass of a rock, m = 3.1 kg
We need to find the weight of the rock on the surface of Earth. Weight of an object is given by :
W = mg
g is the acceleration due to gravity, g = 9.8 m/s²
W = 3.1 kg × 9.8 m/s²
= 30.38 N
So, the weight of the rock on the Earth is 30.38 N.
Answer:
The speed of sound, in m/s, through air at this temperature is 343.5 m/s
Explanation:
Given;
distance traveled by sound, d = 1,687.5 meters
time taken for the sound to travel, t = 5 seconds
air temperature, θ = 10°C
Speed of sound = distance traveled by sound / time taken for the sound to travel
Speed of sound = d / t
= 1687.5 m / 5 s
= 337.5 m/s
Speed of sound at the given temperature is calculated as;
c = 337.5 + 0.6θ
c = 337.5 + 0.6 x 10
c = 337.5 + 6
c = 343.5 m/s
Therefore, the speed of sound, in m/s, through air at this temperature is 343.5 m/s
