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PSYCHO15rus [73]
3 years ago
11

Please help on all i cant figure out

Physics
1 answer:
lapo4ka [179]3 years ago
4 0
Number 2- Liquids
Number 3- Cells
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1. Which of the following equations can be used to directly calculate an object s momentum, p?
Taya2010 [7]

Answer:

p = mv

Explanation:

The momentum of an object is given by the equation:

p=mv

where

m is the mass of the object

v is the velocity

Since velocity is a vector, it follows that momentum is a vector as well, therefore it has a magnitude and a direction (the same as the velocity).

The SI unit of the momentum is kg \cdot m\cdot  s^{-1}

An important law related to the momentum is the law of conservation of momentum, which states that for an isolated system (= zero net external force on it), the total momentum of the system is conserved.

3 0
3 years ago
What type of engine uses a tiller for steering?
kvv77 [185]
The correct answer is <span>outboard. This is the most basic type of engine seen everywhere that is attached to regular boats so that you can move them with an engine instead of by rowing. The engine contains all that it needs in the single box and it just gets attached to the boat.</span>
4 0
3 years ago
If a textbook weighs 37.2 N on Venus, and the book has a mass of 4.4 kg, what is the strength of gravity on Venus?
Romashka [77]

F=ma

Where F is force, m is mass and a is acceleration.

37.2N=4.4kg\cdot a\Longrightarrow a=\dfrac{37.2N}{4.4kg}=\boxed{8.45\dfrac{m}{s^2}}

Hope this helps.

r3t40

4 0
3 years ago
ty sm i got a better score than the first time i had a 25.6 =v= but i got a 85.4 bc your guys helpped ty
mezya [45]

Answer:

Im glad you got a good score, love!

Explanation:

3 0
3 years ago
Read 2 more answers
A sound wave of 70 cm travels 840 m in 2.5 sec. What is the velocity and frequency of sound?
Darya [45]
-- Speed = (distance) / (time to cover the distance) = 840/2.5 = 336 m/s

-- Frequency = (speed) / (wavelength) = 336/0.70 = 480 Hz. 
5 0
3 years ago
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