Answer:
0.255 meters
Explanation:
cause formula to calculate work done against gravity is mgh where m refers mass g refers acceleration due to gravity and h refers height
All the information needed to make potein is coded in Dna by the order of bases
Answer:
It will keep floating on the surface with a part of the body inside the liquid and a part outside it.
Explanation:
The Archimedes principle is the physical principle that states: a body totally or partially submerged in a fluid at rest, experiences an upward vertical thrust equal to the weight of the volume of fluid dislodged by the body. This force 1 is called hydrostatic thrust or Archimedes, and is measured in Newtons (in the SI). The Archimedes principle is formulated as follows:
flotation force = liquid density × force of gravity × volume of liquid dislodged
Therefore in this case when placing a body in water whose weight is equal to the buoyant force, it will float in equilibrium on the surface of the liquid, since the volume of liquid that it displaces is equal to the weight of the body and this force of below upwards it keeps it on the surface with a part of the body inside the liquid and a force part of it. This is because only the volume of the necessary object is submerged to move the liquid corresponding to a buoyant force equal to its own weight.
Answer: 134.23g at 0° (horizontal) and 77.5g at 90° (vertical).
Explanation:
1) Since the mass of <span>155 g is suspended at 210 degrees, you need to find the components of its weight on the orthogonal coordinate system (0° and 90°).
</span>
<span>2) You do that using the trignometric ratios sine and cosine.
</span>
<span>Weight is mass × g.
</span>
<span>Weight of the object = 155g × g
</span>
<span>Angle, α = 210°
</span>
<span>Horizontal component (0°)
</span>
<span>cosα = horizontal / hypotenuse ⇒ horizontal = hypotenuse × cosα
</span>
⇒ horizontal = 155g × g × cos(210°) = - 134.23g × g
Vertical component
sinα = vertical / hypotenuse ⇒ vertical = hypotenuse × sinα
⇒ vertical = 155g × g × sin(210°) = -77.5g × g
3) Conclusion:
Therefore, the masses that must be suspended to balance the forces of the 155g mass are 134.23g at 0° (horizontal) and 77.5g at 90° (vertical).
- 1. The value of m is 3.735
2. The value of n is 7
<h3>What is momentum? </h3>
Momentum is defined as the product of mass and velocity. It is expressed as
Momentum = mass × velocity
<h3>How to determine the value of m and n</h3>
We can obtain the value of m and n by simply obtaining the momentum in scientific notation. This is illustrated below:
- Mass of train = 4.5×10⁵ Kg
- Velocity of train = 8.3×10¹ m/s
- Momentum =?
Momentum = mass × velocity
Momentum = 4.5×10⁵ × 8.3×10¹
Momentum = 3.735×10⁷ Kg⋅m/s
Thus, the value of m and n are: 3.735 and 7
Learn more about momentum:
brainly.com/question/250648
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