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Jet001 [13]
4 years ago
5

Africa's Farmers Know Best

Physics
1 answer:
anyanavicka [17]4 years ago
6 0
1. no, they have a good method already but new tech could help in terms of laboring.

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Which equation represents the law of conservation of energy in a closed system?
Irina-Kira [14]

Answer:

KE + PE = KE + PE

Explanation:

In a closed system, the mechanical energy of the system is constant.

Mechanical energy is given by the sum of kinetic energy and potential energy; mathematically:

U = KE + PE

where

KE is the kinetic energy

PE is the potential energy

This means that if we consider two situations, one at the beginning and one at the end, the value of U will not change if the system is closed; this means that the sum KE + PE will remain the same, so we can write:

KE + PE = KE + PE

7 0
4 years ago
Read 2 more answers
Find the pressure exerted by a 3000 N crate that has an area of 2m squared
ipn [44]
Pressure = Force/ Area = 3000/2 = 1500 pascal.
8 0
3 years ago
An object experiences an acceleration of 6.8m/s2.As a result,it accelerates from rest to 24m/s.How much distance did it travel d
Hitman42 [59]

The distance covered by the object is 42.4 m

Explanation:

The motion of the object is a uniformly accelerated motion (at constant acceleration), therefore we can use the following suvat equation:

v^2 -u^2 = 2as

where

v is the final velocity

u is the initial velocity

a is the acceleration

s is the distance covered

For the object in this problem, we have:

u = 0 (it starts from rest)

v = 24 m/s (final velocity)

a=6.8 m/s^2

Solving for s, we find the distance travelled by the object:

s=\frac{v^2-u^2}{2a}=\frac{24^2-0}{2(6.8)}=42.4 m

Learn more about accelerated motion:

brainly.com/question/9527152

brainly.com/question/11181826

brainly.com/question/2506873

brainly.com/question/2562700

#LearnwithBrainly

8 0
3 years ago
11. In order for an object moving at 10 m/s to have a kinetic energy of 1800
svetlana [45]

Answer:

20 to 30

Explanation:

20 to 30 is the correct answer

4 0
3 years ago
A wooden walkway and a sandy beach are at the same temperature. the sand feels much hotter because it has a greater _____.
Svetlanka [38]
Specific heat capacity.

As it has a greater specific capacity than wood, it takes more heat energy to increase it's temperature by 1 degree Celsius than that of wood. Hence, though both are at the same temperature, sand contains way more heat than wood.  
6 0
3 years ago
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