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34kurt
3 years ago
8

A bird has a kinetic energy of 3 J and a potential energy of 25 J. What is the mechanical energy of the bird?

Physics
2 answers:
Ahat [919]3 years ago
8 0

Answer:

28 J

Explanation:

Mechanical energy is the sum of kinetic and potential energy in an object that is used to do work. In other words, it is energy in an object due to its motion or position, or both.

In physics, mechanical energy (Emech) is the energy associated with the motion and position of an object usually in some force field.

Therefore:

ME = KE + PE = 25 + 3 = 28 J

daser333 [38]3 years ago
5 0

Answer:

28j

Explanation:

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Use one of the following formulas to solve distance:
zhuklara [117]

Answer:

72m

Explanation:

Given parameters:

Speed of the Burrito  = 4m/s

Time  = 18s

Unknown:

Distance covered by the flying Burrito = ?

Solution:

Speed is the rate of distance covered per unit of time.

        Speed  = \frac{distance}{time}  

 Distance  = Speed x time

So;

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4 0
3 years ago
Calculate the momentum pelephant of a 2140 kg elephant charging a hunter at a speed of 7.63 m/s . pelephant= kg⋅m/s Compare the
Zepler [3.9K]

Answer:

Momentum of elephant is greater than momentum of tranquilizer dart

Explanation:

m_e = Mass of elephant = 2140 kg

m_d = Mass of tranquilizer dart = 0.0415 kg

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v_e = Velocity of tranquilizer dart = 619 m/s

Momentum of elephant

p_e=m_ev_e\\\Rightarrow p_e=2140\times 7.63\\\Rightarrow p_e=16328.2\ N.s

Momentum of tranquilizer dart

p_d=m_dv_d\\\Rightarrow p_d=0.0415\times 619\\\Rightarrow p_d=25.6885\ N.s

So, p_e>p_d

Momentum of elephant is greater than momentum of tranquilizer dart

7 0
3 years ago
Why do you think that some asteroids tumble end over end through space while other asteroids rotate around their axis?
olga2289 [7]
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I may have gone too in depth. Sorry, lol.
I hope this helped!
7 0
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scoray [572]
The answer is: Mouse/Herbivore.

First organism is always a producer (plant) such as grass.
The 2nd organism is the first level or primary consumer. Ex. Mouse - It eats the producer, so it is a herbivore. 
4 0
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Which describes the relationship between potential and kinetic energy of a ball thrown up in the air as it falls back to the gro
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