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alexandr1967 [171]
3 years ago
6

If the total mechanical energy of a swinging pendulum is 75 J,

Physics
1 answer:
Greeley [361]3 years ago
7 0

Answer: h= 1.5 m

Explanation:

Use formula for potential Energy

U=mgh

75= (5.0) (10) h

h= 1.5 m

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Una persona A tiene cierta cantidad de masa y una persona B tiene la mitad de masa de la persona A ¿como es el peso de B respect
musickatia [10]

Answer:

El peso de la persona B es la mitad del peso de la persona A.

Explanation:

El peso de la persona B puede calcularse con la siguiente ecuación:

P_{B} = m_{B}g   (1)

En donde:

m_{B}: es la masa de la persona B

g: es la gravedad

Dado que la persona B tiene la mitad de la masa de la persona A, tenemos:

m_{B} = \frac{m_{A}}{2}  (2)

En donde:

m_{A}: es la masa de la persona A

Al introducir la ecuación (2) en (1) nos queda:

P_{B} = \frac{m_{A}}{2}g   (3)

Sabemos que el peso de la persona A está dado por:

P_{A} = m_{A}g   (4)

Entonces, al introducir la ecuación (4) en (3) tenemos:

P_{B} = \frac{P_{A}}{2}

Por lo tanto, el peso de la persona B es la mitad del peso de la persona A.

Espero que te sea de utilidad!

5 0
3 years ago
In the periodic, the elements are in order based on
Helga [31]

Answer: informative array

Explanation:

"The periodic table of elements arranges all of the known chemical elements in an informative array. Elements are arranged from left to right and top to bottom in order of increasing atomic number. Order generally coincides with increasing atomic mass. The rows are called periods."

https://www.livescience.com/25300-periodic-table.html

5 0
4 years ago
In a certain state, electricity is generated by using Earth's heat. Wells are drilled and natural steam is taken out through pip
MArishka [77]

Answer:

Geothermal energy is used. Dry system plants are set up for harnessing this energy.

Explanation:

3 0
3 years ago
If an object floats, the volume of the displaced water is equal to the volume of the portion of the object that's above the surf
diamong [38]

Answer:

FALSE

Explanation:

When object float in water then it means that weight of the object is counterbalanced by the buoyancy force.

Here as we know that buoyancy force is the weight of water displaced by the object.

So here when object is submerged into the water then the submerged part of the volume of object will displace exactly the same volume of water and that volume of water will exert upwards buoyancy force on the object.

So here this statement is not true as it says that volume of water displaced is volume above the surface of water while it must be like volume of water displaced must be equal to volume of submerged part of the object.

4 0
3 years ago
Read 2 more answers
Help!!!!!!!!!!!!!!!!!!
GREYUIT [131]
I think wind is anther answer
5 0
3 years ago
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