Diferencie energia cinética de energia potencial gravitacional.

Physics

1 answer:

Vikentia [17]3 years ago

4 0

Answer:

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The atoms and molecules in it are in constant motion. The kinetic energy of such a body is the measure of its temperature. Potential energy is classified depending on the applicable restoring force. Gravitational potential energy – potential energy of an object which is associated with gravitational force

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a child stands with each foot on a different scale. The left scale reads 200N and the right scale reads 150N. what is her mass i

vitfil [10]

Answer:

35.7 kg

Explanation:

We are given that

Left scale reads =200N

Right scale reads=150 N

We have to find the mass in kg.

We know that

Weight of child= Sum of two scales=200+150=350 N

Acceleration due to gravity= $9.8 m/s^2$

We know that

Weight= mg

Using the formula

$350=9.8 m$

$m=\frac{350}{9.8}=35.7 kg$

Hence, the mass of child=35.7 kg

4 0

2 years ago

identical springs are placed side-by-side (in parallel), and connected to a large massive block. The stiffness of the 43-spring

allsm [11]

Answer:

The stiffness of one of the individual spring is 390 N/m.

Explanation:

It is given that 43 identical springs are placed side-by-side and connected to a large massive block.

The stiffness of the 43 spring combination is 16770 N/m

We need to find the stiffness of one of the individual springs. Let k is the stiffness of one spring. The effective spring stiffness of this width spring is given by :

$K=N\times k$