There is up to 30 times more gold in a tons of old mobile phones than in a tons of gold ore. true or false

Physics

1 answer:

FrozenT [24]2 years ago

3 0

Answer:

true

Explanation:

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You have a meteorite sample and you decide to use the uranium-235/lead-207 system to date it. After analysis, you find that it h

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3 years ago

Read 2 more answers

A 61.0-kg person jumps from rest off a 10.0-m-high tower straight down into the water. Neglect air resistance. She comes to rest

9966 [12]

Answer:

Explanation:

In this case, law of conservation of energy will be implemented. It states that "the energy of the system remains conserved until or unless some external force act on it. Energy of the system may went through the conversion process like kinetic energy into potential and potential into kinetic energy.But their total always remain the same in conserved systems."

Given data:

Height of tower = 10.0 m

Depth of the pool = 3.00 cm

Mass of person = 61.0 kg

Solution:

Initial energy = Final energy

$U_{i} = (K.E) + U_{f}$