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MrRissso [65]
3 years ago
13

A 1,120 kg car is travelling with a speed of 40 m/s. Find its energy.

Physics
1 answer:
serious [3.7K]3 years ago
8 0

Answer:

this vehichle has 896,000 jules of energy

Explanation: KE=1/2mv squared, KE is Kinetic energy. m is mass and v is velocity

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A simple pendulum consisting of a bob of mass m attached to a string of length L swings with a period T. If the pendulum is take
Juli2301 [7.4K]

To solve this problem we will use the definition of the period in a simple pendulum, which warns that it is dependent on its length and gravity as follows:

T =2\pi \sqrt{\frac{L}{g}}

Here,

L = Length

g = Acceleration due to gravity

We can realize that 2 \pi is a constant so it is proportional to the square root of its length over its gravity,

T \propto \sqrt{\frac{L}{g}}

Since the body is in constant free fall, that is, a point where gravity tends to be zero:

g \rightarrow 0 \Rightarrow T \rightarrow \infty

The value of the period will tend to infinity. This indicates that the pendulum will no longer oscillate because both the pendulum and the point to which it is attached are in free fall.

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3 years ago
What is the suitable condition for the superconductivity and high resista (a) Weak phonon-phonon interactions (b) No interaction
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Answer:

(d) A strong electron-phonon interaction

Explanation:

Superconductivity -

The phenomenon of superconductivity is due to the attractive force between electrons from the exchange of the phonons that cause the bound pair of electrons known as cooper pairs .

A strong electron -phonon intercation is suitable condition for superconductivity and high resistance .

4 0
3 years ago
What's is the kinetic energy of a .235-kg baseball thrown at 50.0m/s
san4es73 [151]

Answer:

34.51

Explanation:

k=1/2mv² is the kenetic energy equation to fill is in

k=[1/2(0.235)×50]²

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Generators?
kodGreya [7K]

Answer:

A)take motion and induce a current

Explanation:

i hope it will be helpful

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Melting, freezing, and boiling are _____________ changes. Question 3 options: A. compound
vfiekz [6]
Melting freezing and boiling are molecular changes


3 0
3 years ago
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