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nexus9112 [7]
3 years ago
9

A stretched rubber band is an example of which type potential energy

Physics
2 answers:
Alenkinab [10]3 years ago
6 0

Answer: elastic potential energy

Explanation:

Kazeer [188]3 years ago
6 0

Answer:

<h3>Elastic potential energy</h3>

Explanation:

A stretched rubber band has the potential to do work or change things. This form of energy is called elastic potential energy.

<h2>❣️✧Jess bregoli ✧❣️</h2>

<h3>#keep learning!!</h3>
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A radioisotope is place near a radiation detector, which registers 80 counts per second. Eight hours later, the detector registe
vesna_86 [32]
The isotopes half life is 2 hours

Since given the following :
time    = 8 hours × 3600s/hr = 28800 seconds
A₀ = 80 Bq as the first registration of detector counts per second
A  = 5   Bq as the registration of detector counts per second eight hours later

Using the formula:
∴ A = A₀ e^-λt    
∴ A/A₀ = e^-λt    
∴ ln (A/A₀) = -λt  
∴ λ = -ln (A/A₀) /t  = ln2 / t_{1/2}
∴ t_{1/2} = -ln2 / ln(A/A₀) (t)
∴ t_{1/2} = -ln2 / ln(5/80) (8 hours) = 2 hours
5 0
3 years ago
How does evaporation happen on a stove<br> (dont mind the subject btw)
Shtirlitz [24]

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Answer: Evaporation happens by heat being transferred to the pot, then the pot transfering the heat to the water, which caused the water to vibrate more, eventually turning it into water vapor, which is how evaporation happens on the stove.

Explanation:

I hope this helped!

<!> Brainliest is appreciated! <!>

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3 0
3 years ago
Read 2 more answers
The drawing shows a model for the motion of the human forearm in throwing a dart. Because of the force M applied by the triceps
Serga [27]

Answer:

464.3 N

Explanation:

Given parameters are:

I = 0.065 kg*m^2

L = 0.025 m

R = 0.28 m

v_0 = 0 m/s

v_f = 5 m/s

t = 0.1 s

v_f=v_0+at=at

Hence, a=v_f/t

We must connect two torque equations to find the answer.

\tau=LM=I\alpha

Where \alpha =\frac{a}{R} =\frac{v_f}{Rt}

Hence, LM=I\frac{v_f}{Rt}

Thus, M = \frac{Iv_f}{LRt} = \frac{0.065*5}{0.025*0.28*0.1} =464.3 N

5 0
4 years ago
A ball was rolling downhill at 2 m/s. After 5s, it was rolling at 90 m/s. What is its acceleration?
olga55 [171]

Answer:

17.6 m/s²

Explanation:

Given:

v_{f} = 90 m/s (final velocity)

v_{i} = 2 m/s (initial velocity)

Δt = 5s (change in time)

The formula for acceleration is:

a_{avg} = Δv / Δt

We can find Δv by doing

Δv = v_{f} - v_{i}

Replace the values

Δv = 90m/s - 2m/s

Δv= 88m/s

Using the equation from earlier, we can find the acceleration by dividing the average velocity by time.

a_{avg} = Δv / Δt

a_{avg} = \frac{88m/s}{5/s}

acceleration = 17.6 m/s^{2}

4 0
3 years ago
To Which of the following represents the relative order of wavelengths from least
Alex787 [66]

Answer:

A) ultraviolet light ---> violet light ----> red light-----> infrared light

Explanation:

We know that the electromagnetic spectrum with the wavelength from least to greatest is (also refer attachment)

  • gamma ray
  • X- rays
  • Ultra-violet
  • Visible            

                  Violet

                  Indigo

                  Blue

                  Green

                  Yellow

                   Orange

                   Red

  • Infra-red
  • Microwave
  • Radio wave

Hence the relative order of wavelengths from least to greatest in the electromagnetic spectrum is

    A) ultraviolet light ---> violet light ----> red light-----> infrared light

5 0
4 years ago
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