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siniylev [52]
3 years ago
8

Patty climbs a tree. While sitting on a branch, she drops a leaf and an acorn at the same time. What would happen?

Physics
1 answer:
Paul [167]3 years ago
5 0

Answer:

Patty climbs a tree. While sitting on a branch, she drops a leaf and an acorn at the sametime. What would happen? __The leaf would fall slower than the acorn due to air resistance, butif no air was there, they would fall at the same time.

Explanation:

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The alarm at a fire station rings and a 87.5-kg fireman, starting from rest, slides down a pole to the floor below (a distance o
blsea [12.9K]

Answer:

F_f=840N

Explanation:

From the question we are told that

Weight of fireman W_f= 87.5kg

Pole distance D=4.10m

Final speed is V_f 1.75m/s

Generally the equation for velocity is mathematically represented as

v^2 = v_0^2 + 2 a d

Therefore Acceleration a

a'= v^2 / 2 d

a'= 0.21m/s^2

Generally the equation for Frictional force F_f is mathematically given as

F_f=m*a

F_f=m*(g-0.21)

F_f=87.5*(9.81-0.21)

Therefore

F_f=840N

6 0
3 years ago
Two blocks connected by a rope of negligible mass are being dragged by a horizontal force (see figure below). Suppose F = 65.0 N
vovangra [49]
Refer to the diagram shown below.

g = 9.8 m/s², and air resistance is ignored.

For mass m₁:
The normal reaction is m₁g.
The resisting force is R₁ = μm₁g.

For mass m₂:
The normal reaction is m₂g.
The resisting force is R₂ = μm₂g.

Let a =  the acceleration of the system.
Then
(m₁ + m₂)a = F - (R₁ + R₂)
(14+26 kg)*(a m/s²) = (65 N) - 0.098*(9.8 m/s²)*(14+26 kg)
40a = 65 - 38.416 = 26.584
a = 0.6646 m/s²

Answer:  0.665 m/s²  (nearest thousandth)

7 0
3 years ago
How does changing the speed of a fluid affect its pressure
Vlada [557]
As the speed increases and the pressure decreases
3 0
3 years ago
A light has a wavelength of 5.06x10-7m. what is the frequency of the light?
Artyom0805 [142]

So, the frequency of that light approximately \sf{\bold{5.93 \times 10^{14} \: Hz}}

<h3>Introduction</h3>

Hi ! Here I will help you to discuss the relationship between frequency and wavelength, with the velocity constant of electromagnetic waves in a vacuum. We all know that regardless of the type of electromagnetic wave, it will have the same velocity as the speed of light (light is part of electromagnetic wave too), which is 300,000 km/s or \sf{3 \times 10^8} m/s. As a result of this constant property, <u>the shorter the wavelength, the greater the value of the electromagnetic wave frequency</u>. This relationship can also be expressed in this equation:

\boxed{\sf{\bold{c = \lambda \times f}}}

With the following condition :

  • c = the constant of the speed of light in a vacuum ≈ \sf{3 \times 10^{8} \: m/s} m/s
  • \sf{\lambda} = wavelength (m)
  • f = electromagnetic wave frequency (Hz)

<h3>Problem Solving</h3>

We know that :

  • c = the constant of the speed of light in a vacuum ≈ \sf{3 \times 10^{8} \: m/s} m/s
  • \sf{\lambda} = wavelength = \sf{5.06 \times 10^{-7}} m.

What was asked :

  • f = electromagnetic wave frequency = ... Hz

Step by step :

\sf{c = \lambda \times f}

\sf{3 \times 10^8 = 5.06 \times 10^{-7} \times f}

\sf{f = \frac{3 \times 10^8}{5.06 \times 10^{-7}}}

\sf{f \approx 0.593 \times 10^{8 - (-7)}}

\sf{f \approx 0.593 \times 10^{15}}

\boxed{\sf{f \approx 5.93 \times 10^{14} \: Hz}}

<h3>Conclusion :</h3>

So, the frequency of that light approximately \sf{\bold{5.93 \times 10^{14} \: Hz}}

<h3>See More :</h3>
  • What affects photon energy brainly.com/question/26434060
  • What is the foton energy brainly.com/question/26518899
7 0
2 years ago
What is one of the hardest tasks for researchers ?
bulgar [2K]
To know if their research is correct or matches their hypothesis.
5 0
3 years ago
Read 2 more answers
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