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artcher [175]
3 years ago
7

Hey mates. I need this answered ASAP!

Physics
2 answers:
Dima020 [189]3 years ago
6 0
Destructive interference
ANEK [815]3 years ago
3 0
Your answer is B. destructive interference
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An airplane starts at a stand-still and speeds up with an acceleration of 9.0 m/s2. If the runway is 102 m long, how long will i
Keith_Richards [23]

The plane takes 4.76 s to reach the end of the runway

Explanation:

The motion of the airplane is a uniformly accelerated motion (=at constant acceleration), therefore we can solve the problem by using the following suvat equation:

s=ut+\frac{1}{2}at^2

where

s is the distance covered

u is the initial velocity

t is the time elapsed

a is the acceleration

In this problem, we have:

s = 102 m is the lenght of the runway

u = 0 is the initial velocity of the airplane

a=9.0 m/s^2 is its acceleration

Solving for t, we find the time needed to reach the end of the runway:

t=\sqrt{\frac{2s}{a}}=\sqrt{\frac{2(102)}{9.0}}=4.76 s

Learn more about accelerated motion:

brainly.com/question/9527152

brainly.com/question/11181826

brainly.com/question/2506873

brainly.com/question/2562700

#LearnwithBrainly

7 0
3 years ago
If a car travels at speed 10 m/s with an engine force of 2000 N, calculate the power of the car
STatiana [176]

Answer:

200N

Explanation:

4 0
3 years ago
For every _______ over 50 mph, your chances of being seriously injured, disfigured, or killed are doubled.
user100 [1]

Answer:

10 mph

Explanation:

  • Exceeding speed limit is one of the major causes of road accident.
  • Crash severity increases with the speed of the vehicle at impact.
  • The probability of death, disfigurement, or debilitating injury grows with higher speed at impact.

The above consequences double for every 10 mph over

50 mph that a vehicle travels.

7 0
3 years ago
Read 2 more answers
Batteries are a source of what type of energy
sergiy2304 [10]

Answer:

Chemical energy

Explanation:

Batteries are chemical energy because its a bunch of little reactions causing the batteries to work

3 0
3 years ago
Read 2 more answers
The limit to the eye's acuity is actually related to diffraction by the pupil. What is the angle between two just‑resolvable poi
Alona [7]

Answer: 1.8(10)^{-4} rad

Explanation:

This problem is related to the Rayleigh Criterion, which provides the following formula to find the acuity or limit of resolution of an optic system with circular aperture (the eye in this case):

\theta=1.22\frac{\lambda}{D}

Where:

\theta is the angle of resolution (related to the acuity)

\lambda=554 nm=554(10)^{-9} m is the wavelength of the light

D=3.75 mm=3.75(10)^{-3} m is the diameter of the pupil

Solving:

\theta=1.22 \frac{554(10)^{-9} m}{3.75(10)^{-3} m}

\theta=1.8(10)^{-4} rad

8 0
4 years ago
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