Cell phone signals passing through walls is an example of A.) Reflection or scatteringB.) Absorption
C.) Transmission
D.) Emission
Answers
Cause it us measured by how much the wall absorbs and doesn’t let pass through.
Related Questions
an apple in a tree has a gravitational potential energy of 175J and a mass of 0.36g . how high from the ground is the apple
a string is attached to the rear-view mirror of a car. a ball is hanging at the other end of the string. the car is driving around in a circle, at a constant speed. which of the following lists gives all of the forces directly acting on the ball?
If an object is NOT accelerating, then one knows for sure that it is ___.A. at restB. moving with a constant speedC. slowing downD. maintaining a constant velocity
How many cars can fit in a football field?
Answers
23h 56m 4.0906s is closer, but stillnot exact. You'll never see an 'exact'
number written anywhere. Firstbecause it doesn't work out to an exact
decimal of anything, and secondbecause it changes ! The Good Friday
earthquake in Alaska changed it,the Fukushima earthquake changed it,
the Nepal earthquake changed it,and the daily drag of the tides changes
it by something like 0.001second every century.
One thing's for sure: It is definitely not 24 hours.
B. the wavelength
C. the center point
D. the trough point
Answers
Answer:
Option (D)
Explanation:
The transverse wave travels in the form of crests and troughs.
The highest point on the wave is called crest.
The lowest point on the wave is called trough.
The part of the wave that best describes lowest point of a wave is the trough (option D)
How do i determine the correct answer to the question?
To know the correct answer to the question, we shall define each option. This is shown below:
Crest of a wave is simply defined as the highest point or peak of a wave. It is the point on the wave propagation where the displacement is at its highest positive value.
Wavelength of a wave is the distance between two successive crest or trough of a wave propagation.
Center point of a wave is simply refer to the rest or equilibrium point of the wave
Trough of a wave is simply the defined as the lowest point of the wave, where the displacement of the wave is maximum in negative values.
With the above information in mind, we can conclude that the correct answer to the question is trough point (option D)
Learn more about trough of wave:
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Answers
Answer:
8.57 m/s
Explanation:
let's list out available parameters:
Initial velocity, u = 20 m/s
Time = 15 - 1 = 14 s
Distance, s = 200 m
Final velocity = ?
We are assuming a uniformly accelerated motion.
Using one of the equations of motion
m/s
Final answer:
To stop just as the light turns green, the motorist needs to decelerate in a controlled manner. The effective time to cover the distance after seeing the red light is 14 seconds, disregarding the 1 second it takes to react and press the brakes. Therefore, as she reaches the traffic signal when it turns green, her speed is 0 m/s.
Explanation:
This situation can be approached using the concept of kinematics in Physics. To solve it, we need to consider total time and total distance traveled. The motorist is driving towards the traffic light, which is 200m away, and the light stays green for 15 seconds. However, since it takes her 1 second to step on the brakes, effectively, she has 14 seconds to travel to the light.
Since she starts braking the car, she begins to decelerate. While decelerating, time is the only determinant of the distance covered, not the speed. As she reaches the light, the speed would be zero regardless of the initial speed or distance if the deceleration is constant. So, when the light turns green, her speed will be 0 m/s.
Learn more about Deceleration here:
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Answers
Complete option to the question:
A. The asthenosphere is broken up into large continental- and ocean-sized plates.
B. Convection currents within the asthenosphere push magma upward to create new crust.
C. Heat from deep within Earth is thought to keep the asthenosphere malleable.
D. The asthenosphere is the repository for parts of the lithosphere that are dragged downward in subduction zones.
Answer: The correct option is A (The asthenosphere is broken up into large continental- and ocean-sized plates.)
Explanation:
Among the components that makes up the earth crust are the lithosphere and the asthenosphere.
The LITHOSPHERE is the outer layer of the earth structure which consists of the upper part of the mantle and the crust.
The ASTHENOSPHERE is a part of the upper mantle just below the lithosphere that is involved in plate tectonic movement and isostatic adjustments. It is denser and weaker layer of the upper mantle which permits the movement of tectonic plates in the lithosphere.
The asthenosphere is the repository for parts of the lithosphere that are dragged downward in subduction zones.Heat from deep within Earth is thought to keep the asthenosphere malleable. And the convection currents within the asthenosphere push magma upward to create new crust. But it is not broken up into large continental- and ocean-sized plates.
Answers
If you connect 120 volts AC to one side of the 1:10 transformer, you'll
get 12 volts out of the other side if you connected it up the correct way,
or 1200 volts if you connected things up backwards.
Note that it has to be AC. If the input to a transformer is DC, then the
output is always smoke.
Answer:
the answer on edge is 48
Explanation: