What happens to the mass of an object when it is cooled?
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Related Questions
What is the kinetic energy of a 1.0-kg billiard ball that moves at 5.0 m/s? A. 5.0 J B. 6.5 J C. 10.0 J D. 12.5 J
If a 100-N net force acts on a 50-kg car, what will the accelaration of the car be?
Which of the following is not one of the observed characteristics of our solar system?all planets go in the same circular direction all planets look as though they lie along a flattened circular plane or disk the Sun and planets rotate in the same direction all moons orbit planets in a counterclockwise direction
A man is standing on a weighing machine on a ship which is bobbing up and down with simple harmonic motion of period T=15.0s.Assuming the motion is vertical calculate the amplitude of the ship's motion, if the scale reading of the machine varies between limits of 55.0kg and 65.0kg.
b. medium.
c. vibration.
d. compression.
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The term 'wave' is used to refer to a disturbance that transfers energy from one place to another. Waves move energy, not matter, over distances.
The correct option is A.
In groundwater, a "wave" refers to the movement of water through porous subsurface materials, such as soil or rock. These waves can be influenced by various factors, including hydraulic gradients, geological properties, and recharge rates. Groundwater waves can propagate both vertically and horizontally, affecting the flow and distribution of groundwater in underground aquifers. Understanding these waves is crucial for managing and sustaining groundwater resources, as they impact water availability, quality, and the overall behavior of aquifer systems, influencing vital aspects of groundwater management and environmental conservation.
A disturbance that transfers energy from place to place is called a wave. Waves move energy, not matter, across distances. An easy example to visualize this concept is if you throw a pebble into a pond. The energy created by the pebble's impact causes ripples, or waves, to move out from the point of impact. In this case, the water itself doesn't travel across the pond - only the energy does. The other terms - medium, vibration, and compression, all play roles in the transmission of waves, but they are not the name for the energy transfer itself. A medium is what a wave moves through (like air or water), a vibration is a type of movement that can create waves, and a compression is a part of a certain kind of wave. However, the correct term for the energy transfer you're describing is 'wave'.
Hence The correct option is A.
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Answer: Option (a) is the correct answer:
Explanation:
A wave is defined as the transfer of energy from one place to another and no exchange of matter.
Whereas medium is a substance through which wave or energy can be transported from one point to another.
On the other hand, vibration is the back and froth motion of particles of a substance or matter.
And compression means to bring the particles of a substance together by increasing the pressure.
Thus, we can conclude that a disturbance that transfers energy from place to place is called a wave.
Answers
Answer:
a) 240 m
b) 122 m/s
c) 28 m/s²
Explanation:
Given:
Equation for motion
x = 38t + 14t²
a) average velocity during first 3 seconds
average velocity =
now,
distance, at t = 0 s
x = 38 × 0 + 14 × 0² = 0 m
distance, at t = 3 s
x = 38 × 3 + 14 × 3² = 240 m
therefore,
average velocity = = 80 m/s
b) instantaneous velocity of the proton at t = 3.0 s
Instantaneous velocity, v =
or
Instantaneous velocity, v =
= 122 m/s
c) instantaneous acceleration of the proton at t = 3.0 s
Now,
Acceleration = = 0 + 28 = 28 m/s²
b. ultrasonic vibrations.
c. resonance.
d. the Doppler effect.
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The change in pitch of a train's horn as it passes while you are
standing still can be described by the Doppler effect, but that
doesn't explain it.
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take to swim this distance in hours and
minutes
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Answer:
33 hours or equivalently: 1980 minutes
Explanation:
Use the formula for movement under constant velocity, as the velocity equal the distance traveled divided by the time it took, and solve for the unknown time (t):
which can also be given in minutes as : 33 x 60 = 1980 minutes
Final answer:
The total time taken by the octopus is 16.5 hours to swim 8 1/4 km, which is equivalent to 16 hours and 30 minutes.
Explanation:
Time is a fundamental concept that measures the progression of events and phenomena in the universe. It is a dimension in which events unfold sequentially, from past to present to future. Time is often measured in seconds, minutes, hours, days, and years and is a crucial component of our understanding of the physical world, providing a framework for organizing and comparing the durations of events and processes.
To find the time it takes for the octopus to swim 8 1/4 km, we divide the distance by the speed.
Time = Distance / Speed
= 8 1/4 km / 0.5 km/h = 16.5 hours.
Therefore, the octopus takes 16.5 hours to swim 8 1/4 km.
Since there are 60 minutes in an hour, we can convert the hours to hours and minutes. 16.5 hours is equivalent to 16 hours and 30 minutes.
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