In air
The speed of sound is slowest in air because sound depends on the medium it goes through and it is made from the vibrations passed on by particles in the medium to the next. In the air, the particles are the most far apart compared to the other two medium.
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260 m
35.8 m
848 m
Answer:
35.8 m
Explanation:
An appropriate formula is ...
The initial velocity is 0, and the acceleration due to gravity is 9.8 m/s², so the distance, d, is ...
Answer:
3N
Explanation:
Note that when an object is immersed in water it weighs less.
This means the weight seen is the apparent weight.
Now in water there is upthrust and is a counter force acting on the object and this force is opposite to the weight of the fluid alongside the container 10N
The apparent weight is the real weight - the upthrust
7N-10 = -3N
The essence of the negative sign is to show that this force is acting in opposite direction to the weight.
Note: the upthrust is 10N and it's opposite to the weight of the fluid and the tube on which the object on the force meter is subjected to.
Answer:
The people on the bus fall forward because Newton's Law of Inertia states that and object in motion with stay in motion or an object at rest will stay at rest unless acted in by another force. The force of the bus stopping suddenly caused the passengers to fall forward because they were at rest position.
B. isotonic environment
C. hypotonic environment
D. flaccid
A molecule that moves across a cell membrane without using the cell's energy tends to move
A. away from the area of equilibrium.
B. away from the area where it is less concentrated.
C. away from the area where it is more concentrated.
D. toward the area where it is more concentrated.
Answer: The correct answer for first question is- B) Isotonic enviroment.
Isotonic environment is created in and outside a cell when the concentration of solute ( like salt) and solvent ( like water) are same on both the sides ( that is inside and outside the cell).
In other words, it represents the same osmolarity.
The correct answer for second question is- C) Away from the area where it is more concentrated.
When a molecule moves across a cell membrane without using energy, it represents passive transport. In this transport, molecules move from an area where their concentration is high to an area of lower concenteration.
Thus, option C) is the right answer.
A snail can move approximately 0.30 meters per minute then it would cover 4.5 meters in 15 minutes.
The total distance covered by any object per unit of time is known as speed. It depends only on the magnitude of the moving object. The unit of speed is a meter/second. The generally considered unit for speed is a meter per second.
As given in the problem a snail can move approximately 0.30 meters per minute and we have to calculate the distance covered in 15 minutes.
speed of the snail = 0.30 meters per minute
time = 15 minutes
distance covered by the snail = speed ×time
distance covered by the snail = 0.30 ×15
distance covered by the snail = 4.5 meters
Thus, the distance covered by the snail in the 15 minutes would be 4.5 meters.
Learn more about speed from here,refer to the link ;
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