I got this correct on Odyssey-ware the answer is Kilocalorie
Answer:
Scenario 1 will cause the sound of the drumstick hitting the metal bar to reach your ears in the least amount of time.
Explanation:
The sound wave will travel faster in the metal bar than through the air because the speed of sound waves in solids is faster than it is in gases.
Answer:
Scenario 1 will cause the sound of the drumstick hitting the metal bar to reach your ears in the least amount of time.
Explanation:
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Answer:
Explanation:
Given
Overall magnification
One lens magnification is
suppose the magnification of other lens is
A compound lens is made up of series of lenses either of same or of different magnification so
is given by
If lens is replaced by lens then total magnification is
The second lens has a magnification of 6x. If the 5x lens is replaced by a 7x lens, the new total magnification would be 42x.
To find the magnification of the second lens, we need to know that the overall magnification of a system is the product of the individual magnifications of its elements. If the overall magnification is 30x and one lens magnifies 5x, the magnification of the other lens can be calculated by dividing 30x by 5x, giving us a magnification of 6x for the other lens.
If the 5x lens is replaced by a 7x lens, we can calculate the new overall magnification by multiplying the magnification of the two lenses together. So, 6x (from the other unchanged lens) multiplied by 7x gives us an overall magnification of 42x.
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B) The momentum before the collision is greater than the momentum after the collision.
C) The momentum before the collision is less than the momentum after the collision.
The car A has a mass of 1200 kg.
The car B has the mass of 1900 kg.
It is given that velocity of car A is given as 22 Km/hr
The car B has the velocity of 25 Km/hr.
Let the mass of two bodies are denoted as
Let the velocity of cars A and B are denoted as
The momentum before collision is-
[Here p stand for momentum.]
We are asked to calculate the final momentum of the system after collision.
The answer of the question is based law of conservation of linear momentum.
As per law of conservation of linear momentum the sum total linear momentum for an isolated system is always constant.Hence irrespective of the type of collision[elastic and inelastic],the momentum of the system is always constant which is a universal truth.
Let after the collision the velocity of A and B are
Hence the final momentum of the system is-
As per the law of conservation of linear momentum, the initial and final momentum must be equal i.e
Hence the option A is right.
Explanation:
Flour typically sticks to surfaces due to adhesive forces, and it's more likely to stick to areas with moisture or oils on the skin. If the scar on the man's chest lacks moisture or oils (which is common for scars), the flour may have difficulty adhering to that specific area. However, it could stick to the surrounding skin where there might be more moisture or natural oils.