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Sound waves travel faster in water than in air due to the closer proximity of water molecules, allowing vibrations to be transmitted more quickly. However, light slows down when it passes from air into water because water has a higher optical density than air, reducing the speed of light. This phenomenon is crucial in various optical applications, including lenses and prisms.
Two cards are drawn from a well-shuffled pack of 52 cards. What is the probability that both are aces?
Which is not the function of the Operating System?
Let A be a 3 × 3 matrix such that |A ∣ =4. Then ∣ adj(adj(A)) ∣ equals:
(6400 ÷ 160) × 2 + 5 = 21 + ?²
A rectangular box has dimensions 6 cm, 8 cm, and 10 cm. Find the diagonal of the box.
A bag contains 8 black and 10 white balls. One ball is drawn at random. What is the probability that the ball drawn is white?
A man is standing 30 meters away from the foot of a tree. The angle of elevation from his eyes to the top of the tree is 60 degrees. Find the height of ...
Let vectors a, b, and c be such thata · b = 0, b · c = 0, and c · a = 0.
If |a| = 2, |b| = 3, |c| = 6, then the volume of the parallelepiped f...
A spherical metallic shell with 6 cm external radius weighs 6688 g. What is the thickness of the shell if the density of metal is 10.5 g per cm3