The globular star clusters are the most obvious examples of Population II around us
Indicate whether the statement is true or false
TRUE
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Polymer products with a triangular three-arrow recycle symbol with the number 02 in the center are made of
(a) Polyethylene terephthalate (PET) (b) HDPE (c) PVC (d) PP
A child is drinking a liquid with a straw. Which of the following statements is true?
A. Longer straws work better because the pressure is larger deeper down B. The fluid is being pulled up into the straw C. The pressure inside the straw depends on the viscosity of the liquid D. The pressure in the straw is reduced and the liquid is pushed upward by atmospheric pressure on the surface of the liquid
Triton, the largest of Neptune's moons has a retrograde rotation. This means that it revolves about Neptune in the opposite direction to Neptune's direction of rotation about its own axis
The gravitational attraction of Triton causes tides on Neptune, which gradually slow down its rotation about its own axis. What consequences does this have for Triton?
A styrofoam container used as a picnic cooler contains a block of ice at 0°C. If 225 grams of ice melts in 1 hour, how much heat energy per second is passing through the walls of the container? (The heat of fusion of ice is 3.33 × 10^5 J/kg)