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Been on this problem for 2 hours now: Four identical springs support equally the weight of a 1150kg car. If a 91kg driver gets in, the car drops 6.8mm.

When a 3.30-kg object is hung vertically on a certain light spring that obeys Hooke's law, the spring stretches 2.80 cm. If the 3.30-kg object is removed, how far will the spring stretch if a 1.50-kg block is hung on it?

Blue, red, and green light enters a drop of water. Which bends more, and why?

Why are atoms arranged in periods ... ?

Suggest reasons why poaching for subsistence is likely to be less damaging to the biodiversity of an area than poaching for profit

Two water manometers are connected to a tank of air. One leg of the manometer is open to 100kPa pressure (absolute) while the other leg is subjected to 90kPa. Find the difference in deflection between both manometers, Delta h_a - Delta h_b.

Most geologists believe that the dinosaurs became extinct 65 million years ago when a large comet or asteroid struck the earth, throwing up so much dust that the sun was blocked out for a period of many months. A.

If you drop a silver dollar off a building and it hits the ground in 10 seconds, how fast was the coin going just before it hit?

What is the weight of an with a mass of 32kg

The index of refraction of silicate flint glass for red light is 1.620 and for violet light is 1.660. A beam of white light in this glass strikes the glass-air interface at a 25.50∘ angle of incidence and refracts out into the air.