In a pig-calling contest, a caller produces a sound with an intensity level of 60 db. how many such callers would be required to reach the pain level of 120 db? 2 incorrect: your answer is incorrect.

When two plates of differing densities collide, how might the density of each plate affect which plate is pulled beneath the other?

A supplier wants to make a profit by buying metal by weight at one altitude and selling it at the same price per pound weight at another altitude. The supplier should a. buy at high altitude and sell at low altitude b.

In order for energy to be conserved, what must happen

A U-shaped tube open to the air at both ends contains some mercury. A quantity of water is carefully poured into the left arm of the Ushaped tube until the vertical height of the water column is 15.0 cm.

A fire truck has a searchlight with a resistance of 60 (ohm) which is placed across a 24-V battery. What is the current in this circuit

7 factors that can affect physical fitness

A force of 100 newtons is applied to a box at an angle of 36º with the horizontal. If the mass of the box is 25 kilograms, what is the horizontal acceleration of the box?

The ATP synthase complex allows ATP production by A. proton-driven rotation of the Fo subunit, which causes F1 to change conformation due to that rotation, allowing ADP to be phosphorylated to ATP. B. substrate-level phosophorylation. C.

How to reverse the heating effects of electric curent

To protect their young in the nest, peregrine falcons will fly into birds of prey (such as ravens) at high speed. in one such episode, a 600 g falcon flying at 20.0 m/s ran into a 1.50 kg raven flying at 9.00 m/s.