How much amount of heat is required to raise the temperature of 20 grams of water from 10°C to 30°C? The specific heat of water is 4.18 J/g°C.

A 2,300-kg truck is traveling down a highway at 32 m/s. What is the kinetic energy of the truck? A. 1,200 J B. 37,000 J C. 1,200,000 J D. 37 J

What are protists and how do scientists describe the Kingdom of organism

Cells that remain as sources of other cells are called

Which chemical is released by brain cells along an activated reward pathway?

O núcleo de um átomo possui 5 prótons e 6 nêutrons. Determine o número atômico (Z) r o. número de massa (A)

A starship passes Earth at 80% of the speed of light and sends a drone ship forward at half the speed of light rela - tive to itself. Show that the drone travels at 93% of the speed of light relative to Earth.

Rubies are used in electronics

Two kids are on a merry-go-round that is turning at a constant rate. ariel is near the outer edge, and bob is closer to the center. ariel has answer (smaller, the same, or greater angular speed?

Visit this website and locate the element mercury, whose chemical symbol is Hg. Click on the square to read about the history, properties, and uses of mercury. Name three uses for mercury.

Ten seconds after starting from rest, a car is moving at 40 m/s. what is the car's acceleration in meters per second per second?