Which of the following is a possible explanation for a set of observations or answer to a scientific question?

A. prediction

B. hypothesis

C. variable

D. law

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What is the magnitude of the net force on the block (the moment it is released?

Compound name for rb3n

Estamos solos en el universo

Water has a specific heat of 4.184 J/Kg°C. Wood has a specific heat of 1.760 J/Kg°C. What material needs more energy to raise the temperature 1°C .

An unstable particle is created in the upper atmosphere from a cosmic ray and travels straight down toward the surface of the earth with a speed of 0.99537 c relative to the earth.

To determine waves frequency you must know the what

What is the average speed in miles per hour of the car that traveled a total of 200 miles in 5.5 hours

A solid weighs 277.5 g in air and 212.5 g when totally immersed in the liquid of density 0.9 g / cc. Calculate the density of the solid.

Who first described the double-helix structure of DNA?

Suppose you are holding a basketball while standing still on a skateboard you are and the skateboard have a mass of 50 kg you throw the basketball with a force of 10 N what is your acceleration before and after you throw the ball