Laserrul emite un fascicul de lumina
a)convergent
b)divergent
c)Paralel

Simple machines can a. increase force only b. decrease force only c. increase or decrease force

This punnett square shows the cross between two pants. one parent has round seeds (rr). and the other parent has wrinkled seeds (rr) which best describes their offspring as shown in this cross?

Achlorine atom has 17 protons and 18 neutrons. what is its mass number? what is its atomic number?