what is an expression representing a chemical reaction; the formula of the reactants are connected by an arrow with the formulas for the products

A roller coaster needs to climb a tall hill. How tall of a hill can it climb with an initial speed of 15 m. s.

Which step of the scientific method relies more heavily on newly collected data than on creativity and innovation?

Arrange the following in order of increasing radius: O2-, F-, Ne, Rb+, Br - Rb + < F - < Br - < O2 - < Ne Br - < Rb + < Ne < F - < O2 - Ne < F - < O2 - < Rb + < Br - O2 - < F - < Ne < Rb + < Br - O2 - < Br - < F - < Ne < Rb + Br - < F - < O2 - < Ne

According to Ptolemy's model of the movement of celestial bodies, A. the sun is the center of the universe. B. the earth rotates around the moon. C. planets orbit in circular paths around the earth. D. the earth rotates around the sun.

Object A, which has been charged to + 13.5 nC, is at the origin. Object B, which has been charged to - 22.05 nC, is at x=0 and y=1.84 cm. What is the magnitude of the electric force on object A?

Who invented evolution?

A puppy weighing 3 kilograms races through the dog park. if she slows from a speed of 2 meters/second to 1 meter/second, what will happen to her kinetic energy? use the kinetic energy equation. a. her kinetic energy decreases to 1.5 j b.

Which type of material would be best to use for construction in an area prone to earthquakes? concrete brick wood stone

If a car is moving along the highway at a constant speed of 50 m/s, is there an unbalanced force acting on the car? How do you know? Explain using one of Newton's Laws.

If a sprinter has an average acceleration of 9.5 m/s2, how long does it take for the person to go from rest to 10 m/s