A 2.0 kg hanging mass stretches a coiled spring by 0.15 m. The spring constant, k, is: (A) 0.075 N/m, (B) 2.9 N/m (C) 131 N/m, (D) 1,742 N/m, (E) none of the above.

Why is the formation of sand a physical change

What is the final velocity of the 12 kg rock?

I need this like right now! Which of the following indicates that an exothermic reaction has occurred? Temperature increases Heat is absorbed Salt is produced Water is formed

Which statement is true about the atomic mass? a. it is never greater than the atomic number b. it always equal the atomic number c. it always lowers the atomic number d. it can be greater than the atomic number

One Newton is expressed in O A. kg*m/s. O B. kgm/s2 O c. m/s2 O D. kg/m

A cannon fired horizontally at 20 m/s from the top of a cliff lands 80m away. how tall is the cliff

Who is galileo galilei

an athlete whirls a 7.00 kg hammer tied to the end of a 1.3 m chain in a horizontal circle the hammer moves at the rate of 1.0 rev/s what is the centripetal acceleration of the hammer

Relaying a message from a membrane receptor to a molecule that performs a specific function within a cell occurs when

Ultrasound consists of sound at frequencies most people can hear?