Which of the following is a remnant of a supernova?

A. neutron star

B. protostar

C. black dwarf

D. red giant

Changing the current changes the "what" of an electromagnet

This is a measure of the average kinetic energy of a substance.

Identify each unit as belonging to si units or us customary units. gallon. mile. meter. pound. kilogram. degrees farenheight. kelvin.

What type of triangle has one set of perpendicular lines

What is the kinetic energy of a 0.50 kg ball traveling at 120 m/s

2. How is temperature related to kinetic energy?

As stream velocity decrease, which factor will likely increase? A) erosion of the stream bank B) deposition of material in the stream C) amount of material carried downstream D) size of the particles carried downstream

What cells in the nervous signals travel through the nervous system

A mechanic pushes a 3.60 ✕ 103-kg car from rest to a speed of v, doing 5,130 j of work in the process. during this time, the car moves 21.0 m. neglecting friction between car and road, find v and the horizontal force exerted on the car.

Anika asks Eva to roll a basketball and then a bowling ball to her. Which requires more force to roll, and why?