When a high-mass star explodes, which of the following is left over in the center?

A. Black hole

B. Neutron star

C. White Dwarf

D. either a or b

A 1.2-kg block sliding at 5.0 m/s on a frictionless surface runs into and sticks to a spring. The spring is compressed 0.10 m before stopping the block and starting its motion back in the opposite direction. 1.

In which of the following situations would the least work have been done? A. A 100-N force lifts an object 3 m. B. A 250-N force moves an object 1 m. C. A 25-N force moves an object 8 m. D. A 600-N force is applied to an object and moves it 0 m.

A car traveling 90.0 km/h is 1500 m behind a truck traveling at 76.0 km/h. 1) How long will it take the car to catch up with the truck?

What are the results from a stream leaving a mountain range and flowing into a lowland. select all that apply?

Explain the human impact on local lakes and ponds, such as Rough River, Nolin, or Caneyville Watershed. Answer in 6-8 sentences while using ecosystem vocabulary.

Which physical quantities has the unit kg·m·s-1?

Can an object travel at the speed of light? Why or why not?

Determine the amount of potential energy of a 5 Newton's book that is moved to three different shelves on a bookcase. The height of the shelves is 1.0 meter, 1.5 meter, and 2.0 meter

Which atom is involved in giving your heart energy to beat? carbon gold oxygen iron

Which of the following is the most accurate statement concerning the properties of matter? a. they can be written as symbols b. they can be observed and measured c. they cannot be tested or verified d. they change with the amount of matter present