A protostar forms once the nebular cloud condenses and the core begins

What is the result of unbalanced forces acting on an object?

An aerobatic airplane pilot experiences weightlessness as she passes over the top of a loop-the-loop maneuver. The acceleration of gravity is 9.8 m/s 2 . If her speed is 320 m/s at this time, find the radius of the loop. Answer in units of km.

Which of the following is a chemical change? a. ice melting b. ice being carved c. water boiling d. water breaking down into hydrogen and oxygen

A 3.5 kg book is sliding on a desk. The coefficient of kinetic friction between surfaces is 0.2. What is the size of the force of friction?

After striking both mirrors, at what angle relative to the incoming ray does the outgoing ray emerge?

Choose the option that best answers the question. The hypotenuse of a right triangle is 16 ft longer than the length of the shorter leg. If the area of this triangle is exactly 120 ft2, what is the length of the hypotenuse in feet?

A car accelerates from rest to a velocity of 5 meters/second in 4 seconds. What is its average acceleration over this period of time?

How is the solubility of a solid affected by temperature? How is the solubility of a solid affected by temperature? A) As temperature goes up, the solubility goes up. B) As temperature goes down, the solubility goes down.

What simple machines would you find in a kitchen?

What is static electricity and how does it differ from current electricity