A white dwarf can dramatically increase in brightness only if it

(a) has another star nearby;

(b) can avoid nuclear fusion in its core;

(c) is spinning very rapidly;

(d) is descended from a very massive star.

Kim is cutting lengths of ribbon so that each length of ribbon equals 8 inches. How many centimeters does 8 inches equal

The property of matter that resists changes in motion is called inertia. friction. weight. gravity.

Summarize: Why are wind, hydroelectric, and geothermal energy resources not suitable for providing energy worldwide?

Which force acts as an object to move it from rest or a constant straight-line motion? A. unbalanced B. Along a straight line C. Inertial D. Balanced

A 65 Kg skier starts at rest at the top of a 150 m long hill that has an incline of 28 degrees. How fast will she be going at the bottom of there is 50N of friction?

A water heater is operated by solar power. If the solar collector has an area of 6.39 m2, and the intensity delivered by sunlight is 550 W/m2, how long does it take to increase the temperature of 1.00 m3 of water from 19.4∘C to 72.1 ∘C?

Which of the following factors will negatively impact the rate of diffusion of a molecule? A short distance between two concentrations of the molecule A low difference in the concentration of the molecule across the media A warm environment

A sound wave has a frequency of 1,395 Hertz. All sound waves in air travel at 343 m/s. Find the wavelength of the sound wave. what's the answer?

Which factor will affect the light-gathering power of a telescope? A. change in the focal length B. change in the diameter of the objective C. change in the angle of the objective D. change in the elevation of the telescope E.

What is the acceleration of a 30.0-kg go kart if the thrust of its engine is 300.0 N?