Different forms of the same element are called what

Connelly cuts a solid object in half. What happens to the mass, volume, and density of the object that Connelly cuts? A) The mass and volume are both divided by two, and the density is divided by four.

Why is centrifugal force in a rotating frame called a fictitious force?

Scientific models can be used for a variety of different purposes. Which of the following is not a possible use for a scientific model?. a. study of complex systems. b. study of obsolete systems. c. replace study of the larger system. d.

Why is the gravitational potential energy of an object 1 meter above the moon's surface less then it's potential energy 1 meter above Earth's surface? The object's mass is less on the moon. The object's weight is more on the moon.

When storm clouds produce lightning and thunder, energy changes to energy and energy.

A helium-filled balloon is launched when the temperature at ground level is 27.8°c and the barometer reads 752 mmhg. if the balloon's volume at launch is 9.47 * 10^{4} 4 l, what is the volume in liters at a height of 36 km, where the pressure is 73.

Consider the moment when the spring is at its maximum compression. At that moment, the kinetic energy, the gravitational potential energy, and the elastic potential energy are, respectively, a - zero, at a maximum, and at a maximum b - at a maximum,

Ari, a young patient who is regularly treated by a psychiatrist, feels compelled to carry out repetitive tasks the same way very frequently. If Ari does not conduct these tasks with extreme precision, he can feel extremely nervous and uncomfortable.

A friend says, "Stars produce energy by a fusion chain reaction of helium into hydrogen." Evaluate the validity of this statement. A) It is an valid statement. Stars produce energy by a fusion chain reaction of hydrogen into helium.

If the mass of a material is 42 grams and the volume of the material is 15 cm^3, what would the density of the material be? answer: Unit: