According to the law of conservation of mass, in a chemical reaction, the mass of the reactant will always be different from the mass of the product.

What is the name of the process that is responsible for the formation of elements heavier than hydrogen? A) fusion B) fission C) implosion D) gamma decay

Which of the following is a general characteristic of nonmetals rather than metals? Question 8 options: They're excellent conductors of heat and electricity. They're very malleable and ductile and have great mechanical strength.

Identify at least one way that energy is involved in these situations

Two identical blocks with mass 5.0 kg each are connected to the opposite ends of a compressed spring. The blocks initially slide together on a frictionless surface with velocity 2 m/s to the right. The spring is then released by remote control.

Which chart correctly describes the properties of magnets and electromagnets? A. Property Electromagnet Magnet Permanent magnet X Temporary magnet X X Magnetic field created by aligning domains X Moving electric charge produces magnetic field X B.

Each of the following lists two facts. which pair can be used with newton's version of kepler's third law to determine the mass of the sun? each of the following lists two facts.

Which is the temperature at which a solid changes into a liquid?

What is the formula for velocity?

The 3.00 kg cube in fig. 15-47 has edge lengths d 6.00 cm and is mounted on an axle through its center. a spring (k 1200 n/m con - nects the cube's upper corner to a rigid wall. initially the spring is at its rest length.

A freight train traveling with a velocity of - 4. o m/s begins backing into a train yard. if the train's average acceleration is - 0.27 m/s^2 what is the trains velocity after 17s