Is chalk a colloid, suspension, element, compound, or a mixture

A thermometer measures the temperature of air and uses units like?

A force of 50 newtons causes a sled to accelerate at a rate of 5 meters per second. What is the mass of the sled. (A) 5 Kilograms (B) 10 kilograms (C) 50 kilograms (D) 1 Kilogram

Why is thermal energy produced not generally usable to do work? 1Because the thermal energy dissipates too quickly and is not concentrated enough to be used 2Because this energy is lost to the universe 3 Because thermal energy is a form of energy

Calculate the net force of a 1500N car traveling straight east at a velocity of 32m/s.

Max is a network technician who just terminated the ends on a new copper cable used between two legacy switches. When he connects the two switches together using the cable, they fail to establish a connection. What is MOST likely the issue?

Why does an object accelerate when falling to earth's surface?

2.5 g of helium at an initial temperature of 300 K interacts thermally with 9.0 g of oxygen at an initial temperature of 620 K.

34. A steam engine operates between 300K and 600K, the maximum possible efficiency of this engine is a. 100% b. 75% c. 50% d. 25%

How many moles of phosphorus trichloride are in 200 grams of the molecule? 62.67 mol 27,466.6 mol 1.46 mol 0.69 mol

A starship passes Earth at 80% of the speed of light and sends a drone ship forward at half the speed of light rela - tive to itself. Show that the drone travels at 93% of the speed of light relative to Earth.