An Object Of Mass M Is Dropped From Height H Above A Planet Of Mass M And Radius R. An object of mass m is dropped from height h above a planet of mass M and radius R. Find an expression for the object’s speed as it hits the ground. Answer Mass of object = … Read more
How to find net force? When students are studying motion and acceleration, one of the concepts they will likely come across is the net force. The net force is the sum of all the forces acting on an object. In order to find a net force, students need to be able to identify all the … Read more
What is the Molar Mass of HF? The molar mass of HF is around 20 grams per mole, or 20.006 grams per mole, to be specific. Molar Mass of Molecules A molecule is incredibly tiny, and so a different method is needed to measure the mass of a molecule than the mass of larger substances. … Read more
How Many Electrons Does Carbon Have? There are 6 electrons in carbon. Counting Electrons in Atoms All atoms are composed of subatomic particles and include protons, neutrons, and electrons. Protons are positively charged, neutrons carry no overall charge, and electrons are negatively charged particles. In order for atoms to be overall neutral in charge, they … Read more
What Are The Units For The Spring Constant k? The units for the spring constant, k, are Newtons per meter (N/m). Hooke’s law equation states that F = kx, where F is the force required to compress the material, measured in Newtons (N), k is the spring constant, and x is the compression distance measured in meters (m). Since the force is … Read more
What Is The Molar Mass Of Hydrogen Gas? The molar mass of hydrogen gas is 2.016 grams per mole. Moles and Molar Mass A molar mass is the mass of 6.022 X 1023 atoms or molecules, depending on the basic unit being measured. This number produces a quantity of a substance in which the mass in … Read more
On which of the following does the moment of inertia of an object depend? Check all that apply. a. linear speed b. linear acceleration c. angular speed d. angular acceleration e. total mass f. shape and density of the object g. location of the axis of rotation The moment of inertia of a body depends … Read more
From which end (north or south) of a bar magnet do magnetic field lines emerge? Do the field lines really start at the pole face? Do magnetic field lines ever start or end anywhere? Magnetic field lines are representative points of the behavior of a magnetic field through space. Magnetic Fields Magnetic fields are mathematical … Read more
All atoms of the same element have the same number of _____ in their nucleus. (a) neutrons (b) electrons (c) protons (d) neutrons and protons (e) protons, neutrons, and electrons. All atoms of the same element have the same number of protons in their nucleus. Subatomic Particles An atom is composed up of three types of … Read more
How many Jupiters can fit in the sun? According to multiple studies, around 1,000 Jupiters could fit into the Sun. The Football Field and Our Solar System Have you ever heard that the Solar System is compared to a football field? When you look at the size of the Sun compared to Jupiter on the … Read more