A neutron star is the remaining core of giant stellar explosion, called a supernova. As a result of its formation, all the electrons and protons in a neutron star have been combined into neutrons. A neutron star is, effectively, a gigantic atomic nucleus consisting only of neutrons. Consider a neutron star with a mass that is 2.65 times the mass of the Sun (mSun = 1.99 ✕ 1030 kg). What is its radius (in km)? (Assume we can model it as a nucleus with a radiusr = r0A1/3.)km

Aspecial electronic sensor is embedded in the seat of a car that takes riders around a circular loop-the-loop ride at an amusement park. the sensor measures the magnitude of the normal force that the seat exerts on a rider. the loop-the-loop ride is in the vertical plane and its radius is 23 m. sitting on the seat before the ride starts, a rider is level and stationary, and the electronic sensor reads 740 n. at the top of the loop, the rider is upside down and moving, and the sensor reads 370 n. what is the speed of the rider at the top of the loop?

The particles that are found in the nucleus of an atom are

Which of the following best describes internal energy? a. the difference between the kinetic and potential energies of the particles in a system b. the sum of the kinetic and potential energies of the particles in a system c. the sum of the kinetic and thermal energies of the particles in a system d. the difference between the kinetic and thermal energies of the particles in a system