A student is investigating heat transfer. The student places the ends of a curved copper bar into two insulated cups, as
shown below. The copper bar is at 20°C, Cup 1 contains
40°C water and cup 2 contains 20°C water. Each cup
contains the same amount of water.
Part A Describe the direction of heat flow between the cups of water in the first few
minutes of the investigation.
Show your work:

We will use a video to study faraday’s law of electromagnetic induction by analyzing the induction that occurs due a coil of copper wire sliding along an air track that passes through an external magnetic field. specifically, we will: examine some of the main principles behind faraday’s law. apply lenz’s law to determine the direction of the induced emf. take measurements of the induced emf from the voltmeter as the coil passes into and out of the external magnetic field. use the horizontal scale provided to determine the speed of the coil. calculate the magnetic field induced in the coil as it passes into and out of the external magnetic field.

Which of the following describes how a microwave heats food

The brightest star in the night sky in the northern hemisphere is sirius. its distance from earth is estimated to be 8.7 light years. a light year is the distance light travels in one year. light travels at a speed of 3.00 × 108 m/s. calculate the distance from earth to sirius in miles. (1 mi = 5280 ft) g