Which of the following is used to determine if a star is moving closer to Earth?

If a car travels at 50 km per hour, how far will it go in 2.35 hours? (Show your work. Include the units in you answer.

In mammals, the weight of the heart is approximately 0.5% of the total body weight. Write a linear model that gives the heart weight in terms of the whole body weight. Use the model to fins a. the weight of a human whose weight is 183 lbs.

The speed of sound in air is 344 m/s at room temperature. the lowest frequency of a large organ pipe is 30 s-1 and the highest frequency of a piccolo is 1.5*104s-1. part a find the difference in wavelength between these two sounds.

Multiple Select Which of the following discoveries are attributed to Johannes Kepler? Select all that apply. The orbits of the planets are ellipses. The earth is round. Gravitational forces govern planetary motion.

Two technicians are discussing torque wrenches. Technician A says that a torque wrench is capable of tightening a fastener with more torque than a conventional breaker bar or ratchet.

What is the net force in the x-direction? 30 N 34 N 55 N 65 N

If an object does not have domains, will it be possible to make it magnetic?

If the loop is then converted into a rectangular loop measuring 2.1cm on its shortest side in 6.50ms, and the average emf induced across the loop is 14.7V during this time period, what is A. the strength of the B-field

Why would you expect to see similar rocks and rock structures on two land masses that were connected at one time?

A quantity that is ignorant of direction is referred to as a