How do we determine the amount of dark matter in elliptical galaxies?

Voltage difference is measured in amperes. Question 1 options: True False

What are the two ways in which weathering can occur

Technician A says that a transmission with electronic shift controls uses a throttle position sensor in place of a throttle valve. Technician B says that a vehicle speed sensor is used in place of a governor. Which technician is correct? A.

A small black spot is present on the metal plate and if the metal plate is heated to red hot and quickly placed in a dark room then the spot will appear white while the plate appears black.

Which of these is a strong basis for Forensic Science, assisting in the fact that if there will most likely be evidence of a crime, it just has to be uncovered?

What contains ribbon-like layers A. Igneous B. Sedimentary C. Metamorphic

When a warm air mass catches up with a cold air mass, forming a warm front, the warm air slides over the top of the cold air, before pushing it away. can be expected as the warm air rises over the cold air and moisture in the warm air condenses?

Why doesn't this aquarium represent a closed system? A. because light, heat, and air can enter and exit B. because it has plastic plants C. because the water is cold D. because there is more than one kind of fishuired.

A 0.500-kilogram cart traveling to the right on a horizontal, frictionless surface at 2.20 meters per second collides head on with a 0.800-kilogram cart moving to the left at 1.10 meters per second.

Which of the following objects is in dynamic equilibrium? A - a man standing in one place without moving B - a bicycle accelerating forward at 1.