Which feature signifies to astronomers that a distant star is part of a planetary system

Which lunar phase preceded the full Moon phase?

The kilowatt-hour is a unit of speed power force momentum energy

What is the momentum of a 20 kg object moving at 100 m/s

a bus starts from rest and attains 40 kilometres per hour velocity after 10 seconds calculate the acceleration of the bus in km - 2 and ms - 2

2) If two locations have the same latitude and are on a coast, what factor determines the air temperature

the half-life of carbon - 14 is 5730 years. What fraction of carbon-14 would remain after 11,460 years?

An object with a mass of 10.9 kg experiences a force of 18.53 N. What is the acceleration of the object? A. 2.2 m/s2 B. 1.7 m/s2 C. 16.83 m/s2 D. 1.3 m/s2

A proton, starting from rest, accelerates through a potential difference of 1.0 kV and then moves into a magnetic field of 0.040 T at a right angle to the field. What is the radius of the proton's resulting orbit

Which of the following terms are needed to completely describe speed? Check all that apply. A. Units B. Direction C. Number D. Mass

Drivers are able to see objects ahead of them because light travels through windshields.