Suppose that you measure a galaxy's redshift, and from the redshift you determine that its recession velocity is 30,000 (3*104 kilometers per second. according to hubble's law, approximately how far away is the galaxy?

What do a control group and an experiment group have in common?

J. J. suggests the that an atom subjected to a high voltage becomes charged because it's made of some positive material with small bits of negative material embedded in it, like raisins in a pudding.

AN airplane travels 4000 m in 20s on a heading 0f 35 degrees north west. Calculate average velocity.

while elements and compunds are related, they are different. Unlike elements, compunds can be described as which of the following?

If it makes you happy, then why you so sad

The Burj Khalifa in Dubai is the tallest building in the world at about 828 m. A daredevil climbs to the top of the building and sees the the Boulevard Plaza 2 (141 m tall) about 300 m away.

Suppose the initial position of an object is zero, the starting velocity is 3 m/s and the final velocity was 10 m/s. The object moves with constant acceleration. Which part of a velocity bs.

Identify which type of scientist would use spectroscopy for each purpose. Identification of the composition of the sun and stars: Determination of chemical bonds: Prediction of the efficiency of possible laser materials: Identification of harmful

The distance a wave moves from resting position

Which of the advantages to social media as a new media could also be viewed as a disadvantage