When we observe a distant galaxy whose photons have traveled for 10 billion years before reaching earth, we are seeing that galaxy as it was when the universe was?

A cat is moving at 18 m/s when it accelerates at 4 m/s2 for 2 seconds. what is his new velocity?

What is the linear diameter (in meters) of an object that has an angular diameter of 110 arcseconds and a distance of 25,000 m?

Particle physicists use particle track detectors to determine the lifetimeof short-lived particles. A muon has a mean lifetime of 2.2sand makes a track 9.5 cm long before decayinginto an electron and two neutrinos. What was the speed of the muon?

A person jogs eight complete laps around a 400 - m track in a total time of 14.0 min. Calculate the average velocity, in m/s.

Assume the rate of malignant breast cancer tumors is 1%. That means out of 10,000 mammograms, 100 women will have cancer (10,000 x 0.01 = 100) and the remaining 9900 will have benign tumors or nothing in the mammogram.

What kind of motion should you give to a slinky to produce a transverse wave?

what is the work done by a force equivalent to the weight of 100kg that moves an object in 7 minutes?

What does viscosity describe? Question 4 options: A. a fluid's resistance to being heated B. the rate of evaporation of a fluid C. how much energy it takes to warm a fluid D. the density of a fluid E. a fluid's resistance to flowing

What perspective of dream interpretation is being offered? A. Freudian B. activation-synthesis C. Jungian D. motivation Not D

The vapor pressure of diethyl ether (ether) is 463.57 mm Hg at 25°C. How many grams of chlorophyll, C55H72MgN4O5, a nonvolatile, nonelectrolyte (MW = 893.5 g/mol), must be added to 187.4 grams of diethyl ether to reduce the vapor pressure to 457.