The half-life for a 100-gram sample of radioactive element X is 5 days. How much of element X remains after 10 days have passed?

A. 25 g

B. 100 g

C. 75 g

D. 50 g

An initially unpolarized beam of light, intensity Io, is propagating into the plane of the paper. The light travels through 4 linear polarizers.

1. What is the wave speed of a wave that has a frequency of 50 Hz and a wavelength of 0.20 m? 2. What is the frequency of a wave that has a wave speed of 100 m/s and a wavelength of 0.20 m? 3.

Which statement describes how work and power are similar?

Which of the following actions will decrease the gravitational force between two objects? A. Increasing the mass of the objects B. Increasing the density of the objects C. Increasing the distance between the objects D.

A 1.0 m length of metal wire is connected to a battery, and a current of flows through it. What is the diameter of the wire? The resistivity of the metal is

tessa bought stock in a restaurant for $287.00 her stock is now worth $401.80 what is the percentage increase of the value of Tessa's stock?

Withholding Judgment on the mentally Ill is wise because It saves you from embarrassing yourself often people have disorders that don't affect you then you can try to understand what a person is experiencing all of the above

A 1200 W refrigerator, a 1500 W electric frying pan, and a 200 W lamp are plugged into the same outlet in a 15 A, 220 V circuit. (these devices are in parallel when plugged into the same socket.) What current (in A) is drawn by refrigerator?

1. Calculate the total resistance for a 650 ohm, a 350 ohm, and a 1000 ohm resistor connected in series.

What is the study of motion of objects, and related concepts of force and energy