Physics

1.2 We pass initially unpolarized light through a polarizing filter that is oriented at 60^circ degrees with respect to the horizontal. If the light had some initial intensity I, what is the intensity after it goes through the filter? (I)/(2) Zero (I)/(4) (3I)/(4) I (5 points)

Part A Predict whether each nuclide is more likely to decay via beta decay or positron emission. Drag the appropriate items to their respective bins. square disappointed square disappointed

COMPREHENSION Instruction: Answer the question from The Allies up to The Arrow pages 1 to 24. What was considered to be the life which is the source of all energy? Select one: a. the bow b. the arrow c. the target d. the allies

From the NOAA links:in which year did solar cycle maximum #23 occur? And what was the observed number of sunspots in this cycle? 2005;100 1995;180 2001;240 2015;210

20. What is the difference between a short circuit and an open circuit?

3 Formula If 75.6 mC of charge flow through a segment of wire in 31.1 ms , then what is the current in the wire? Answer square 1 point

For this discussion, review your readings for Module 6.1. You must complete your post before you can see what other students have posted. In your post include the following: 1. Describe what are the Physics principles "behind" the ultrasound machines used in medical diagnostics? Use full and complete sentences in your answer. 2. Use the values for density and the speed of ultrasound given in College Physics: Chapter 17 Section 7>Table 175. and calculate the acoustic impedance of blood and bones. 3. Compare your results with those provided in Table 17.5. and answer the following question: are your values close to those given? Explain your answer and show your calculations. Use the D2L Math Editor if necessary. 4. Conclude by saying what you learned from this exercise.

Blotchy appearance caused by an insufficient number of photons reaching the image receptor is known as: (Select three) Ambient noise D Quantum noise Quantum mottle Photon starvation

A car moving at 35.2m/s accelerates uniformly to 45.0m/s over 2.25 s. What is the acceleration of the car? a=[?]m/s^2

Which one of the following words is the most appropriate option for fill in the blank: height, depth, distance? Screws are used to move objects to a greater square with less force.