A radioactive compound with mass 240 grams decays at a rate of 30% per hour, Which equation represents how many grams of the compound will remain after 4 hours? Answer C=240(1.3)^4 C=240(1-0.3)(1-0.3) C=240(1+0.3)^4 C=240(0.7)^4

006 (part 1 or 2) 10.0 points A student sits on a rotating stool holding two 1 kg objects. When his arms are extended horizontally, the objects are 0.8 m from the axis of rotation, and he rotates with angular speed of $0.68rad/sec$ . The moment of iner- tia of the student plus the stool is $5kgm^{2}$ and is assumed to be constant. The student

What is the main problem with using a filling like concrete in this model? They did not lift the first ball high enough. Too much energy is being absorbed somehow. There is no problem this trial worked

Multlple Cholce Question Neutrons are found __ around the nucleus of an atom in the nucleus of an atom Need help? Review these concept resource

6. You are making great progress! You have calculated that it takes a sound wave Q.2326 seconds to travel from the speaker to Max. Next, you need to measure the delay between when Emma claps and when Max claps and compare them. You'll use the stopwatch tool on the slow motion video on the left. Measure the time on the stopwatch when Emma claps. Show me how! $\square $ The answer to this question depends on your answers to previous questions. Schrut Answer 0/ me submissions used

Question 3 Now suppose the mass of block A is much less than the mass of block B. Estimate the magnitude of the acceleration of the blocks after release. $0m/s^{\wedge }2$ $9.8m/s^{\wedge }2$ Question 4 Briefly explain your reasoning without deriving or using equations. Edit View Insert Format Tools Table 1 pts 1 pts

The table shows information about four waves. Which wave has the lowest frequency? (1 point) wave O wave L wave N wave M

Note: Displacement often requires you to draw a picture of what is going on in order to understand how to calculateit. You do not need to include that drawing in your work.but it will help you quite a bit to make one Bike Ride PJ likes to ride his bike around the block. If he rides out of his house west, the sidewalk circles his block. and brings him back to his doorstep 0.35 miles later. Find his distance and displacement. Filinthe Blark 1 point Calculate the distance that Plcovers on the bikeride. Enter your answer in the blanks below with the number in the first blark,and the units in the second blark (Evenif distance or displacement areztro you exciting include their it of measure from the question) Total distance covered typeyouranswer typeyouranswer 2 Fill in the Blank 1 point to Calculate the displacement from the starting point after Pl completes the bike ride Enter your answer in the blanks below.with the number in the first blank. and the units in the second blank (Even Idstance or displacement arezero, youmustsell include the unit of measure from the question) Displacement fromstarting point type your answer. typeyouranswer

What, according to the lecture, is one of the fundamental questions in astrophysics? What are stars made of? Why do stars shine? Where do stars come from? How do stars move?

According to the conservation of energy principle mentioned in the video, what cannot happen to energy within a system? It can teleport randomly. It can only exist in one form. It increases without any inputs or outputs. It cannot be created or destroyed.

Substances erhbd unique thermal conductnntres, which is the ability to concuct heat For instance, metals typically exhibit high thermal con conductivities, making them efficient conductors of heat. Which at the following materials would most likely have themal conductivit? Rukker Copper Alumnum Steel