Radar allows pilots to see through clouds, rain, darkness, and fog. It can detect objects so a pilot can avoid hitting
them. Radar is also used by the police to detect the speeds of cars on the highway. Radar uses radio waves. Explain
why gamma rays are not used for radar instead of radio waves.

Gamma rays have more energy than radio waves and could harm people

Gamma rays do not have enough energy to see through the clouds.

Gamma rays are slower than radio waves so would not work for police radar speed detectors.

Gamma ray are only in outer space.

Consider the motion of the balloon and its air contents in terms of momentum. in step 1 above, the total momentum of the balloon and its contents was zero. recall that momentum = mv. both the balloon and the air inside it had a velocity of zero and therefore the total momentum was zero. now think about what happened when the air escaped from the balloon. a certain mass of air accelerated in one direction. in order to keep the total momentum of the system zero, the balloon itself (which has mass) had to accelerate in the opposite direction. use this scenario to you explain why the soda can rotates when the water squirts out of the escape holes. what was your hypothesis concerning the water-filled can? according to your data, do you think your hypothesis was correct? (be sure to refer to your data when answering this question.) summarize any difficulties or problems you had in performing the experiment that might have affected the results. describe how you might change the procedure to avoid these problems. give at least one more example of newton's third law in everyday life.

Urgent. the table shows the relative blood flow through some organs in the human body that is, the percentage of blood that flows through a given organ, through which organ(s) does all the blood flow? explain the effect of exercise on blood flow to skeletal muscles.

Which of the following is the earliest era of earth's geologic time scale? cenozoic mesozoic precambrian paleozoic