Physics

Content Covered: - 2D Kinematics

Directions: Answer the following problems below by showing the complete solution. In return, I will give you a good rating. Thank you so much!

Note: Please be careful with the calculations in the problem. Kindly double check the units, significant digits, and the solution and answer if there is a deficiency.

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1.

. Tb Calculate the moth's acceleration when it reaches point P, which is 45 deg above the horizontal axis. Give the answer in 131,552, with vector components in the a: (i) direction and y [j] direction. 3: Enter answer here .ch: Enter answer here .23 Astronaut Heart Rate 9 A space station is in a far orbit travelling at 100, 000 III/ts relative to a hospital on Earth. An instrument in the hospital measures a low heartrate of 40 131313] for an astronaut on the space station. What is the astronaut's heart rate in bpm in their own reference frame? Enter answer here +X O +X O K -y O -X -y2.10 Relativistic Phone 10 The resolution of the timer on your phone is 0.01 s How fast would your phone need to be moving (relative to you) in m/s so that the effects of special relativity on its accuracy become significant when measuring a 1 minute process? Enter answer here. 2.7 Moth Circling a Light 7a A moth moves clockwise along a circular path of radius 5 cm around a light {see gure below}. Rather than uniform circular motion, its speed increases by 1 (3111/3 every second. The moth begins from rest at the position shown. Which of the following could represent its total acceleration vector at th at point? 2.35m: Hunter 3 Special Agent Smith is aboard a secret government train which is moving at a constant speed of13.5 Ill/5 havingjust retrieved an experimental explosive from some enemy spies. However, the expiosive has been activated with no way to turn it off. Smith runs at a speed of 4.2 111/5 toward the back of the train. When she reaches the middle of the last ca r, while she is still running, Smith throws the explosive at an angle which she observes to be 589 with the track. Just after reaching the peak of its trajectory, the explosive explodes extremely dramatically. A reporter watching the scene unfold from the side of the tracks observes the explosive moving vertically with no horizontal motion (i.e. there is no velocity in the x-direction from the perspective of the reporter}. How high does the reporter see the explosive rise? Give your answer in 111. Enter answer here