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- How is the angle of F1 70 degrees ?A man 167.68 centimeters tall .is walking directly away from a lamp postfronting a building at the rate of 91.46 centimeters per second. If the lamp is 8meters above the ground, finda. The rate at which his shadow is lengtheningb. The rate at which the tip of the shadow is movingPhysics HW need Help?can anyone explain in detail and step by step how to find the max angle in this problem?
- The fish in a pond is 15 m from the shore. Above what depth will he not be able to see a small rock at the water's edge? (nsu=1,33)A high fountain of water is located at the center of a circular pool. Not wishing to get his feet wet, a student walks around the pool and measures its circumference to be 32.0 m. Next, the student stands at the edge of the pool and uses a protractor to gauge the angle of elevation at the bottom of the fountain to be 55.0∘. How high is the fountain?The rear window in a car is approximately a rectangle, 1.7 mwide and 0.45 m high. The inside rearview mirror is 0.50 m fromthe driver’s eyes, and 1.90 m from the rear window. What are theminimum dimensions for the rearview mirror if the driver is to beable to see the entire width and height of the rear window in themirror without moving her head?
- What is the critical angle for the interface between material 1 (n=1.58) and material 2 (n=1.30)?I'm confused as to why the angle changes to 60 deg. Why wouldn't the angle be 30deg?Determine how far ( in km) out from shore an inter- island vessel will be when a red on its deck, 9.45 m above the water, disappears from the sight of a child standing on shore abd whose eye level is 1.32m above the water.
- A fountain of water is located at the center of a circular pool. Not wishing to get his feet wet, a student walks around the pool and measures its circumference to be 16.5 m. Next, the student stands at the edge of the pool and uses a protractor to gauge the angle of elevation at the bottom of the fountain to be 55.0°. How high is the fountain?Frieda deFish, disturbed at Bruno's militance, pulls out a laser of her own. She temporarily ducks out from her cover and aims it upwards at an angle of 26.5-degrees at Bruno's nose. If Bruno's nose is 1.34-m above the water's edge and if Frieda is a distance of 0.91 m below the water's surface, then how far out from shore must Frieda be to have a direct hit?A pole which leans to the sun by 10° 15’ from the verticalcasts a shadow of 9.43 m on the level ground when theangle of elevation of the sun is 54°50’. The length of thepole is? (Please sketch)