How long in seconds does it take for the propeller to turn through 37 ? Express your answer in seconds. ΑΣφ 11 ?
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- A car travels at a constant speed around a circular track whose radius is 3.51 km. The car goes once around the track in 259 s. What is the magnitude of the centripetal acceleration of the car?A hiking girl needs to go 59.3 km straight North to get to base camp, instead the compass confuses her and she travels 33.208 km at a 4.9° deflection East from straight North. Then she realizes what she has done and so guesses an angle of 18.4° deflection West of straight North and then hikes 46.254 km. What is the magnitude of her displacement from where she is now located to base camp. (put your answer is standard units)i need part b
- The minute hand on a watch is 1.00 cm in length. Use a coordinate system in which the y-axis points toward the 12 on the watch face. What is the displacement vector of the tip of the minute hand from 8:00 to 8:20 a.m.? Enter the x and y components of the displacement vector in centimeters separated by a comma. ► View Available Hint(s) Arx, Ary= Submit V ΑΣΦ Previous Answers Request Answer ? cmThe earth orbits the sun once every π x 107 s at a distance of 1.5 x 1011 m. Assuming uniform circular motion, what is its centripetal acceleration?▼ Part A What is the angle between vectors A and B if à = 2 î – 5 ĵ and B = −5 î + 7 ĵ? Express your answer in degrees. ► View Available Hint(s) 0 = Submit Part B 0 = 197| ΑΣΦ 6 What is the angle between vectors A and B if A = 2 î+43 and B = 8 î - 4 ĵ? Express your answer in degrees. ► View Available Hint(s) Submit ? || ΑΣΦ ? 0
- A race-car starts at the 3 o’clock position and drives counterclockwise on a circular track with a radius 4 miles. a/ What distance (in miles) has the race-car traveled if the angle swept out by the race-car is: (i). 90◦ (degree)? (ii). 5 radians? b/ What is the angle measure (in radians) swept out if the race-car has traveled 4 miles counterclockwise? c/ What does it mean about the path of the car for the angle measure to be greater than 4π radians? Explain.please do part cAn undiscovered planet, many lightyears from Earth, has one moon in a periodic orbit. This moon takes 1810 × 103 seconds (about 21 days) on average to complete one nearly circular revolution around the unnamed planet. If the distance from the center of the moon to the surface of the planet is 255.0 × 106 m and the planet has a radius of 3.30 × 106 m, calculate the moon's radial acceleration ?cac.