The plot of a plane is flying in a vertical circle that has a radius of 900 m A student thought that these events as shown. What speed must the plane maintain to keep moving in this circle with 1. The engine of a car exerts a force that causes the car to speed up. the condition that the pilot feels weightless at the top of the loop? 2. A truck driver turns the wheels of a semitrailer at the beginning of a curve. 3. The force of gravity keeps a satellite in a stationary orbit above the Earth. 4. An electron travels around a nucleus due to electrical forces. Which events actually involve centripetal acceleration?. 01 and 3 only 02, 3, and 4 only 01, 2, and 3 only 0 93.9 m's 02 and 3 only O26.1 m/'s 091.8 m/'s Q3:38 mis 9. The moon takes 27.3 days to circle Earth and its centre is located 3.84 x 6. During a rainstorm, a truck is travelling through a highway curve that has 105 m from the centre of Earth. The Moon's acceleration is a.bc x 10-d a radius of 150 m. If the coefficient of friction between the highway m/s2. The values of a, b, c, and d are (Record your 4 asphalt and the truck's rubber tires is 0.50, what is the maximum speed digits answer) (km/h) for this truck before it will begin to skid? Your answer: 0DOO 0 38 km/h A centrifuge is rotating at a frequency of 1260 rpm. Then, in scientific notation, the distance of a point that has a speed of 16.0 m/s is a.bc x 075 km/h 10-d N. The value of a, b, c, and d, respectively, are (Record all four digits answer O 140 km/h Your answer: DODO 098 km/h Assuming the force due to gravity is 15.0 N and the centripetal force is 5. A student rides a bicycle at 15.0 m/s around a circular track that has a 20.0 N. determine the tension at the top of the circle and at the bottom of radius of 70.0 m. If the mass of the student and bicycle is 100 kg, what is the circle. the centripetal force? Otop of the circle: 35.0 N, bottom of the circle: 1.53 N O214 N top of the circle: 1.53 N, bottom of the circle: 35.0 N 0321 N Otop of the circle: 5.00 N, bottom of the circle: 35.0 N O 158 N Otop of the circle: 35.00 N, bottom of the circle: 5.0 N 105 N 10. The mean distance of Planet X from the sun is 5.9 x 1012 m. If Kepler's constant for planets is 3.4 x 1015 m /s?, what is the orbital period of Planet X in Earth days? O2.2 x 106 days 05.2 x 1026 days 03.1 x 1023 days 09.0 x 10* days