Question 1 (1 point) True or False: When a ball is twirling at a uniform speed on the end of a string, the inward force is zero. Question 2 (1 point) True or False: An object can be accelerating while maintaining a uniform (constant) speed. Question 3 (1 point) If you were to reduce the radius of the are through which you twirled a ball on a string by one-half, the size of the inward force (tension) in the string would be _ as large Question 4 (1 point) If you were to increase the mass of the ball by five times, the size of the inward force (tension) in the string would be as large. Question 5 (2 points) The centripetal force acting on a 2.5 kg object whirling at a speed of 3.5 m/s in a horizontal circle of radius 0.80 m is: N. (Give your answer with the correct number of significant digits and do not include units) A/ Question 6 (2 points) A car travelling at 20 m/s goes around an unbanked curve in the road which has a radius of 122 m. The acceleration experienced by the car is _m/s2. (Give your answer with the correct number of significant digits and do not include units) A/ Question 7 (2 points) An object travelling in a circle with a radius of 5.0 m has a frequency of 6.0 Hz. The speed of the object is x102 m/s. (Give your answer with the correct number of significant digits and do not include units) A/Question 8 (2 points) If the centripetal acceleration on a stone being whirled in a circle at the end of a 1.75 m string is 350 m/s2, the frequency of rotation is _Hz? (Give your answer with the correct number of significant digits and do not include units) A/ Question 9 (2 points) A 1000 kg car enters an unbanked curve of 80 m radius. If the coefficient of friction between the pavement and the car tires is 0.51, the maximum speed which the car can go around the curve is _m/s. (Give your answer with the correct number of significant digits and do not include units) A/Question 1 (2 points) A student is riding their bmx bike on a track that forms a vertical circular loop with a diameter of 6.0m. In order to reach the top of the loop and not fall, the student would have to be travelling at a speed of _m/s. (Give your answer with the correct number of significant digits and do no include units). ~ Question 2 (2 points) A student has a weight of 650 N. While riding on a roller-coaster this same student has an apparent weight of 1.97 x 103 N at the bottom of a loop that has a radius of 17.0 m. The speed of the roller-coaster is mls. (Give your answer with 3 sig digs and do not include units). ~ Question 3 (2 points) A string requires a 191.0 N force in order to break. A 1.75 kg mass is tied to this string and whirled in a vertical circle with a radius of 1.92 m. The maximum speed that this mass can be whirled without breaking the string is _m/s. (Give your answer with 3 sig digs, and do not include units) A Question 4 (2 points) A 2.5 kg object is whirled in a vertical circle whose radius is 0.89 m. If the time of one revolution is 0.94 s, the magnitude of the tension in the string (assuming uniform speed) when it is at the top is _N. (Give your answer with 2 sig digs, and do not include units)Question 1 (2 points) Mars has an orbital radius of 1.524 AU. Using Kepler's constant of 1a2/Au you can determine it's orbital period is years. (Give your answer with 4 sig digs and do not include units). A/ Question 2 (2 points) Neptune has 3 moons, Proteus, Triton and Nereid. Proteus has an orbital radius of 117600 km and an orbital period of 1.12 days. Triton has an orbital radius of 354800 km. The orbital period of Triton is _days. (Give your answer with the correct number of sig digs and do not include units)Use the table below to answer the following 4 questions: The Solar System Period of Period of Mass Radius of rotation Moan radius revolution of Object (kg) object (m) on axis (8) of orbit (m) orbit (s) Sun 1.98 x10\" 6.95 x103 2.14 x10\" - Mercury 3.28 x 1023 2.57 x 10' 5.05 x 10" 5.79 x 10'\" 7.60 x 10' Venus 4.83 x10" 6.31 x 10 2.1 )(101 1.08 x1011 1.94 x 101 Earth 5.97 x10\" 6.37 X106 8.61 x10' 1.49 x10\" 3.16 x101 Mars 6.37 X 1023 3.43 x10\" 8.85 x10' 2.28 x 10\" 5.91 3:10" Jupiter 1.90 x10" 7.18 x101 3.54 3:10\" 7.78 x1011 1.74 x10\" Saturn 5.67 X 102'3 6.03 x 10' 3.60 x 10\" 1.43 x 1012 9.30 x 10' Uranus 8.80 x 1025 2.67 x 10' 3.88 x 10'I 2.87 x 1012 2.66 x 109 Neptune 1.03 x 10'6 2.48 x 107 5.69 x 10" 4.50 x 1012 5.20 x 109 Pluto 6 X 1023 3 x105 5.51 x105 5.9 x 1012 7.82 x109 Moon 7.34 x1022 1.74 x106 2.36 x10\" 3.8 x105 2.36 x 105 Question 1 (2 points) If a small planet were located 7 times as far as the Earth's distance from the Sun, it period is _ earth years? (Give your answer with gggs and do not include units) A Question 2 (2 points) An asteroid has a mean radius of orbit of 4.6 x '1011 m. Its orbital period around the sun is _x1033. (Give your answer with ggg and do not include units) :] AJ Question 3 (2 points) For a satellite to have a speed of 7400 mls, it must be _x105 m above the earth surface. (Give your answer with g sigggs and do not include units) :] AJ Question 4 (2 points) A satellite is located 450 km above the surface of the Earth. It would take the satellite _x103 5 to complete one orbit of the Earth. (Give your answer with gggs and do not include units) :w