can you please help me with solving these

Part A A car of mass M = 1500 kg traveling at 40.0 km/ hour enters a banked turn covered with ice. The road is banked at an angle 0, and there is no friction between the road and the car's tires as shown in What is the radius r of the turn if 0 = 20.0 * (assuming the car continues in uniform circular motion around the turn)? (Figure 1). Use g = 9.80 m/s throughout this problem. Express your answer in meters. View Available Hint(s) VO ? r= m Figure Submit Request Answer Provide Feedback Next >Part A A pilot performs an evasive maneuver by diving vertically at 300 m/s . If he can withstand an acceleration of 8.0 g's without blacking out, at what altitude must he begin to pull out of the dive to avoid crashing into the sea? Express your answer to two significant figures and include the appropriate units. ? r = Value Units Submit Previous Answers Request AnswerV Part A The space shuttle releases a satellite into a circular orbit 500 km above the Earth. How fast must the shuttle be moving (relative to Earth) when the release occurs? Express your answer using three significant figures and include the appropriate units. HA ? U= Value Units Submit Request AnswerPart A At what minimum speed must a roller coaster be traveling so that passengers upside down at the top of the circle (see the figure) do not fall out? Assume a radius of curvature of 8.9 m (Figure 1) Express your answer using three significant figures and include the appropriate units. HA ? Umin = Value Units Figure