A minibus had 23 passengers at the beginning of a journey. twelve passengers alighted at the first stop while 9 boarded six of those who boatded at the first stop alighted at the second stop and 12 got in .the minibus should not stop again up to the final destination .the charges from the starting point were $50 up to the first stop ,$70 up to the second stop and $85 up to the final destination. how many passengers alighted at the final destination. how many passengers were ferried by the minibus through the journey. how much money was collected during the trip. maths question

The experiment done in lab is repeated, using a ball that has unknown mass m. you plot your data in the form of f 2 versus m/l, with f in rev/s, m in kg, and l in m. your data falls close to a straight line that has slope 3.19 m/(kg · s2). use g = 9.80 m/s2 and calculate the mass m of the ball.

For waves in the ocean, the medium of the waves is a. air b. water c. energy d. a passing boat

Simon is writing a story about an astronaut whose spacecraft has been boarded by space pirates. the astronaut has her lucky penny in her hand behind her back as the space pirates break into the control room. she has just locked the controls so that the ship is accelerating in the direction of the control room’s ceiling. simon wants the astronaut to use the penny to hit a button on the control panel to turn off the lights and escape. the button is located a short distance behind and below the astronaut’s hands. how should simon use the theory of relativity to describe what the astronaut must do in order to hit the button?