Which of the following is not accelerating? Q) A. a car coming to a stop a t a traffic light B. a sprinter starting from rest and running 100 min 9.8 s C. a racecar traveling 175 km/ hr on a straight track D Which of the following is not accelerating? Q) A. a car coming to a stop a t a traffic light B. a sprinter starting from rest and running 100 min 9.8 s C. a racecar traveling 175 km/ hr on a straight track D an airplane traveling at 500 km/hr and turning to the north

Trumpeter a holds a b-flat note on the trumpet for a long time. person c is running towards the trumpeter at a constant velocity. person b is running away from the trumpeter at the same rate. person d is standing still the whole time. which person hears a frequency that is lower than the b-flat?

During spring semester at mit, residents of the parallel buildings of the east campus dorms battle one another with large catapults that are made with surgical hose mounted on a window frame. a balloon filled with dyed water is placed in a pouch attached to the hose, which is then stretched through the width of the room. assume that the stretching of the hose obeys hooke's law with a spring constant of 89.0 n/m. if the hose is stretched by 5.80 m and then released, how much work does the force from the hose do on the balloon in the pouch by the time the hose reaches its relaxed length? unitst 3 number-1497 the tolerance is +/-5% open show work click if you would like to show work for this question:

Students design a model roller-coaster track. they place a rubber ball at the highest point on the track and let it go. the ball rolls along the track pulled only by the force of gravity. eventually, it comes to a stop. which change to the design will result in the ball moving the greatest distance?