Acertain automobile manufacturer claims that its super-deluxe sports car will accelerate from rest to a speed of 42.3 m/s in 8.02 s. find the acceleration of the car. assume that the acceleration of the car is constant. answer in units of m/s 2 .

What if? if the temperature near the cliff suddenly falls to 0°c, reducing the speed of sound to 331 m/s, what would the initial speed of the rock have to be (in m/s) for the soccer player to hear the sound of the splash 2.90 s after kicking the rock?

Abaseball picther can throw a ball at about 90 miles per hour, v = 40 m/s, on solid rock ground. we now put him into space. when he throws the ball, which weighs mb = 0.15 kg moves away from himat the same speed. how long does it take the ball thrown in space to travel the 30 meters to the batter? he weighs mp = 100kg

True or false when elements combine to form a mixture, the resulting chemical properties may be very different from those of the elements that make it.