Final answer:
The statement regarding the exercises being plyometric is false; they are weightlifting exercises. The heart consists of cardiac, not smooth muscle tissue. Sprinting is an anaerobic exercise, and the force calculation for pushing the box is dependent on more factors than just height and length of the ramp.
Step-by-step explanation:
False. Power clean, snatch, push press, and high pulls are not examples of plyometric exercises. Plyometric exercises are quick, explosive movements designed to increase power and speed, such as jump squats and box jumps. The exercises listed are actually weightlifting exercises that are part of Olympic-style lifts and strength training, which involve lifting weights in a controlled manner to build muscle strength and power.
26. False. The heart is primarily made up of cardiac muscle tissue, not smooth muscle tissue. Cardiac muscle tissue is specialized muscle tissue that is found only in the heart and is responsible for the heart's continual pumping action.
27. True. Sprinting is considered an anaerobic exercise because it involves short bursts of high-intensity activity where the body's demand for oxygen exceeds the oxygen supply available. During sprinting, the body relies on energy sources that do not require oxygen, which makes it an anaerobic activity.
45. False- The statement that the boy must have been pushing with a force of exactly 100 N because the ramp was 1.0 m high and 3.0 m long is false. The actual force required to push the box up the ramp cannot be determined solely based on the height and length of the ramp, since it does not account for factors such as friction or the mechanical advantage of the ramp.