Q: What are objects that are launched into the air called? Read this paragraph and choose the correct option from the provided answers: Objects that are launched into the air are called projectiles . The path followed by a projectile in motion is called a trajectory . The image of the snowboarder in the chapter introduction showed his trajectory; every object has a trajectory even when we cannot see it. Projectile motion , or the object's trajectory, is described in terms of position, velocity, and acceleration. Even with only an object's current location, velocity, and acceleration, we can calculate when and where the object will land. Our knowledge that perpendicular components of vectors do not affect each other allow us to easily analyze the motion of projectiles. Choices: - booms - stones - shoots - projectiles A:
projectiles

Q: Skeletal, cardiac, and smooth are the three types of what cells and possess morphologies correlated with their functions? Read this paragraph and choose the correct option from the provided answers: 4.4 Muscle Tissue and Motion The three types of muscle cells are skeletal, cardiac, and smooth. Their morphologies match their specific functions in the body. Skeletal muscle is voluntary and responds to conscious stimuli. The cells are striated and multinucleated appearing as long, unbranched cylinders. Cardiac muscle is involuntary and found only in the heart. Each cell is striated with a single nucleus and they attach to one another to form long fibers. Cells are attached to one another at intercalated disks. The cells are interconnected physically and electrochemically to act as a syncytium. Cardiac muscle cells contract autonomously and involuntarily. Smooth muscle is involuntary. Each cell is a spindle-shaped fiber and contains a single nucleus. No striations are evident because the actin and myosin filaments do not align in the cytoplasm. Choices: - cartilage tissue - organ - bone - muscle A:
muscle

Q: When a fluorine atom gains an electron, it becomes a negative what? Read this paragraph and choose the correct option from the provided answers: When a fluorine atom gains an electron, it becomes a negative fluoride ion. Choices: - hydrogen ion - sulfide ion - potassium ion - fluoride ion A:
fluoride ion

Q: Choosing to not smoke and using sunscreen are examples of lifestyle choices that help prevent forms of what disease? Read this paragraph and choose the correct option from the provided answers: Making healthy lifestyle choices can help prevent some types of cancer. For example, you can reduce your risk of lung cancer by not smoking. You can reduce your risk of skin cancer by using sunscreen (see Figure below ). Choices: - pnemonia - bacterial disease - viral disease - cancer A:
cancer