Q: Answer the following question given this paragraph: The heart of a resting adult pumps blood at a rate of 5.00 3 L/min. (a) Convert this to cm /s . (b) What is this rate in m 3 /s ? 3. Blood is pumped from the heart at a rate of 5.0 L/min into the aorta (of radius 1.0 cm). Determine the speed of blood through the aorta. Blood is flowing through an artery of radius 2 mm at a rate of 40 cm/s. Determine the flow rate and the volume that passes through the artery in a period of 30 s. The Huka Falls on the Waikato River is one of New Zealand's most visited natural tourist attractions (see Figure 12.29). On average the river has a flow rate of about 300,000 L/s. At the gorge, the river narrows to 20 m wide and averages 20 m deep. (a) What is the average speed of the river in the gorge? (b) What is the average speed of the water in the river downstream of the falls when it widens to 60 m and its depth increases to an average of 40 m?. Q: What does the human heart do? Choices: - destroy blood - use blood - make blood - pump blood A:
A: pump blood

Q: Answer the following question given this paragraph: Soil is a renewable resource. Sometimes it is lost faster than it can be replaced. Q: What kind of resource is soil? Choices: - nonrenewable - finite - viable - renewable A:
A: renewable

Q: Answer the following question given this paragraph: Temperature is a measure of the average kinetic energy of the particles in matter. In everyday usage, temperature indicates a measure of how hot or cold an object is. Temperature is an important parameter in chemistry. When a substance changes from solid to liquid, it is because there was an increase in the temperature of the material. Chemical reactions usually proceed faster if the temperature is increased. Many unstable materials (such as enzymes) will be viable longer at lower temperatures. Q: What is the measure of kinetic energy of the particles in matter? Choices: - energy - precipitation - friction - temperature A:
A: temperature

Q: Answer the following question given this paragraph: The external female reproductive structures are referred to collectively as the vulva. They include the labia (singular, labium), which are the "lips" of the vulva. The labia protect the vagina and urethra, both of which have openings in the vulva. Q: The external female reproductive structures are referred to collectively as what? Choices: - the cervix - the uterus - the Fallopian tube - the vulva A:
A: the vulva