Glass beads need to be placed in the balance tube when analyzing ; low surface area materials (one meter squared per gram or less). True False

Which of the following satellites is used to detect the launch of missiles? navigation military scientific research Earth observing

A flat straight line shows the object's velocity is a. Increasing b. Decreasing c. Staying the same d. Has stopped

Nhat is some of the evidence used by Galileo to support Copernicus's model and disprove Aristotle and tolemy's? Each planet spins in an epicycle. Planets appear to move backward. Jupiter has moons orbiting it. The religious and cultural beliefs supported this model.

Current Test: Question: How does Boyle's law apply to inhalation? decreases creating a vacuum. when the diaphragm causes the lungs to expand , the pressure increases creating a vacuum. when the diaphragm causes the lungs to expand resulting in a decrease in pressure creating a vacuum. when the diaphragm causes the lungs to expand,the pressure decreases resulting in exhalation Answer 1:when the diaphragm causes the lungs to contract., the pressure Answer 2: Answer 3: Answer 4:

What is the unit used to measure the illuminance or amount of total light per unit area that falls on a surface? watt lumen footcandle candlepower

Question 6(Multiple Choice Worth 2 points) (03.03 MC) Aschool cafeteria has thick padding installed along the walls and portions of the ceiling to reduce echoes. Which statement best explains the wave property this padding is taking advantage of? Refraction, because refracted waves have a lower intensity Reticetion, because reflected waves have a higher intensity Absorption, because absorbed waves go into the media Transmission, because transmitted workes move through media

5. Two rods one made of brass and other made of copper are to be joined end to end. The length of the brass section is 0 .2 meters long. The length of the copper section is 0.7 meters long. Both rod sections have cross section of 0.004 square meters . The free end of the brass segment is in boiling water. The free end of the copper section is in an ice -water mixture. The pressure is one atmosphere for both rods The sides of the rods are insulated perfectly. No heat can leave the sides of the rods over the length of the rods.Please calculate the temperature of the point where the two rods are connected . Thank you.

If the interrogation angle is increased from $45^{\circ }$ to $90^{\circ }$ what will happen to the measured velocity of the blood flow? A It increases B It decreases C it remains unchanged D It will be zero

What is the apparent power of $anAC$ circuit with a source voltage of 240V and a total current of 15A? 1.200W 2.400W 3.600W 7.200W

Where would the gravitational force be the greatest? A At the beach on the East Coast C All the top of I a mountain At the bottom of the ocean B At the surface of the moon