A ___vector____________ is a quantity that is fully described by both _____magnitude______ and _____direction________.
What is the SI unit for density? The density of blood is 1.05 kg/m3, find the mass of a bag of blood for a transfusion, if the volume is 2.0 m3. The density of oxygen is 1.43 x 10 -3 kg/m3. If a canister of oxygen has a mass of 0.2 kg, find the volume. Using the […]
The density of oxygen is 1.43 x 10 -3 kg/m3. If a canister of oxygen has a mass of 0.2 kg, find the volume.
The graph shows world energy source use – describe the trend in the graph and suggest 2 reasons for changes over time.
A 72N force accelerates mass m by 5.0m/s 2. The same force acts on another mass m2 and imparts to it an acceleration of 20.0m/s2. What acceleration will be the same force impart to the two.masses when they are joined together.A
Explain the relationship between a planet’s distance from the sun, the lengthy of a year, and duration of it’s orbit
This problem is about how strongly matter is coupled to radiation, the subject with which quantum mechanics began. For a simple model, consider a solid iron sphere 2.00 cm in radius. Assume its temperature is always uniform throughout its volume. (a) Find the mass of the sphere. (b) Assume the sphere is at 20.0°C and […]
Vascular plants can be divided into three categories. These categories are A).flowering, nonflowering, and leafy. B).leafy, ground, and underwater. C).seedless, seed (nonflowering), and seed (flowering). D).seedless, seeded, flowering.
One differentiating characteristic between vascular and nonvascular plants is the lack of active transport structures in the nonvascular plants. How does the lack of xylem or phloem contribute to the smaller size of the nonvascular plants? A).Nonvascular plants are smaller because xylem and phloem help a plant stand up taller. B).Nonvascular plants have other transport […]
A small puck with a mass of 0.10 kilograms is sliding in the +x-direction on an air table with an initial speed of 8.0 meters/second. The puck collides with a larger puck that is initially at rest. The larger puck has a mass of 0.40 kilograms. After the collision, the smaller puck has a speed […]
