What is the magnitude of the vector described below?

"15 ft/s down"

A. 15 ft/s

B. Feet

C. Feet per second

D. Down

A scientist measures the growth of a bamboo plant over time. The table below shows the results. Time (hours) Height (cm) 10 1.2 20 1.5 30 1.8 40 2.1 50 2.4 60 2.8 What is the best inference for the height of the plant after 15 hours? A. 1.35 cm B. 1.

2. What kind of waves are caused by sound? Describe what is happening to molecules.

The reaction of two positively charged objects that are near each other

A capacitor is charged to a potential difference of 12v it delivers 40% of its stored energy to a lamp what is the final potential difference across the capacitor

A resistor uses 100 w of power when connected to 120 v emf. What is the current through the same resistor when connected to a 220 v emf?

An archer shoots an arrow at a 75.0 m distant target; the bullâs-eye of the target is at same height as the release height of the arrow. (a) at what angle must the arrow be released to hit the bullâs-eye if its initial speed is 35.

Which of the following is considered a contact forces?1) the force between two magnets. 2) the gravitational pull of a planet. 3) friction between an object and air. 4) the force between two charged particles.

All matter can be described by using what properties

When a quantity of monatomic ideal gas expands at a constant pressure of 4.00*104pa, the volume of the gas increases from 2.00*10-3m3 to 8.00*10-3m3?

When the notebook is sitting on the table, what force prevents it from falling into the space below the table? If you don't know the name of this force, just describe it. What force keeps the notebook from floating in the air?