- Question 1 (1 point)
A3.00E-6 kg snowflake is falling towards the ground with a constant velocity of <0.3, 0, -1.2> m/s. A sudden gust of wind lasting 2.0 s results in the snowflake moving with velocity < 2.3, 3.0,-2.2> m/s. What was the net force on the snowflake during the sudden gust of wind? (Assume the net force was constant during this period.)
A. < 3.0E-6,4.5E-6, -1.5E-6 > N
0
B. < 2.0, 3.0, -1.0 > N
0 <-6.0E-6, -9.0E-6, 3.0E-6 > N
O
C. < -1.0, -1.5, 0.5 > N
0
D. < 2.3E-6, 3.0 E-6, -2.2E-6 > N

Describe the path of the electric current through a circuit?

Astudent is performing an experiment comparing sound and light waves. the student gathers the following data. what conclusion does the student most likely make based on this data? light waves always travel the same speed; however, the speed of sound is determined by the medium that it travels through. all sound waves always have the same energy, so the temperature of the medium does not affect wave speed. light needs to vibrate particles, so it travels fastest in tightly packed solids, while sound does not need a medium, so it travels fastest in a gas. tightly packed particles in solids slow down the light waves; however, sound waves make particles bounce into each other, so they travel faster in solids.

We will use a video to study faraday’s law of electromagnetic induction by analyzing the induction that occurs due a coil of copper wire sliding along an air track that passes through an external magnetic field. specifically, we will: examine some of the main principles behind faraday’s law. apply lenz’s law to determine the direction of the induced emf. take measurements of the induced emf from the voltmeter as the coil passes into and out of the external magnetic field. use the horizontal scale provided to determine the speed of the coil. calculate the magnetic field induced in the coil as it passes into and out of the external magnetic field.