CAN SOMEONE PLS HELP ME??? I NEED HELP FAST Differentiate between a CME, Prominence, Sun Spots, Solar Flair, and Space Weather.

Janelle made a hypothesis bout the uneven temperatures inside her house during winter. she believes that 50% of the ducts are blocked and she plans to investigate. if she wants to prove her hypothesis using scientific processes what should she do next?

Aparticle initially moving east with a speed of 20.0 m/s, experiences an acceleration of 3.95 m/s, north for a time of 8.00 s. what was the speed of the particle after this acceleration, in units of m/s? give the answer as a positive number.

In positive numbers less than 1, the zeros between the decimal point and a non-zero number are blank significant