Buddy the Elf throws a 0.420kg snowball from rest to a maximum velocity of 15.0m/s. How much work was
done by Buddy to accelerate the snowball to 15.0 m/s?
47.3J
41.2J
94.5J
Not enough information

Three point charges, two positive and one negative, each having a magnitude of 20 μc are placed at the vertices of an equilateral triangle (30 cm on a side). what is the magnitude of the electrostatic force on the negative charge

An object thrown vertically upward from the surface of a celestial body at a velocity of 36 m/s reaches a height of sequalsminus0.9tsquaredplus36t meters in t seconds. a. determine the velocity v of the object after t seconds. b. when does the object reach its highest point? c. what is the height of the object at the highest point? d. when does the object strike the ground? e. with what velocity does the object strike the ground? f. on what intervals is the speed increasing?

Aballet student who learns with the of his instructor is demonstrating learning.