a museum curator pulls a 150 kg sculpture across the museum floor, with an acceleration of 0.5m/s2 what is the net force on the sculpture in newton’s ?

What are atoms of the same element with varying number of neutrons

Ivana walks 2km north then turns around and walks 3km south

If a 2 ounce coin is dropped from the top of the washington monument and has a final velocity of 300 mph (miles per hour) when it hits the ground, how much kinetic energy will it have at that time?