A crane lifts a load of 30 000 kg to the top of a building that is 40 m high. a. Calculate the weight of the load (g = 10 N/kg).

b. Calculate the work done by the crane.

From the graph the speed of the snail in the first 20 seconds centimeter/second. after that, the snail remains in the same place for seconds

True or false graphs must include scales that increase by the same amount

Objects a and b are visible in the night sky. six months later they are still visible, but object b shows less parallax than object a. which object is closer? a. a b. b c. you would need to wait another six months in order to figure this out. d. you would need to know the objects' angular diameters in order to figure this out.