A mass of 10kg was released from rest from a top of building initial potential energy of the mass with respect to the ground is 400J .the speed of the ball just before strikes the ground is?

The chart shows the costs and shipping times for materials that a company needs to build a new product. which describes the best trade-off if the company needs to start building their product within the next two years? they should order the domestic materials because it is always best to choose the fastest shipping time. they should order the imported materials because it is always best to choose the lowest cost for materials. since the shipping time is longer, they should order the domestic materials because the additional cost is worth it to get the materials in time. even though the shipping time is longer, they should order the imported materials because they are less expensive and should arrive in plenty of time to build the product.

Did anyone do 1.06 lab: cloud formation i need with it i go to k12 lavcame i need to get it done quick

An object is kept at 45 m high and how much time will it take to reach the ground