What were the accomplishments of archimedes?

How did testimony such as this from the triangle shirtwaist factory disaster affect the workplace?

How does the balance of trade look different in the us today vs hot it looked in the 70's

How does the supremacy clause of the u.s. constitution affect the states? o a. it requires each state to establish a supreme court. b. it declares that the federal government can take away state powers if necessary. o c. it allows state governments to overthrow the federal government if necessary. o d. it ensures that the u.s. constitution overrules each state constitution