Plz for 1. what is the mass of the object from the previous question if we put it on the moon? the force of gravity on the moon is 1.62 m/s^2 21,532 kg 2,197 n 3,515 n 2,197 kg 2. how much force is exerted if a 250 kg object has an acceleration of 750 m/s^2 ? 0.33 n 187,500 n 3 n none of the above 3. a resting soccer ball moving after it is kicked is an example of which of newton's laws? 1st law 2nd law 3rd law

Choose the molecule that is described by each phrase. energy used during long activities:

Which is an advantage of having memory cells when a pathogen is encountered for a second time. a) the memory cells are what proliferate into clones of cells in response to the binding of an antigen. b) memory cells are vital to the primary immune response in that they immediately recognize pathogens even at the first encounter. c) memory cells are essentially effector cells that are short lived and attack antigens even without having a receptor specific to that antigen. d) it ensures that more lymphocytes with a receptor specific to a particular antigen will be present than in a host that had never encountered that pathogen.

Need with these questions . need the answers in a rush for these questions are the answers i put down are correct or not? ?