Grace

A soccer ball, kicked from ground level at an angle of 73.0° above horizontal, is in the air for 4.80 s. What was its initial speed just after it was kicked? Ignore air resistance.

A bug starts at a position given by (42,28)then moves to position (29,36) then moves to position (11,12). Determine the magnitude and direction of the bug's displacement? Please show steps

Consider a chemical known to contain only C, H, S and O. The chemical is then subjected to two combustion analysis experiments in the presence of excess oxygen. One experiment measures the mass of CO2 and H20 produced, while the other experiment measures the mass of SO2 produced. In the 1st experiment, the combustion of 32.149 mg of the sample yielded 57.271 mg of CO2 and 23.444 mg of H20. In the second experiment, the combustion of 33.565 mg of the sample yieled 14.507 mg of SO2. What is the empirical formula?

tetracycline a common medication that is used to treat bacterial infections prevents amino-acyl -tRNA from binding to the

ribosomal subunit. Describe the effect on the cell?

Why would it not have been possible to use 1.5 g of Mg (when the procedure called for 0.5 g) with the stated procedure (which instructs to neutralize products with 100 mL of NaOH)? Given the reaction: Mg(s) + 2HCl(aq) ---> H2(g) + MgCl2(aq), where 0.5 g of Mg(s) reacts with 100 g of HCl(aq).

I woke up today with extreme jaw pain, and a fat face. How do I fix this, I have an important event tomorrow!!!!!!

In studying a solid material for possible use in a solar cell (which turns light into electrical energy), material engineers shine a monochromatic blue light (λ = 420 nm) to produce photoelectrons. They measure the maximum kinetic energy of the emitted electrons to be 1.00 x 10-19J. Predict what will happen when the engineers test the material with red light (λ = 700 nm). Will the light dislodge electrons from the material? If so, how much kinetic energy will those dislodged electrons have?