physics labs 6 7 follow the instructions

Hello,

the links are in the instructions for this labs. and I attached the labs that you have to answer

https://learn-us-east-1-prod-fleet01-xythos.s3.us-east-1.amazonaws.com/5c1c67a3c99fc/2046966?response-content-disposition=inline%3B%20filename%2A%3DUTF-8%27%27Lab%2520Expt_6_Density%2520Procedure%25281%2529.pdf&response-content-type=application%2Fpdf&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Date=20200417T004800Z&X-Amz-SignedHeaders=host&X-Amz-Expires=21599&X-Amz-Credential=AKIAZH6WM4PLTYPZRQMY%2F20200417%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Signature=29396cc37cba68e08116a269de2537ac90ed06ff11101752a0873edb10723d68

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https://learn-us-east-1-prod-fleet01-xythos.s3.us-east-1.amazonaws.com/5c1c67a3c99fc/2046876?response-content-disposition=inline%3B%20filename%2A%3DUTF-8%27%27Lab%2520Expt_7%2520Procedure.pdf&response-content-type=application%2Fpdf&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Date=20200417T004850Z&X-Amz-SignedHeaders=host&X-Amz-Expires=21600&X-Amz-Credential=AKIAZH6WM4PLTYPZRQMY%2F20200417%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Signature=1faf39b82edb43f61c1b4a76f036bc7c7a421309a061d0c554c6fec6dac28a98