Determine the resultant force that acts on the hook:

How do we get 2.264 and .4415?

I need help mostly with question 4 and 5.

I thought the letters represented the connection between the forces and magnitude. Can you help me truly understand how to evaluate this correctly? Thanks

Kayla began a science experiment with 18 grams of an unknown solid. During the experiment, the change in the mass of the solid was  – 7  grams. What was the mass of the solid at the end of the experiment? To solve the problem, Edna subtracted  18 – ( – 7 )  and came up with an answer of 25 grams. Is Edna correct? Why or why not?   Yes, Edna is correct. No. The answer should have been  – 25  grams, not 25 grams, because the mass of the solid decreased. No. Edna should have added  18 + ( – 7 )  because she needed to add the initial mass and the change in mass. Submit

Please show your step by step solution. Draw a figure and Free Body Diagram (FBD) whenever necessary. Use 4 decimal places in your solution and 2 decimal places in your final answer.

Hello, I need your help.    Topics: Force System of a Force, Moment of a Force, Moment of a Force-Scalar Formulation, Moment of a Force-Vector Formulation, and Principle of Moment.   Note: Kindly show the complete step-by-step solution. Please make sure that your handwriting is understandable and the picture of the solution is clear. I will rate you with “like/upvote” after. Thank you so much.

i dont really understand the explanation of part b or how they used trigonometry to get that. can you please help.

An electric hot water heater consumes 3.1 kilowatts of electricity and converts it to heat. How long will it take the water heater to heat a 67 gallon tank of water from 10 degrees Celsius to 50 degrees Celsius? (1 kilogram of water is 0.37 gallons, 1 Calorie = 4200 J).  It may be helpful to refer back to the weekly handout for guidance on this problem. Your final answer should be in minutes (rounded to the nearest 10 minutes).

Solve it pleas