"a ball of weight 5 newtons is suspended by two strings
as shown to the right.
determine the magnitude of each of the forces."

the figure on the right shows two strings connected to the ball, t1 and t2. t1 is 0.15m long and has a 53° angle with respect to the surface both strings hang from. t2 is .2m long and has an angle of 37° with respect to the surface. basically it forms a triangle.

my teacher provides all the answers, but no work or explanation, so i'm looking for a correct explanation on how to solve this.

The of a machine determines its "usefulness." a. input force b. output force c. mechanical advantage

Under conditions for which the same room temperature is maintained by a heating or cooling system, it is not uncommon for a person to feel chilled in the winter but comfortable in the summer. provide a plausible explanation for this situation (with supporting calculations) by considering a room whose air temperature is maintained at 20â°c throughout the year, while the walls of the room are nominally at 27â°c and 14â°c in the summer and winter, respectively. the exposed surface of a person in the room may be assumed to be at a temperature of 32â°c throughout the year and to have an emissivity of 0.90. the coefficient associated with heat transfer by natural convection between the person and the room air is approximately 2 w/m2 â‹…â‹… k. what is the ratio of the thermal resistance due to convection to the thermal resistance due to radiation in the summer? what is the ratio of thermal resistances in the winter

Waves are used in many practical applications to support work, entertainment, and health. one example is the use of ultrasound imaging to safely track the development of a growing fetus. what is a specific example of a practical application of waves in medicine, entertainment, safety, or other fields? provide a brief explanation of how the properties of waves are useful to that application.