Answer question 1, and then answer these questions based on question 1. 2- For question #1, what is the sum of the Y components of all 3 forces depicted? 3- For question #1, what is the magnitude of the resultant force? 4- For question #1, what is the angle (multitude only) of the resultant force?

Assume the Earth is a uniform sphere with constant density. Let R represent the radius of the Earth and g be the acceleration due to gravity at the surface. At which location above the surface of the earth will the acceleration due to gravity be g/3? Check to see if the answer is correct or/and makes sense, and show your work. RE = 6370 km ME = 6 x 1024 kg

The class I'm taking is physics for scientists and engineers! i have attached 2 actachments . please view both! the first attachment has the the value of the slope. I am completely stuck. Need help. If you can please explain your answer so I can fully understand.  Thank you! problem:  part AUsing your value of the slope, what is the value of gravity? (please answer to three significant digits) part BThe value of gravity is often reported as 9.8 m/s2   Why is our value so different? part CUsing the accepted value of gravity, 9.8 m/s2, and the value 476*x + 56.1, calculate the percentage uncertainty in our value.Make sure you are using the same units for the accepted and measured values (you will have to convert one or the other so that the units match), use this formula to calculate the percent uncertainty:Percent uncertainty=(accepted−measured) divided by accepted * 100%​ Please report your answer to two significant digits. This means reporting two digits and seeing if the second digit…

A jet plane travels towards a ground-based radar dish. Radar locates the jet plane at a distance D = 11 km from the dish, at an angle θ = 46° above horizontal. 1.) What is the jet plane’s horizontal distance, DH in meters, from the radar dish? 2.)What is the jet plane's vertical distance, DV in meters, above the radar dish? 3.)Write an expression for the distance vector, D, in rectangular form in terms of D and θ, in a coordinate system with the dish at the origin and the unit vectors i and j in the horizontal and vertical directions. (to the right and up)

9. If a passenger vehicle travels in a circular path at too high a speed, it can tip over. The image below shows a vehicle beginning to tip over. A group of students investigated the speed at which a passenger vehicle will begin to tip over by using a remote- control toy car. The students drove the car around circular paths of various known radii, at such a speed that it was just starting to tip for each radius. They timed the period of the cars motion and used the period to calculate the 'tipping speed' (the speed at which the toy car begins to tip over) of the car. The graph below shows the data collected by the students: Speed at which toy car begins to tip over (m s'¹') 14 12 10 8 TESTO 0 2 3 Radius (m) 5 6 7 Page 11

In the figure at the right is shown three graphs of the shapes of the same taut elastic string in three different circumstances, labeled A, B, and C. In some of the problems below, the string represents a guitar string, tied down at both ends, while in others, it is part of a very long telephone wire whose ends are not shown. Be careful to note which is which for each problem! The string is light enough that the effects of gravity can be ignored. In each case, the bit of string at the position x = 23 cm is painted blue. 4. Suppose that graph C represents part of a long wire, under tension, and is showing a left traveling wave at a particular instant. What can you say about the velocity of the blue bead in case C at the instant shown? a. It is upward. b. It is downward.     c. It is 0. d. You can’t say anything from the information given. 5. Suppose that graph C represents part of a long wire, under tension, and is showing a left traveling wave at a particular instant. What can you say…