can you please help me with these questions?

thank you so much

You have the following workspace in MATLAB: Workspace Name Value eccentricity 2.8300e-04 grav_const 6.6730e-11 inclination 28.4700 mass_Earth 5.9720e +24 orbit_period 95.4320 radius_Earth 6378000 semi_major 6917100 spacecraft_loc 6918900 spacecraft_vel 7.5883e+03 In the box below, fill in the exact command necessary to delete the variable spacecraft_vel from the workspace without deleting any other variables clear spacecraft_vel A Question 2 (1 point) In MATLAB, you are calculating friction forces on five rail materials for a comparison study. One variable you must define is the time traveled on the aluminum rail. Which of the following are appropriate, descriptive variable names that could be used for this variable? Select all that apply. timeAl alum_time t Alt aluminum O time Question 4 (1 point) You have data from a projectile launch test and need to assign the data to MATLAB variables. Select variable name(s) for this task that will NOT overwrite MATLAB built-in functions. altitude yaw alpha times min max Question 5 (1 point) Which of the following variable names would MATLAB allow you to use when defining a variable? Select all that apply. grav_constant lengthMM 2nd force time-to-launch measurement #3 function