Take this only if you can finish it within 30 minutes and just answer the question only not steps please answer

Question 13 (1 point) Forces of 3.6 N and 1.5 N act on an object in opposite directions to one another. What is the magnitude of a third force acting on the same object so that it remains stationary? 5.1 N 21 N 42 N 27 N O9.ON Question 14 (1 point) I wo ropes are used to lift a 2.5x10 kg beam with a force of gravity of 1.47x108 N [down] acting on it. One rope exerts a force of tension of 1.8x10 N [up 30.0 left] on the beam, and the other rope exerts a force of tension of 1.8 x10 N [up 30.0 right] on the beam. Calculate the acceleration of the beam.1/3 F 1/5 F Question 8 (1 point) A crate is placed on an adjustable, inclined board. The coefficient of static friction between the crate and the board is 0.61. Calculate the value of 0 at which the crate just begins to slip. 380 160 520 O250 310 Question 9 (1 point) A block of mass 4m can move without friction on a horizontal table. This block is attached to another block of mass m by a string that passes over a frictionless pulley. If the masses of the string and the pulley are negligible, what is the magnitude of the acceleration of the descending block?310 Question 9 (1 point) A block of mass 4m can move without friction on a horizontal table. This block is attached to another block of mass m by a string that passes over a frictionless pulley. If the masses of the string and the pulley are negligible, what is the magnitude of the acceleration of the descending block? 4m m g/5 9/4 g/3 29/3 Og Question 10 (1 point) Why is it so much more difficult to get a heavy table to startQuestion 12 (1 point) A 60 kg man stands in an elevator. Calculate the force that the floor exerts on him when the elevator starts moving upward with an acceleration of 3.0 m/s2. 408N [up] 408N [down] 768N [up] 768N [down] 650N [down] Question 13 (1 point) Forces of 3.6 N and 1.5 N act on an object in opposite directions to one another. What is the magnitude of a third force acting on the same object so that it remains stationary? 5.1 N