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Physics, 19.10.2019 21:10 hdolly81

Aboy is pulling a wagon with a force of 70.0 n directed at an angle of 30 degrees above the horizontal. what are the x and y components of this force? (1 point)
x component - 60.60 n, y component - 35 n
x component - 45 n, y component - 10 n
x component - 22.65 n, y component - 28.9 n
x component - 89 n, y component - 15.70 n

use newton's third law to explain how you can walk forward (1 point) when you walk, you use your legs to apply a force, you accelerate forward when you walk, you push yourself with a force, changing your velocity when you walk, you overcome your inertia, allowing you to accelerate when you walk, you push the earth back. the earth in turn, pushes you forward a 75,000 n weight truck hits the rear bumper of the 15,000 n weight car at a stop light. what is the ratio of the collision force the truck puts on the car compared to the force the car puts on the truck? (1 point) 5: 1 2: 1 3: 1 1: 1 what is the difference between a contact force and a field force? (1 point)

a contact force requires two objects to be touching, a field force works at a distance a contact force requires two objects to be touching, a field force requires a magnetic field to work

a contact force works at a distance, a field force requires objects to be close to each other there is no difference between contact and field force a basketball with a mass of 1.5 kg is thrown with a force of 21 n at an angle of 60 degrees above the horizontal. what is the vertical acceleration caused by this force? (1 point) 10.56 m/s^2 upwards 12.12 m/s^2 upwards 12.2 m/s^2 downwards 9.91 m/s^2 downward a strong gust of wind blows an apple off a tree. the apple has a mass of 0.25 kg. the gust of wind pushes the apple with a force of 1.05 n to the right. what is the net force on the apple? (1 point) 5.5 n - 2.2 n 1.78 n 2.66 n a soccer ball is kicked with a force of 13.5 n to the right. the ball accelerates to the right at a rate of 6.5 m/s^2. what is the mass of the ball? (1 point) 1.58 kg 2.08 kg 6.01 kg 3.31 kg if a person weighs 900 n on earth, then that same person is recorded to weigh 2125 n on planet x, what is the acceleration due to gravity of planet x? (1 point) 40.98 m/s^2 5.78 m/s^2 23.16 m/s^2 33.09 m/s^2 define newton's second law (1 point) when an object puts a force on another object, the second object puts a force back on the first, equal in magnitude but opposite in direction the total energy through any process is conserved objects tend to keep their motion unless acted upon by an unbalanced outside force fnet = ma a boat has a mass of 31,999 kg and a plane has a mass of 110,000 kg. what is the ratio of weight of the plane to the boat? (1 point) 3.44 : 1 2.14: 1 9.96: 1 20.12: 1 an elevator accelerates upwards at an acceleration of 2 m/s. the mass of the elevator is 3500 kg. what is the tension in the elevator cable? (1 point) 3500 n 41,335 n 16,823 n 10,091 n a block slides on a frictionless surface. the block is given a 25 n force to the right and it accelerates at a rate of 3.5 m/s^2 to the right. this block is then placed on a frictionless surface on jupiter and given a force of 15 n. what is the acceleration on the block? (1 point) 1.7 m/s^2 8.9 m/s^2 4.3 m/s^2 2.1 m/s^2 define the concept of inertia (1 point)
the property of an object to change its energy the property of an object to keep moving at its current speed and in its current direction the property of an object to have its motion changed by an outside force
the property of an object to experience the same force it applies to another object what amount of force is needed to propel and object of 27 kg to an acceleration of 11,550 m/s^2? (1 point) 311,850 n 257,100 n 119,054 n 398,677 n

a briefcase sits stationary in an elevator. the mass of the briefcase if 4.5 kg. the elevator then begins accelerating upwards at 1.10 m/s^2. what is the normal force on this briefcase during this acceleration? (1 point) 44.155 n 38.971 n 51.141 n 48.985 n

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