25. What is mass?
a. a force that resists motion
b. the amount of matter in an object
c. another word for matter
d. the amount of space that an object fills
24. A cow's mass is 410 kg and a car's mass is 565 kg. What is the difference between their weights?
23. What is weight?
22. A worker with spikes on his shoes applies a constant horizontal force of 20 N to push a 40-kg box across a frictionless, frozen lake. What is the acceleration of the box?
25. the amount of matter in an object
24. 155 N
23. Weight of a body = mass of the body * acceleration due to gravity
24. F = ma
so a = f/m = 20/40 = 0.5 m/s^2
Please let me know if you have any questions and best me if you are satisfactory.
these are the answer choices for #23
a. Weight is a measure of the amount of space an object occupies.
b. Weight is a measure of the force on an object due to gravity.
c. Weight is a measure of the amount of matter in an object.
d. Weight is a measure of the amount of inertia an object has
Weight is a measure of the force on an object due to gravity.
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