Weight: it is the gravitational pull applied on a body by the earth’s surface
Mass: it is the amount of matter present
Answer:
10. B. 30 kg.m/s
16. B. Elastic collision
20. Velocity
Explanation:
10. Momentum is simply the product of mass and velocity of an object. So it can be soved with the equation:
p = mv
Where:
p = momentum (kg.m/s)
m = mass (kg)
v = velocity (m/s)
Your problem gives you the following:
m = 15 kg
v = 2 m/s
p =?
So just fill in what you know:
p = mv
p = (15kg)(2m/s) = 30 kg.m/s
16. Elastic collision occurs when two objects collide and no loss in energy occurs after collision. Supposing that the balls are very bouncy, let's say they bumped into each other and they bounce-off of each other. If there is no loss in speed on both ends, that means that this is an elastic collision.
20. To differentiate vector and scalar quantity, just remember that vectors have direction. Both quanitites show magnitude, but vector quantities indicate the direction the magnitude is going. Among all the choices, it is only velocity that is considered as a VECTOR quantity.
To summarise the findings, in 2012, there is a significant and positive relationship between higher education level and income (i.e., higher education qualifications lead to higher income). ... Next, we examine the incomes of between bachelor's degree and graduate degree holders.
Answer:
The difference in these is that the ovary of a fruit can be edible which forms to enclose around seeds while a tree grows up to have a different structure and means of reproduction/
Explanation:
Answer:
I would say B
Explanation:
the other ones don't seem right
