Answer:
a magnet and sifter
Explanation:
a magnet will get all the iron filling and the sifter will separate the powder and sand
Answer:
Leak 1 = 3.43 m/s
Leak 2 = 2.42 m/s
Explanation:
Given that the top of the boot is 0.3 m higher than the leaks.
Let height H = 0.3m and the acceleration due to gravity g = 9.8 m/s^2
From the figure, the angle of the leak 1 will be approximately equal to 45 degrees. While the leak two can be at 90 degrees.
Using the third equation of motion under gravity, we can calculate the velocity of leak 1 and 2
Find the attached files for the solution and figure
Answer: check explanation.
Explanation:
The acceleration of the system means the acceleration of the centre of mass of the system. So, let's take a quick look at the first two laws of Newton.
Newton's first law states that any object at rest that is not acted upon by outside forces will remain at rest, and that any object in motion not acted upon by outside forces will continue its motion in a straight line at a constant velocity. This laws seems to be at odd with our everyday lives. Let's take a look at the his second law.
Mathematically, the second law can be represented as; F=Ma. The law states that object will accelerate in the direction of the net force.
In order to know the acceleration of attached objects attached to a pulley we need to consider the system of objects as one object, followed by measuring the effect of the net external forces with respect to the ratio of the total mass of the system.
Answer:
A greater period.
Explanation:
The period of a simple pendulum is represented by the following formula:
Where:
- Length of the pendulum
- Gravity constant
Given that gravity constant in the Moon is less than on Earth, period shall be greater.
Answer:
increases the base area of the jug
increase the base weight
Explanation:
this helps lower the center force of gravity thus increases stability