Answer:
Explanation:
I can use insulated materials to cover the doors, windows and floors or I use quilted blankets to cover the doors, windows and the floor, this will reduce the sound coming in the room and the sound escaping out of the room.
I can possibly use carpet or floor mats on the floor, especially in front of the door to cover the crack that may be underneath it.
Answer:
Writing reactants on the left, and the products are written on the right
Explanation:
Answer:
6.4 Joules
Explanation:
For springs, Hooke's law states that;
F = ke
where F is a force applied, e is the extension and k is the spring constant.
Work done in a spring is the same as the potential energy stored in the spring. So that;
Work done = k
e = -
= 4 cm = 0.4 m
= 0
So that,
- = 0.4 m
Thus,
Work done = x 80 x
= 40 x 0.16
= 6.4
Work done = 6.4 J
The work done by the force on the spring is 6.4 Joules.
Answer:
B
Explanation:
Look for the one with an x coordinate of two .... answer B
Answer:
Explanation:
= Initial pressure =
= Initial volume
= Final volume =
Temperature is the same in the initial and final state
From the ideal gas law we have
The final pressure of the system is .