Answer:
Hello your question has some missing parts attached below is the missing part
Answer :
- Caused severe damage ( 7 ) ----- E
- Furniture moves ( 5 ) -------- G
- May not be felt ( 2 ) ---------- F
- Felt by most people ( 4 ) --------- D
- widespread destruction ( 8 up ) ------ B
- lead to a lot of damage ( 6 ) -------- A
- Felt little by people ( 3 ) ---------- C
Explanation:
Matching the Richter magnitude indicated in column A with the Earthquake effect found in column B
- Caused severe damage ( 7 ) ----- E
- Furniture moves ( 5 ) -------- G
- May not be felt ( 2 ) ---------- F
- Felt by most people ( 4 ) --------- D
- widespread destruction ( 8 up ) ------ B
- lead to a lot of damage ( 6 ) -------- A
- Felt little by people ( 3 ) ---------- C
Answer:
153.9 g/mol
Explanation:
The freezing point depression for an ideal solution is given by the expresion:
ΔTf = Kf m
where:
ΔTf is the freezing point depression
Kf is the freezing constant of the solvent
m is the molalility which mol of solute per kilogram solvent
The moles of solute is the mass divided into its molecular weight, MW
substituting into the equation, we have:
4.49 º C = 6.91 ºC/m x [(1.0 g/MW) / 0.010 kg]
4.49 º C = 6.91 ºC/mol/kg x [(1.0 g/MW) / 0.010 kg]
⇒4.49 = 691 g/mol/MW
⇒ MW = 691 / 4.49 g/mol = 153.9 g /mol
Answer:
Explanation:
(a)
Magnitude of =
= 4.47 m
Let θ be the direction of vector D
θ = 63.44°
(b)
Magnitude of =
= 8.485 m
Let θ be the direction of vector D
θ = 135°
The time in air is determined by the initial vertical velocity. This is because, the steeper the launch angle the larger the vertical velocity component, that causes the launch angle to increase the time in air.
I did Physics a while ago but I believe my answer is correct. (:
Hope this helps! (:
Answer:
Kinetic energy,
Explanation:
It is given that,
Mass of ball, m = 0.9 kg
It is dropped form a height of 7 m, h = 7 m
When the ball is at certain height it will have only potential energy. As it hits the ground, its potential energy gets converted to kinetic energy as per the law of conservation of energy.
So,
So, the kinetic energy when it hits the ground is 61.74 Joules.