Answer:
The energy stored is: 62.5 Joules
Explanation:
Given
--- spring constant
--- stretch
Required
The amount of energy
This is calculated as:
Answer:D) Egocentrism
Explanation:
Mr.Tong should be alerted to Piaget's concept of Egocentrism which is under the pre operational stage of Piaget's theory.
Following are the key features of Pre operational stage
- Centration
- Egocentrism
- Play
- Symbolic Representation
- Pretend (or symbolic) Play
- Animism
- Artificialism
- Irreversibility
The feelings and actions of children are usually self-centered. Egocentrism refers to the failure of the child to see a situation from another person Perception.
The self-centered child believes that other people see, hear, and feel exactly the same as the child does, according to Piaget.
Here Also 5 year old daughter does not think about her father and ask question blatantly
Answer:
d. 149 ⁰C.
Explanation:
Given;
mass of the block of ice, m = 2 kg
specific heat capacity of the ice, C = 2090 J/(kgK)
initial temperature of the ice, t₁ = -90 ⁰C
heat added to the ice, H = 1,000,000 J
let the final temperature of the ice = t₂
The final temperature of the ice after adding the heat is calculated as follows;
Therefore, the new temperature of the water is 149 ⁰C.
Answer:
(a) V1 = 8990.00 V
V2 = 8960.13 V
Explanation:
Parameters given:
q =3 mC
k = 8.99 * 10⁹ Nm²/C²
x1 = 3 m
x2 = 3.01 m
Electric potential is given as:
V = kq/r
Where
k = Coulombs constant
q = charge
r = distance
Potential at x1 is:
V1 = (8.99 * 10⁹ * 0.000003)/(3)
V1 = 8990.00V
Potential at x2 is:
V2 = (8.99 * 10⁹ * 0.003)/(3.01)
V2 = 8960.13 V
Oxygen is on the Periodic Table of Elements as a member of the chalcogen group. It is a chemical element represented by the symbol O.
B would've also been a right answer if it weren't for the Dioxide part.
But the answer is C. Oxygen.
