Significant think why scientists presently accept is the key factor in moving information from short term memory is to deliver more the data which is rehashed or utilized, the more probable it is to end up in long-term memory.
<u>Explanation:</u>
Short-term memory (STM) envelops psychological capacities for the capacity, support, and mental control of data that is never again present in the tactile condition. So the Magic number 7 (give or take two) gives proof to the limit of transient memory.
Most grown-ups can store somewhere in the range of 5 and 9 things in their transient memory. It enables the apparent thing important to be changed over into a development that can be put away inside the brain, and afterward reviewed later from the present moment or long-term memory.
Explanation:
A positive point charge Q is fixed on a very large horizontal friction less tabletop. A second positive point charge q is released from rest near the stationary charge and is free to move.
As per the law of conservation of energy the change in kinetic energy is equal to the change in potential energy.
The mathematical expression for the conservation of energy is given by :
On solving the above equation, we get the value of v as :
In the above expression, as the term increase, as increases, the value of decreases. So, the correct option is (B) "As it moves farther and farther from Q, its speed will increase".
The answers are the following:
1. encouraging them to act and unite
2. valiant and courageous
(a) The momentum of the proton is determined as 5.17 x 10⁻¹⁸ kgm/s.
(b) The speed of the proton is determined as 3.1 x 10⁹ m/s.
<h3>
Momentum of the proton</h3>
The momentum of the proton is calculated as follows;
K.E = ¹/₂mv²
where;
- m is mass of proton = 1.67 x 10⁻²⁷ kg
- v is speed of the proton = ?
<h3>Speed of the proton</h3>
v² = 2K.E/m
v² = (2 x 50 x 10⁹ x 1.602 x 10⁻¹⁹ J)/(1.67 x 10⁻²⁷)
v² = 9.6 x 10¹⁸
v = 3.1 x 10⁹ m/s
<h3>Momentum of the proton</h3>
P = mv = (1.67 x10⁻²⁷ x 3.1 x 10⁹) = 5.17 x 10⁻¹⁸ kgm/s
Learn more about momentum here: brainly.com/question/7538238
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The force between two charged particles is an electrostatic force. The intensity of this force is given by the following formula:
Where q1 and q2 are charges r is the distance, and k_c is Coulomb's constant.
Coulomb's constant has the value of:
When we plug all the given values into the formula we get:
Negative sign means that force is attractive.