Answer:
C) either depending on her running direction
Explanation:
The following information is given in the question
katelyn runs at 8 m/s
her speed relative to the floor is 3 m/s
Based on the above information
Now her speed relative with respect to an observe for the rest on the ground would be based on her running direction that means in which direction she is running
Therefore the option c is correct
Answer:
The time constant is 76.92 sec.
Explanation:
Given that,
Mass of bob = 1.00 kg
String length=1.00 m
Time = 25.0 s
Suppose we need to calculate the numerical value of the time constant τ.
We need to calculate the numerical value of the time constant τ
Using formula of time constant
Put the value into the formula
Hence, The time constant is 76.92 sec.
A centre - seeking force related to acceleration is centripetal force.
Sunspot. Sunspots are temporary cooler areas on the Sun's surface caused by changes in its magnetic field.
Answer:
K = 1.29eV
Explanation:
In order to calculate the kinetic energy of the proton you first take into account the uncertainty principle, which is given by:
(1)
Δx : uncertainty of position = 2.0pm = 2.0*10^-12m
Δp: uncertainty of momentum = ?
h: Planck's constant = 6.626*10^-34 J.s
You calculate the minimum possible value of Δp from the equation (1):
The minimum kinetic energy is calculated by using the following formula:
(2)
m: mass of the proton = 1.67*10^{-27}kg
in eV you have:
The kinetic energy of the proton is 1.29eV