Answer:
17 m/s
Explanation:
Given:
Tension = 600 N
Mass of object, M= 12 kg
Radius, r = 5.78 m
Required:
Find the speed the rod will break
Here, the motor is continuously increased. To find the speed the rod will break (speed of centripetal force), we have:
Tension = Centripetal force
Where centripetal force =
Therefore,
Make v subject of the formula:
Speed the rod will break is 17 m/s.
Answer: The other product of Chadwick's nuclear reaction was carbon-12.
Explanation:
The isotopic representation of an atom is:
where,
Z = Atomic number of the atom
A = Mass number of the atom
X = Symbol of the atom
In a nuclear reaction, the total mass and total atomic number remains the same.
For the given reaction:
To calculate A:
Total mass on reactant side = total mass on product side
9 + 4= A + 1
A = 12
To calculate Z:
Total atomic number on reactant side = total atomic number on product side
4 + 2 = Z + 0
Z = 6
The isotopic symbol is
. Thus The other product of Chadwick's nuclear reaction was carbon-12.
Answer:
The change in the charge on the positve plate when the Teflon is inserted is +2.5 nC.
Explanation:
Answer:
(1).The acceleration is -24 m/s²
The total distance is 912 m.
(2). The distance traveled before it stop is 78 m.
Explanation:
Given that,
Velocity = (12-3t^2) m/s
When t = 1 s, the particle is located 10 m to the left of the origin.
We need to calculate the acceleration at t = 4 sec
Using formula of acceleration
Put the value of v
Put the value of t
The displacement from t = 0,t = 10 s, and the distance the particle travels during this time period.
We need to calculate the distance
Using formula of distance
Put the value of v
At t = 0,
At t = 10,
The displacement is
The distance at t= 2 sec
The total distance will be,
(2). We need to calculate the distance at 2 sec
Using equation of motion
Put the value into the formula
Hence, (1).The acceleration is -24 m/s²
The total distance is 912 m.
(2). The distance traveled before it stop is 78 m.