Answer:v=7.46 m/s
Explanation:
Given
mass of stone=0.7 kg
Length of string=0.6 m
Maximum tension in string T=65 N
Tension will Provide centripetal force i.e.
Answer:
The speed is
Explanation:
Electric field magnitude (E) and electric force magnitude (F) are related by the equation
with q the charge of the proton (). Because between parallel plates electric field is almost constant, electric force is constant too:
because electric force is constant, then by Newton's second law acceleration (a) is constant too, it is:
with m the mass of the proton ():
Now with this constant acceleration we can use the kinematic equation
with v the final speed, the initial velocity that is zero (because proton starts at rest) and d is the distance between the plates, so:
Answer:
30.63 m
Explanation:
Using y = ut + 1/2gt² where u = initial speed of block = 0 m/s, g = acceleration due to gravity = 9.8 m/s² and t = time of fall = 2.5 s and y = height of fall.
So, substituting the values of the variables into the equation, we have
y = ut + 1/2gt²
y = 0 m/s × 2.5 s + 1/2 × 9.8 m/s² × (2.5 s)²
y = 0 m + 4.9 m/s² × 6.25 s²
y = 0 m + 30.625 m
y = 30.625 m
y ≅ 30.63 m
So, the brick fell 30.63 m
Answer:
True
Explanation:
Heavier objects (objects with more mass) are more difficult to move and stop. Heavier objects (greater mass) resist change more than lighter objects. Example: Pushing a bicycle or a Cadillac, or stopping them once moving. The more massive the object (more inertia) the harder it is to start or stop.