Explanation:
It is given that,
Mass of concrete pilling, m = 50 kg
Diameter of wire, d = 1 mm
Radius of wire, r = 0.0005 m
Length of wire, L = 11.2
Young modulus of steel,
The young modulus of a wire is given by :
So, the wire will stretch 0.034 meters. Hence, this is the required solution.
A component of an object moving at a certain velocity can be split into its x and y components (sometimes there is a z component too, but in the case of a question like this, we can imagine the plane the helicopter is travelling in to be 2 dimensions).
Therefore, we can draw a triangle - the hypotenuse having length 86 and being 35 degrees from the ground.
Since the angle ACB (assuming A to be bottom left and B to be top) is a right angle, we can now work with trigonometry:
Sinx = opp/hyp and Cosx = adj/hyp which will give us the components of the vector. Substituting the known values into the equations and rearranging:
86Sin(35) = Opp = 49.3km/h
86Cos(35) = Adj = 70.4km/h
Therefore, the horizontal component (Ax) is 70km/h and the vertical component (Ay) is 49km/h
So what you wanna do is take your two givens. 22 and 3. Now you wanna take 22 and divide that by 3. And that gives you 7.33. Now if your answer HAS to be a whole number it'll be 66.
All i see is a white screen? maybe it’s my phone? orr
Answer:
The magnitude of the magnetic field is 0.83 T
Explanation:
Given :
Speed of electron inside television tube (<em>v</em>) = ×
Radius of electron moving path () = ×
According lorentz force in magnetic field is,
∴ ×
Where, = charge of electron, = speed of electron, = magnetic field and
= force on electron.
when electron is moving in circular orbit the force is given by,
∴
so we equate above both equation.
∴ ×
∴
∴ ××××××
∴ 0.83 Tesla
Therefore, the magnitude of the magnetic field is 0.83 T.