Slow moving vehicles that travel at a sped less than 25 MPH will have ...........
Slow moving vechicles [SMV] are those vehicles that travel on the road at a speed that is less than the recommended speed, example of a slow moving vehicle is tractor. These vehicles must have SMV signs on them to notify other drivers that they would not be travel fast.
Answer:
The magnitude of the electric field is 3.8 × 10⁵⁸ N/C and it is in the negative x- direction.
Explanation:
From work-kinetic energy principles, the kinetic energy change of the proton equals the work done by the electric field.
So, ΔK = W
1/2m(v₂² - v₁²) = qEd where m = mass of proton = 1.673 × 10⁻²⁷ kg, v₁ = initial speed of proton = 3.5 × 10⁶ m/s, v₂ = final speed of proton = 0 m/s, q = proton charge = + e = 1.602 × 10⁻¹⁹ C, E = electric field and d = distance moved by proton = x₂ - x₁ , x₁ = 20 cm and x₂ = 80 cm. So, d = 80 cm - 20 cm = 60 cm = 0.6 m
1/2m(v₂² - v₁²) = qEd
E = (v₂² - v₁²)/2mqd
substituting the values of the variables into E, we have
E = ((0 m/s)² - (3.5 × 10⁶ m/s)²)/(2 × 1.673 × 10⁻²⁷ kg × 1.602 × 10⁻¹⁹ C × 0.6 m)
E = - 12.25 × 10¹² m²/s² ÷ 3.22 × 10⁻⁴⁶
E = -3.8 × 10⁵⁸ N/C
So, the magnitude of the electric field is 3.8 × 10⁵⁸ N/C and it is in the negative x- direction.
Assume a 2D plane and both the birds start at origin. +X is east, -X is west, +Y is North, -Y is South.
So, after travel position of bird1 is (-2.8, 2.7) and bird2 is (-2.7,2.8);
slope of bird1 is 2.8/2.7
slope of bird2 is 2.7/2/8
Now we have two solpes b1 and b2
formula = (b2-b1)/(1+b1*b2);
Only velocity uses direction of travel in its calculations.
As the distance between two charged objects increases, the strength of the electrical force between the objects <em>decreases</em>.