placing a magnetically hard material in a strong magnetic field
<span>The correct answer is option C. i.e.Equilateral triangles. All equilateral triangle have equal sides. Due to this these set of shapes will always be similar. Similarity in the sense that only the size of the triangles can change to large or smaller but the shape will be be similar always.</span>
The bulbs will produce lesser light than their capacity, In short they will be dimmer because the the energy will get divided in the number of bulbs.
Answer:
At an angle of ![30^{\circ}](https://tex.z-dn.net/?f=30%5E%7B%5Ccirc%7D)
Explanation:
Assume the river flows from East to West so for the swimmer to cross across it, assume he crosses it from West to East.
The resultant speed will be given by
![R= \sqrt {10^{2}-5^{2}=\sqrt {75}\approx 8.66 km/h\\Direction=sin^{-1}\frac {5}{10}\approx 30^{\circ}](https://tex.z-dn.net/?f=R%3D%20%5Csqrt%20%7B10%5E%7B2%7D-5%5E%7B2%7D%3D%5Csqrt%20%7B75%7D%5Capprox%208.66%20km%2Fh%5C%5CDirection%3Dsin%5E%7B-1%7D%5Cfrac%20%7B5%7D%7B10%7D%5Capprox%2030%5E%7B%5Ccirc%7D)
Information that is given:
a = -5.4m/s^2
v0 = 25 m/s
---------------------
S = ?
Calculate the S(distance car traveled) with the formula for velocity of decelerated motion:
v^2 = v0^2 - 2aS
The velocity at the end of the motion equals zero (0) because the car stops, so v=0.
0 = v0^2 - 2aS
v0^2 = 2aS
S = v0^2/2a
S = (25 m/s)^2/(2×5.4 m/s^2)
S = (25 m/s)^2/(10.8 m/s^2)
S = (625 m^2/s^2)/(10.8 m/s^2)
S = 57.87 m