Which have the same velocity? A, a boy walking east at 2 km/h and a man
walking east at 4 km/h
B. a car standing still and a truck driving in a
circle at 4 km/h
C. a dog walking west at 3 km/h and a cat
walking west at 3 km/h
D. a girl walking west at 3 km/h and a boy
walking south at 3 km/h

r=rho l/a where a is the area, l is the length and rho is resistivity so the greater the area the lesser the resistance thats why the earth pin is thicker bcos current follow the shortest path, so less resistive .

answer:   you might love summer weather, but you don’t want it to feel like the sun is inside your car. but a hot car that just won’t seem to cool down might be a bigger of a problem than you think. your car relies on being at the right temperature.

explanation:

real, smaller and upside-down.   so the answer should be b.

energy stored in the capacitor= 9.72 x 10⁻⁴ j

explanation:

the energy stored in the capacitor is given by

e= 1/2 c v²

e= energy stored

c= capacitance= 1.5 µc= 1.5 x 10⁻⁶f

v= potential difference=36 v

so energy stored= e= 1/2 (1.5 x 10⁻⁶) (36)²

energy stored= 9.72 x 10⁻⁴j