Amule is harnessed to a sled having a mass of 246 kg, including supplies. the mule must exert a force exceeding 1210 n at an angle of 30.3° (above the horizontal) in order to get the sled moving. treat the sled as a point particle.
(a) calculate the normal force (in n) on the sled when the magnitude of the applied force is 1210 n. (enter the magnitude.) n
(b) find the coefficient of static friction between the sled and the fround beneath it.
(c) find the static friction force (in n) when the mule is exerting a force of 6.05 ✕ 102 n on the sled at the same angle. (enter the magnitude.) n

An isolated conducting spherical shell carries a positive charge. part a which statement (or statements) about the electric field and the electric potential inside and outside the spherical shell is correct? which statement (or statements) about the electric field and the electric potential inside and outside the spherical shell is correct? electric potential inside the shell is constant and outside the shell is changing as 1/r2 both the electric potential and the electric field does change with r inside and outside the spherical shell electric potential inside and outside the shell is constant, but not zero electric potential inside the shell is constant and outside the shell is equal to zero electric field inside and outside the shell is constant (does not change with the position r), but is not equal to zero electric field inside and outside the shell is changing as 1/r (where r is the distance from the center of the sphere) electric field inside is equal to zero and outside the shell is constant, but not zero electric potential inside the shell is constant and outside the shell is changing as 1/r electric field inside and outside the shell is changing as 1/r2 electric field inside is equal to zero and outside the shell is changing as 1/r2 electric field inside and outside the shell is zero electric field inside is constant and outside the shell is changing as 1/r

An ionic compound can conduct electricity when a it is dissolved in water b its crystals are ground into powder c it is in solid form d it is heated to just below its melting point

Which best describes the difference between internal and thermal energy?