An electric wire in the wall of a building carries a dc current of 25 a vertically upward. what is the magnetic field due to this current at a point 10 cm due northof the wire

It's a snowy day and you're pulling a friend along a level road on a sled. you've both been taking physics, so she asks what you think the coefficient of friction between the sled and the snow is. you've been walking at a steady 1.5m/s, and the rope pulls up on the sled at a 32 ∘ angle. you estimate that the mass of the sled, with your friend on it, is 65 kg and that you're pulling with a force of 80 n .

Avehicle accelerates from 0 to 30 m/s in 10 seconds on a straight road

When you hold a rectangular object, how does the area of the side that is resting on your hand affect the pressure and the force that the object exerts?