A forward force acting on the axle accelerates a rolling wheel on a horizontal surface. If the wheel does not slide the frictional force of the surface on the wheel is: Group of answer choices zero in the forward direction and does zero work on the wheel in the forward direction and does positive work on the wheel in the backward direction and does zero work on the wheel in the backward direction and does positive work on the wheel

The inner planets or call terrestrial because they

An astronaut floating in space is trying to use her jetpack to get back to her space station, but she is being pulled away by a nearby planet, as shown in the image below. her jetpack provides a constant thrust of 310 n. if she angles her jetpack in such a way that it cancels out the vertical force due to the planet's gravity, what is her net horizontal force? thaud 487 o a. 54.8 n toward the space station o b. 212.9 n toward the space station o c. 185.2 n toward the space station o d 956 n toward the space station

Why do metals "give up" their valence electrons?