An experiment is conducted on a long straight wire of diameter d. a constant current is sent through the wire and the magnetic field on the surface of the wire is measured to be b1. the experiment is then repeated with the same current but with a wire of diameter 2d. the magnetic field measured on the surface of this second wire will be which of the following? a. b1 b. b1 / 4 c. 4b1, d. b1 / 2

Which describes an object in projectile motion? check all that apply.a.gravity acts to pull the object downb.the object moves in a straight path.c.the forward velocity of the object is 0 m/s.d.the object’s inertia carries it forward.e.the path of the object is curved.

Boiling water is an example of physical change. true or false

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