Earth's gravity attempts to change the velocity of all objects on earth's surface toward at a rate of 9.8 meters per seconds squared.

Earth's gravity attempts to change the velocity of all objects on Earth's surface toward CENTER OF EARTH at a rate of 9.8 meters per seconds squared.

Explanation:

As we know that the gravitational force of Earth is towards the center and it is given by the formula

this is the force experienced by all the objects near the surface of Earth and this force is towards the center of the Earth

So this is also know as gravity of Earth

Now we know that the acceleration of objects near the surface of Earth is given by the equation

this is also known as acceleration due to gravity and this is of magnitude g = 9.8 m/s/s

so all objects will move towards the center of earth with rate of change in velocity of 9.8 m/s/s

i need the answer to this too but idk it ; -;

a solenoid is created by wrapping a l = 90 m long wire around a hollow tube of diameter d = 4.5 cm.   the wire diameter is d = 0.9 mm.   the solenoid wire is then connected to a power supply so that a current of i = 9 a flows through the wire.

randomized variablesl = 90 m

d = 4.5 cm

d = 0.9 mm

i = 9 a                                          

write an expression for the number of turns, n, in the solenoid. you do not need to take into account the diameter of the wire in this calculation.

calculate the number of turns, n, in the solenoid.

write an expression for the length of the solenoid (l2) in terms of the diameter of the hollow tube d.

calculate the length of the solenoid (l2)   in meters.

calculate the magnitude of the magnetic field at the center of the solenoid in teslas.

explanation: