How many neutrons does element X have if its atomic number is 39 and its mass number is 79?

A plane is flying east at 135 m/s. The wind accelerates it at 2.18 m/s2 directly northeast. After 18.0 s, what is the direction of the displacement of the plane?

Which are characteristics of a healthy relationship? Check all that apply. mutual respect and trustcontrol and manipulationjealousy and distrustgenuine affection separate identities open communication

Regions around an atom where electrons are orbiting whAt atom structure is this

Two cylindrical solenoids, A and B, each have lengths that are much greater than their diameters. The two solenoids have the same density of turns in their windings.

A baseball 0.145kg is thrown vertically upwards with an initial velocity of 20m/s. Use the law of conservation of energy to find how high it goes ignoring air resistance.

As stream velocity decrease, which factor will likely increase? A) erosion of the stream bank B) deposition of material in the stream C) amount of material carried downstream D) size of the particles carried downstream

What cells in the nervous signals travel through the nervous system

A mechanic pushes a 3.60 ✕ 103-kg car from rest to a speed of v, doing 5,130 j of work in the process. during this time, the car moves 21.0 m. neglecting friction between car and road, find v and the horizontal force exerted on the car.

Anika asks Eva to roll a basketball and then a bowling ball to her. Which requires more force to roll, and why?

Why does a buoyant force act on every object in a fluid? Pressure pushing up on the bottom of the object is greater than the pressure pushing down on the top.