There are two of them:
1). The mass of the object;
2). The net of all forces acting on the object.
As soon as you know these two things, you have everything
you need to know to determine the object's acceleration.
Answer:
plug it into your calculator
Explanation:
Kinetic energy = KE = Joules = J
KE= 1/2mv^2
90,000 = 1/2 m (12^2)
180,000 = m (144)
m = 180,000 / 144
Answer:
Object should be placed at a distance, u = 7.8 cm
Given:
focal length of convex lens, F = 16.5 cm
magnification, m = 1.90
Solution:
Magnification of lens, m = -![\frac{v}{u}](https://tex.z-dn.net/?f=%5Cfrac%7Bv%7D%7Bu%7D)
where
u = object distance
v = image distance
Now,
1.90 = ![\frac{v}{u}](https://tex.z-dn.net/?f=%5Cfrac%7Bv%7D%7Bu%7D)
v = - 1.90u
To calculate the object distance, u by lens maker formula given by:
u = 7.8 cm
Object should be placed at a distance of 7.8 cm on the axis of the lens to get virtual and enlarged image.
<span>The name given to the semiconductor device that has 3 or more elements is a Transistor</span>
<h2>Answer: Temperature
</h2>
Temperature is a physical quantity that reflects the amount of heat in a body or medium. This amount of heat is related to the internal energy of a system (thermodynamically speaking), <u>according to the movement (speed) of each of the particles that compose it</u>, this means that it is related to its kinetic energy.
Therefore, the higher the kinetic energy, the higher the thermal energy in the system and the higher the temperature.