Answer:
physical change
Explanation:
Physical change are changes affecting the form of a chemical substance, but not its chemical composition. Examples of physical change: melting, freezing, shape, size, color...
Answer:
The position after 3 minutes is - 800 m.
Explanation:
speed, v = 100 m/s
time, t = 3min = 180 s
initial position, x = 1000 m
let the distance traveled in 3 minutes is d
d = 100 x 180 = - 18000 m
So, the position is
= - 18000 + 1000 = - 800 m
To solve this problem we will apply the concepts related to energy conservation. We will start by defining the expressions of the electric potential energy for a given charge (and for the electron). With this we can apply the conservation of kinematic energy. Our values are given as
The potential energy:
Here,
q = Charge
V = Voltage
Or specifically for an electron we can define it as,
Here,
e = Charge of electron
V = Voltage
Applying the energy conservation equations we have that the kinetic energy must be equivalent to the electric potential energy,
Here
v = Velocity
m = Mass
Rearranging,
Replacing,
For each electron the velocity is,
Therefore the velocity of the electron is
I think it most likely burn since th metal tube is going to transfer so much heat
Answer:4.04 m
Explanation:
mass of athlete
initial speed
To get the maximum height h of Athlete we conserve energy i.e.
Kinetic Energy of Athlete=Potential energy gained by athlete
(b)Speed at half of maximum height
Considering v be the velocity at half of maximum height
conserving Energy we can write
(as )
thus
So Athlete interact with the gravitational Field of Earth