Answer:
26.82m/s
Explanation:
Given
Mass = m= 0.4kg
Initial Velocity = u = 0
Charge = 4.0E-5C
Distance= d = 0.5m
Object Charge = 2E-4C
First, we'll calculate the initial energy (E)
E = Potential Energy
PE = kQq / d
Where k = coulomb constant = 8.99E9Nm²/C²
Energy is then calculated by;
PE = 8.99E9 * 4E-5 * 2E-4 / 0.5
PE = 143.84J
Energy = Potential Energy = Kinetic Energy
K.E = ½mv² = 143.84J
½mv² = ½ * 0.40 * v² = 143.85
0.2v² = 143.85
v² = 143.85/0.2
v² = 719.25
v = √719.25
v = 26.81883666380777
v = 26.82m/s
Hence, the object is 26.82m/s fast when the cart moving is very far (infinity) from the fixed charge
let me correct you , You miss typed "2-" its actually "-2"
scalar
diagonal
vector
A quantity that has magnitude only is a scalar. In Physics, a quantity with only magnitude is called a scalar. Scalar quantities include distance, speed, mass, temperature, and energy. They are distinguished from vectors which have both magnitude and direction.
A scalar is a fundamental concept in mathematics and physics, representing a single quantity with magnitude but no direction. Scalars are characterized solely by their numerical value, such as speed or temperature. Unlike vectors, which have both magnitude and direction, scalars are concerned with the "how much" rather than the "where" or "in which direction." Scalars are used in various fields, from physics to mathematics and engineering, simplifying the description of quantities that don't involve direction, making calculations and analysis more straightforward.
A quantity that has magnitude only is referred to as a scalar. In Physics, quantities are typically classified into two types: scalars and vectors. A scalar quantity is defined by its magnitude alone, with no direction associated with it. Examples of scalar quantities include distance, speed, mass, temperature, and energy. On the contrary, a vector has both magnitude and direction. Hence, the correct answer to your question is scalar.
Learn more about Scalar here:
#SPJ6
Answer:
scalar
Explanation:
b) Compute the initial kinetic energy of the bullet;(j)
c) Compute the kinetic energy of the bullet and pendulum immediately after the bullet becomes embedded in the pendulum.(j)
a. The vertical height through which the pendulum rises is equal to 0.9 cm.
b. The initial kinetic energy of the bullet is equal to 794.2 Joules.
c. The kinetic energy of the bullet and pendulum immediately after the bullet becomes embedded in the pendulum is equal to 0.883 Joules.
Given the following data:
a. To determine the vertical height through which the pendulum rises:
First of all, we would find the final velocity by applying the law of conservation of momentum:
Momentum of bullet is equal to the sum of the momentum of bullet and pendulum.
Where:
Substituting the given parameters into the formula, we have;
Final speed, V = 0.42 m/s
Now, we would find the height by using this formula:
Height = 0.009 meters.
In centimeters:
Height =
b. To compute the initial kinetic energy of the bullet:
Initial kinetic energy = 794.2 Joules
c. To compute the kinetic energy of the bullet and pendulum immediately after the bullet becomes embedded in the pendulum:
Kinetic energy = 0.883 Joules.
Read more: brainly.com/question/20693852
Answer:
a) h = 0.0088 m
b) Kb = 794.2J
c) Kt = 0.88J
Explanation:
By conservation of the linear momentum:
By conservation of energy from the instant after the bullet is embedded until their maximum height:
h=0.0088m
The kinetic energy of the bullet is:
The kinetic energy of the pendulum+bullet:
B. Glaciers
C. Moving water
D. Human actions
Which is not a cause of weathering?
A. well I wouldn't say wind because wind is a part of what happens with tornadoes
B. It would be glaciers because they stand alone unless wind or something takes responsible action for it to happen. So it takes either some other thing for it to happen like water and a really cold temperature.
C. Moving water is like rain so it would be a type of climate so it would not be the answer to what is not a main cause of weathering.
D. human actions is a cause for weathering because you can put a box of melted ice cream in a freezer and it will be frozen again.
To make this less confusing I would say it is B. Glaciers because glaciers cannot cause weather to happen.
~QueenBeauty666~
B. Glaciers
a would not do because wind does a lot of weather damage
c would not do because moving waters cause hurricanes
d would not do because humans cause acidic rain