Answer:

**Answer:**

** 90 m/s**

**Explanation:**

The formula for velocity of wave in a string is given as,

v' = √(T/m') ................ Equation 1

Where v' = velocity of the string, T = Tension on the string, m' = mass per unit length of the string.

**Given: T = 4050 N, and**

**m' = m/l where m = mass of the string, l = length of the spring.**

**m = 0.5 kg, l = 1 m**

**m' = 0.5/1 = 0.5 kg/m**

Substitute into equation 1

v' = √(4050/0.5)

v' = √(8100)

v' = 90 m/s.

**Hence the velocity of the wave in the string = 90 m/s**

A rider on a bike with the combined mass of 100 kg attains a terminal speed of 15 m/s on a 12% slope. Assuming that the only forces affecting the speed are the weight and the drag, calculate the drag coefficient. The frontal area is 0.9 m2.

At what partial pressure are argon atoms expected to have a free travel of approximately 5 µm, if the gas is at a temperature of 400 K? The cross section of collision, σ, or Argon is 0.28 nm2Ar molar mass is 39.9 g/mole

A electromagnetic wave of light has a wavelength of 500 nm. What is the energy (in Joules) of the photon representing the particle interpretation of this light?

The pressure in a section of horizontal pipe with a diameter of 2.5 cm is 139 kPa. Water ï¬ows through the pipe at 2.9 L/s. If the pressure at a certain point is to be reduced to 101 kPa by constricting a section of the pipe, what should be the diameter of the constricted section? The acceleration of gravity is 9.81 m/s2 . Assume laminar nonviscous ï¬ow.

A boy flies a kite with the string at a 30∘ angle to the horizontal. The tension in the string is 4.5 N. Part A Part complete How much work does the string do on the boy if the boy stands still?

At what partial pressure are argon atoms expected to have a free travel of approximately 5 µm, if the gas is at a temperature of 400 K? The cross section of collision, σ, or Argon is 0.28 nm2Ar molar mass is 39.9 g/mole

A electromagnetic wave of light has a wavelength of 500 nm. What is the energy (in Joules) of the photon representing the particle interpretation of this light?

The pressure in a section of horizontal pipe with a diameter of 2.5 cm is 139 kPa. Water ï¬ows through the pipe at 2.9 L/s. If the pressure at a certain point is to be reduced to 101 kPa by constricting a section of the pipe, what should be the diameter of the constricted section? The acceleration of gravity is 9.81 m/s2 . Assume laminar nonviscous ï¬ow.

A boy flies a kite with the string at a 30∘ angle to the horizontal. The tension in the string is 4.5 N. Part A Part complete How much work does the string do on the boy if the boy stands still?

Ostored

O internal

O heat

Internal energy is the sum of potential and kinetic energies in the particles of a substance.

The type of energy that refers to the sum of potential and kinetic energies in the particles of a substance is **internal energy**.

Internal energy is the total energy of all the particles in a substance, including the energy associated with their motion and stored energy due to their positions or arrangements. It consists of both potential energy (energy stored in the particles' positions) and kinetic energy (energy of the particles' motion).

For example, consider a gas in a container. The internal energy of the gas would be the sum of the potential energy of the gas particles due to their positions and the kinetic energy of the particles due to their motion.

the speed at which the person falls

the change in kinetic and potential energy

the location where potential energy is zero

Answer:

the location where potential energy is zero

Explanation:

**Answer:**

Air resistance

**Explanation:**

Air resistance encountered as the person falls

Answer:

the second derivative of y with respect to time gives the transverse acceleration of an element on a string as a wave moves along an x axis along the string

Explanation:

This is because the transverse wave movement of particles take place in direction 90° to direction of movement of the wave (x) itself, so second derivative of y with respect to time (t)is what will be required

**Answer:**

**Explanation:**

If the electric field is uniform, the electric field between two points at potentials and which are separated by a distance *d* will be given by the formula:

So in our case, we have

**Answer:**

The electrostatic force between and electron and a proton is

**Explanation:**

It is given that, charge is placed at a distance from charge . The force acting between charges is given by :

We need to find the force if the distance between them is reduced to . It is given by :

So, if the the distance between them is reduced to , the new force becomes 16 times of the previous force.

The electrostatic force between and electron and a proton separated by 0.1 mm or is :

**So, the electrostatic force between and electron and a proton is ****. Hence, this is the required solution.**

**Answer:**

hello your question is incomplete attached below is the missing circuit diagram

**answer **: 3 unique currents

**Explanation:**

From the circuit attached below it can be seen that there will be Three(3) unique currents flowing through this circuit and the Branches where this currents could differ is at the Three(3) resistors