Explanation

The centripetal force necessary to keep the racing car in its circular path is indeed provided by friction between the tires of the car and the track.

Concept:

When the car is moving in a circular path, it experiences an inward acceleration towards the center of the circle.

This acceleration is called the centripetal acceleration.

According to Newton's second law of motion, the net force acting on an object is equal to the mass of the object multiplied by its acceleration.

In this case, the net force is the centripetal force, and the centripetal acceleration can be calculated using the formula:

a_c = v^2 / r

Where:

- a_c is the centripetal acceleration

- v is the speed of the car

- r is the radius of the circular track

Substituting the given values into the formula:

a_c = (50.0 m/s)^2 / 250 m

Simplifying the equation:

a_c = 2500 m^2/s^2 / 250 m

a_c = 10 m/s^2

The centripetal force required to keep the car in its circular path is equal to the product of the car's mass and the centripetal acceleration.

Using the given mass of the car:

F = (2.00 x 10^3 kg) * (10 m/s^2)

Simplifying the equation:

F = 2.00 x 10^4 N

Therefore, the centripetal force necessary to keep the car in its circular path is provided by friction and its value is 2.00 x 10^4 Newtons.

Explanation

Biochemistry is both life science and a chemical science -

it explores the chemistry of living organisms

the molecular basis for the changes occurring in living cells.

Explanation

The Beaufort scale is used to measure and detail the consequences of different wind speeds on objects on land or at sea.

The Beaufort numbers in the Beaufort scale are arranged from 0 to 12 to represent the wind strength from calm (force 0) to the hurricane ( force 12).

ND17-7-2023

Explanation

• The body of amphibians is divided into Head, Neck, and Trunk
• ***
• Amphibians are the first true tetrapods or vertebrates with four limbs.
• Amphibians breathe with gills as larvae and with lungs as adults.
• They have a three-chambered heart and a relatively complex nervous system.
  

Explanation

• Pollination by wind is called Anemophily
• **
• Anemophily is the process when pollen is transported by air currents from one individual plant to another.
• About 12% of the world's flowering plants are wind-pollinated
• **
• In plants, the process of pollination enables angiosperm
  The best pollinator for Pollination is Bee
  
  

Explanation

Lenz's law states that the direction of induced current in a closed loop is such that it opposes the change in magnetic flux that produced it.

This means that if the magnetic field through a loop increases, the induced current will flow in a direction that creates a magnetic field opposing that increase, and vice versa.

Explanation

Hess's law states that the total enthalpy change of a reaction is the same, regardless of the number of steps in which the reaction occurs, allowing ∆H to be measured indirectly.

Explanation

The noble-gas notation [Kr] is for krypton, and Zr (Zirconium) follows krypton in the periodic table with the configuration 5s², 4d².

Explanation

The Zeeman effect refers to splitting spectral lines when atoms are subjected to a magnetic field.

Explanation

The alkaline mucus secreted by the Cowper's glands also plays an important role in neutralizing the acidic nature in the urine.