a car with a mass of 2000 kilograms is moving around a circular curve at a uniform velocity of 25 meters per second. The curve has a radius of 80 meters. What is the centripetal force on the car

Answers

Answer 1

Answer: In the given problem, we say various information's that are going to help us reach the ultimate answer to the question. Let us first write the information's that have been presented in front of us.
Mass of the car = 2000 kg
Velocity of the car = 25 m/s^2
Radius of the circle = 80 m
Now we already know the equation for calculating the centripetal force and that is
Centripetal Force = [mass * (velocity)^2]/Radius
      = [2000 * (25)^2]/80
      = (2000 * 625)/80
      = 1250000/80
      = 15625
So the centripetal force on the car is 15625 Newtons

Answer 2

Answer:

your answer is 15,625 N

i just took the test

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Define unit of electric work (JOULE) in relation to quantity of charge and potential difference.

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An object that has a height of 0.4 meter is placed at a distance of 0.7 meter from a concave spherical mirror. An image is formed in front of the mirror and has a height of 0.35 meter. How far from the mirror is the image located?A. 0.2000 m
B. 0.4275 m
C. 0.6125 m
D. 0.8000 m

Answers

Answer

C. 0.6125 m

Explanation

The magnification of an image produced by curved mirrors can be given in two ways;

Magnification, M = (Height of the image) / (height if the object) and

M = (image distance,V) / (Object distance, U).

Using the first formula,

M = 0.35/0.4

= 0.875

Now from the second formula,

M = V/U

0.875 = V/0.7

V = 0.875 × 0.7

= 0.6125 m

Answer : v = 0.1625 m.

Explanation :

It is given that,

Height of an object, $h_o=0.4\ m$

Object distance, $u=-0.7\ m$

Height of an image, $h_i=0.35\ m$

We have to find the image distance (v).

We know that the magnification of mirror is the ratio of height of image to the height of object.

i.e. $m=(h_i)/(h_o)$ ..............(1)

Also, magnification is the ratio of image distance to that of object distance.

i.e $m=(-v)/(u)$ ............(2)

So, from equation (1) and (2)

$(-v)/(u)=(h_i)/(h_o)$

$(-v)/(-0.7\ m)=(0.35\ m)/(0.4\ m)$

$v=0.6125\ m$

So, image is located at a distance of 0.6125 m.

Why does the ballon stick to the wall after it is rubbed on the wool sweater?

Answers

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Why does water have a high surface tension?Hydrogen bonding keeps water molecules close together.
Water is a liquid at room temperature.
Water molecules contain 18 electrons.
The lengths of the bonds in water molecules can change.

Answers

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Answer:

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Would you rather drink a hot beverage from a metal cup or a ceramic cup

Answers

Hey there!
I would personally drink a hot beverage from a ceramic cup than a metal cup for various reasons.
Firstly, ceramic cups do not change the taste of the beverage, while in some cases, metal cups do.

Secondly, since metal conducts heat, it would be wise to drink a hot beverage from a ceramic cup. Heated metal can burn your fingers if touched.

(If you feel that my answer has helped you, please consider rating it and giving it a thank you! Also, feel free to make the best answer, the brainliest answer!)

Thank you! :D

Ceramic, since metals can sometimes change the taste.

The data showed that there was no significant difference in healing times between the two groups, so the researcher concluded that calcium intake has no effect on bone healing time. Why is the conclusion of the researcher not justified?

Answers

Without knowing the structure and methods of his study,
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