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3 years ago

Describe an electrical circuit

1 answer:

3 0

An electrical circuit is a network consisting of a closed loop, giving a return path for the current . I hope that's help !

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Um carro viaja de uma cidade A a uma cidade B, distantes 200km.seu percurso demora 4 horas ,pois decorrida uma hora de viagem ,o

Aleksandr-060686 [28]

Answer: B

Explanation:

5 0

3 years ago

All of the following processes are the ones that lead directly to the formation of sedimentary rock EXCEPT-

emmasim [6.3K]

Answer:

melting of rock deep underground.

Explanation:

The melting of rocks deep underground does not produce sedimentary rocks. Most igneous rocks are produced by this process.

When molten rocks underground called magma is solidified in the subsurface, it results into the formation of igneous bodies.

Sedimentary rocks forms by the accumulation of sediments.
Inside the basin where the sediments are deposited, they are compacted, cemented and lithified.
Chemical and physical weathering of rocks produces sediments.

4 0

3 years ago

A level curve on a country road has a radius of 150 m. What is the maximum speed at which this curve can be safely negotiated on

SSSSS [86.1K]

The maximum speed of the car is 24.3 m/s

Explanation:

For a car moving along an unbanked turn, the frictional force provides the centripetal force required to keep the car in circular motion. Therefore, we can write:

$\mu mg = m\frac{v^2}{r}$

where the term on the left is the frictional force while the term on the right is the centripetal force, and where

$\mu=0.40$ is the coefficient of friction between the tires and the road

m is the mass of the car

$g=9.8 m/s^2$ is the acceleration of gravity

v is the speed of the car

r = 150 m is the radius of the curve

Solving for v, we find the (maximum) speed at which the car can move along the turn:

$v=\sqrt{\mu gr}=\sqrt{(0.40)(9.8)(150)}=24.3 m/s$

For speed larger than this value, the frictional force is no longer enough to keep the car along the turn.

Learn more about circular motion:

brainly.com/question/2562955

brainly.com/question/6372960

#LearnwithBrainly

8 0

3 years ago

An empty can is floating in a large beaker of water. The volume of water displaced in the beaker is equal to _____.

Mandarinka [93]

The volume of water displaced in the beaker is equal to the volume of the submerged part of the can.

4 0

3 years ago

If a box is pulled straight across the floor at a constant speed and it is pulled with a horizontal force of 48 N., what is the

Dima020 [189]

If its speed is constant and it's moving in a straight line, THAT's "constant, uniform motion". That can only happen when there's NO net force on the object.

So besides the 48 N forward that the puller is giving it, there must be friction with the floor, or mosquitoes all over it trying to fly backwards, or somebody crouched down behind it pulling it backwards, or some other kinds of things going on, that all add up to 48 N BACKWARDS.

Somehow, the NET force on the box has to be <em>zero, </em>because of the way it's moving.

7 0

3 years ago