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Irina-Kira [14]
3 years ago
5

Need asap!

Physics
1 answer:
Genrish500 [490]3 years ago
7 0

Answer:

3.0 A Is the correct option

Explanation:

I = V / R

I = 12/ 4

= 3

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Consider an alcohol and a mercury thermometer that read exactly 0 oC at the ice point and 100 oC at the steam point. The distanc
Alexeev081 [22]

Answer:

No, both the thermometers will give the different reading.

Explanation:

Given,

  • Both thermometer has same ice point = T_i\ =\ 0^o C
  • Both thermometer has same steam point = T_s\ =\ 100^o C
  • Distance between the ice point and steam point in both the thermometer is same of 100 division,

All the data given in both the thermometers are same, but the material in the thermometer is different due to this the reading at 60^o C will differ in both the thermometer. Because the reading on both the thermometer is depended upon the thermal expansion of the material inside it, but both the materials are different. Due to this the rise of fluid in the thermometer, i,e,. the volume of the fluid material in the thermometer will depend upon the thermal expansion.  Hence both the material alcohol and mercury have the different thermal expansion, therefore the rise of the fluid in the thermometer also differ in both the thermometer.

7 0
3 years ago
Given the force diagram of the basketball, what can you tell about the basketball motion?
VARVARA [1.3K]

Newton's laws allow to find the result for the movement of the basketballl:

  • On the vertical axis the ball is on the ground.
  • On the horizontal axis the ball is accelerating in the direction of the pushing force.

Newton's laws establish the relationship between the forces on objects:

  • The 1st law states that if the net force is zero the object is stationary or with constant speed.
  • The 2nd law gives a relation of the force with the mass and the acceleration of the body.
  • The 3rd. Law states that the force appears in pairs, one on each body with the same magnitude, but in the opposite direction.

Let's apply these principles to the ball's motion diagram.

The two vertical forces are in the opposite direction, one is due to the weight of the body and the other is the attraction of the earth to the support of the ball, they are of equal magnitude, not their action-reaction force and reluctant because it is applied to the same body

       In conclusion we can say that the ball is on the ground.

The two horizontal forces are in the opposite direction, the thrust force is greater than the friction therefore using Newton's second law the ball must be accelerating in the direction of the thrust force.

       In conclusion we can say that the ball is accelerating in the direction of the pushing force.

In conclusion using Newton's laws we can find the result for the motion of the basketball:

  • On the vertical axis the ball is on the ground.
  • On the horizontal axis the ball is accelerating in the direction of the pushing force.

Learn more about Newton's laws here:  brainly.com/question/3715235

8 0
3 years ago
You are stopped a red light and you are in the front car at an intersection. Thinking as a defensive driver, describe what your
Airida [17]
Proceed to go when the light turns green with caution watching out for other drivers to prevent and accident
8 0
3 years ago
Consider that a clay model of a tiger has a mass of 0.195 kg and glides on ice at a speed of 0.75 m/s. It hits another clay mode
juin [17]

Answer:

The final velocity after the collision is 0.27 m/s.    

Explanation:

Given that,

Mass of tiger, m = 0.195 kg

Initial speed of tiger model, v = 0.75 m/s

Mass of another clay model, m' = 0.335 kg

Initially, second model is at rest, v' = 0

We need to find the final velocity after the collision. It is a case of inelastic collision. Using the conservation of linear momentum as :

mv+m'v'=(m+m')V\\\\V=\dfrac{mv+m'v'}{(m+m')}\\\\V=\dfrac{0.195\times 0.75}{(0.195 +0.335 )}\\\\V=0.27\ m/s

So, the final velocity after the collision is 0.27 m/s.    

6 0
4 years ago
As a tile falls from the roof of a building to the ground its momentum is conserved.
ludmilkaskok [199]
No it isn't.
Gravity does work on the tile, causing its momentum
and its kinetic energy to increase.
6 0
4 years ago
Read 2 more answers
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