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viva [34]
3 years ago
12

Does the magnetic field- due to the current carrying wire- curve in a clockwise or counter-clockwise direction in the area betwe

en the poles of the horseshoe magnet? How do you know?
Physics
1 answer:
Sauron [17]3 years ago
7 0
The direction would be dependent on the direction of the current through the circuit. But for this, you can use the right hand rule to determine the direction of the magnetic field. <span>The </span>right hand rule<span> states that: to determine the direction of the magnetic force on a positive moving charge, ƒ, point the thumb of the </span>right hand<span> in the direction of v, the fingers in the direction of B, and a perpendicular to the palm points in the direction of F.</span>
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A concave mirror has a focal length of 30.0 CM. an object is placed 15.0 CM from the mirror. what is the radius of curvature of
Nana76 [90]

Answer:

60 cm

Explanation:

We are given;

  • Focal length of a concave mirror as  30.0 cm
  • Object distance is 15.0 cm

We are required to determine the radius of curvature.

We need to know that the radius of a curvature is the radius of a circle from which the curved mirror is part.

We also need to know that the radius of curvature is twice the focal length of a curved mirror.

Therefore;

Radius of curvature = 2 × Focal length

Therefore;

Radius of curvature = 2 × 30 cm

                                 = 60 cm                                  

7 0
3 years ago
A 500 kg table with 4 legs rests on solid flat ground. I place 3 books on the center of the table with masses of 10 kg, 20 kg an
BARSIC [14]

Answer:

1,373.4 N

Explanation:

The mass of the table acts at the centre in addition to the books since that is the centre of gravity of the table.

Mass of books will be 10kg+20kg+30kg=60 kg

Total mass of table and books will be 500kg+60kg=560 kg

This mass is evenly distributed into the four legs hence 560kg/4 legs=140 kg per leg

Force is product of mass and acceleration due to gravity hence F=gm

Taking g as 9.81 m/s2 then

F=140*9.81=1,373.4 N

Therefore, rhe normal force is equivalent to 1,373.4 N

6 0
3 years ago
Which of the following is the best example of uniform circular motion? A. A child riding on a constantly spinning merry-go-round
Ulleksa [173]

A. because as the merry-go-round spins the child accelerates towards the center of the merry-go-round at a uniform rate.

5 0
3 years ago
What is the main function of chloroplasts?
dangina [55]

Answer:

C

To convert sunlight into usable sugars

(

Explanation:

6 0
3 years ago
An object is dropped on Earth from a height of 15 m. What is the magnitude of the velocity of the object just as it hits the gro
ivolga24 [154]
Here, we know, according to 3rd Equation of Kinematics, 
v² - u² = 2as

Here, u = 0  [ Free fall ]
a = 9.8 m/s² [ constant value for the Earth system ]
s = 15 m

Substitute their values, 
v² - 0² = 2 * 9.8 * 15
v² = 294
v = √294
v = 17.15 m/s

In short, Your Answer would be Option D

Hope this helps!
8 0
3 years ago
Read 2 more answers
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