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Sedbober [7]
3 years ago
12

Two strong permanent magnets are placed one inch apart. Which two fundamental forces will most affect them?

Physics
1 answer:
Anuta_ua [19.1K]3 years ago
3 0
The answer i got was c. gravity and strong
i hope it helps

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Two neutral metal spheres on wood stands are touching. A negatively charged rod is held directly above the top of the left spher
FrozenT [24]

Answer: Option (C) is the correct answer.

Explanation:

As we know that metals are able to conduct electricity so, when a negatively charges rod is kept closer to the left sphere then electrons will enter the sphere.

Since, like charges repel each other. Hence, some of the negative changes from the rod will repel the negative charges of left sphere.

As both left and right spheres are touching each other so, the electrons will move towards the right sphere. As a result, there will be too many electrons (negative charge) present on the right sphere and very less electrons present in the left sphere.

Thus, we can conclude that the statement right sphere is negatively charged, another is charged positively, is true.

7 0
3 years ago
Read 2 more answers
A brick is thrown from a wall that is 19.2 m above the ground and hits the ground 5.00 s later. What was the initial velocity of
Brums [2.3K]

Answer:

0

Explanation:

Given the following :

Height of wall = 19.2 m

Time taken to hit the ground = 5 seconds

Acceleration due to gravity (g) = 9.8m/s ( downward motion)

The initial velocity of the object refers to the Velocity of the object at time t = 0

Initial Velocity = g × time

Initial Velocity = 9.8 × 0 = 0

5 0
3 years ago
judith weighs twice as much as Kristina.judith can run up a flight of stairs in 5 seconds while Kristina requires 10 seconds.com
Bumek [7]

Answer:

judith has power while

krsistina don't

8 0
3 years ago
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A cylinder contains 3.5 L of oxygen at 350 K and 2.7 atm . The gas is heated, causing a piston in the cylinder to move outward.
Effectus [21]

Answer:

The pressure is P_2  =  1.84 \  a.t.m

Explanation:

From the question we are told that

   The first  volume of  is  v_1  =  3.5 \ L

   The first  pressure is  P_1  =  2.7 \ a.t.m

   The first  temperature is  T_1  =  350 \ K

    The  new temperature is  T_2  =  620 \ K

     The  new volume is  V_2  =  9.1 \ a.t.m

Generally according to the combined gas law we have that

      \frac{P_1 V_1  }{T_1 }  =  \frac{P_2  V_2 }{T_2 }

=>  P_2  =  \frac{P_1  *  V_1  *  T_2 }{T_1  *  V_2 }

=>    P_2  =  \frac{ 2.7  *  3.5   *  620 }{ 350  *  9.1 }

=>  P_2  =  1.84 \  a.t.m

4 0
3 years ago
A 2 N and an 8 N force pull on an object to the right and a 4 N force pulls to the left a 0.5 kg object. What is the acceleratio
lara31 [8.8K]

Answer:

Acceleration is 12m/s^2

Explanation:

We have a resultant force of 10N to the right and a resultant of 4N to the left, since the tow forces are acting in opposite directions, we subtract the two forces to find the net force. The net force would be 6N to the right.

We also know that F=ma, where F=force, m=mass, and a=acceleration

we can rearrange the equation like this,

a=F/m

now we can plug in the known variables

a=6N/0.5kg

a=12m/s^2

8 0
2 years ago
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