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loris [4]
3 years ago
10

10 N 30 N 4kg net force = a=f/m=

Physics
1 answer:
ICE Princess25 [194]3 years ago
6 0

Answer:

a=5\ m/s^2

Explanation:

Two forces are 10 N and 30 N. Let us assume that two forces are acting in opposite directions. Net force will be :

F = 30 N - 10 N = 20 N

Now,

F = ma

⇒ a = F/m

So,

a=\dfrac{20}{4}\\\\a=5\ m/s^2

So, the acceleration of the object is 5\ m/s^2.

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Because of surface tension, it is possible, with care, to support an object heavier than water on the water surface. The maximum
boyakko [2]

Answer:

\pi 1 = \frac{h}{l}

\pi 2 = б / l^2gp

\frac{h}{l} = Ф ( б / l^2gp )

Explanation:

<u>Develop a suitable set of dimensionless parameters for this problem</u>

The set of dimensionless parameters for this problem is :

\pi 1 = \frac{h}{l}

\pi 2 = б / l^2gp

\frac{h}{l} = Ф ( б / l^2gp )

and they are using the pi theorem, MLT systems

attached below is a detailed solution

7 0
3 years ago
2.List two changes an unbalanced force can cause.
Evgen [1.6K]

Answer:

By applying an unbalanced force, you can change the motion of an object. Unbalanced forces can make an object at rest start moving, make a moving object stop, or change the direction and speed of the object.

Explanation:

3 0
3 years ago
You are trying to climb a castle wall so, from the ground, you throw a hook with a rope attached to it at 24.1 m/s at an angle o
Serhud [2]

Answer:

The value is  h  =  13.2 \  m

Explanation:

From the question we are told that

    The speed of the rope with hook is u =  24 .1 \  m/s

     The angle is  \theta = 65.0^o

      The speed at which it hits top of the wall is  v  =  16.3 m/s

Generally from kinematic equation we have that

      v_y^2  =  u_y ^2 + *  2 (-g)* h

Here h is the height of the wall so

      [16.3 sin (65)]^2 =  [24.1 sin (65)] ^2+   2 (-9.8)* h

=>    h  =  13.2 \  m

4 0
3 years ago
Name the type of particle formed by covalent bonds
jasenka [17]
Molecules and polyatomic ions are formed by covalent bonds.
6 0
3 years ago
The presence of a uniform magnetic field may be detected by using a
Alex777 [14]

Answer:

Magnetic compass

Explanation:

A magnetic field is a field that describes the magnetic effect of electric charges in a relative motion.

Magnetic field allows magnets to interact without contact. The principle involved in the function of the compass is that a magnetic field exerts a force on any moving charge and can be measured and detected by this effect.

8 0
3 years ago
Read 2 more answers
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