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Bingel [31]
3 years ago
11

How do you add this vector graphically

Physics
1 answer:
arlik [135]3 years ago
8 0

(-3,3)+(2,3)=(1,6)

this is the answer :)

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A net force acting on a 5.0 kg box produces an acceleration of 4.2 m/s2. What acceleration, to the nearest tenth of a m/s2, will
SCORPION-xisa [38]

The acceleration that the net force will cause is 7.5 m/s²

To solve this problem, first, we need to find the net force.

⇒ Equation:

F = ma................ Equation 1

⇒ Where:

  • m = mass of the box
  • a = acceleration of the box

From the question,

⇒ Given;

  • m = 5.0 kg
  • a = 4.2 m/s²

⇒ Substitute these values into equation 1

  • F = 5×4.2
  • F = 21 N

We also use the same equation 1 to find the acceleration that the net force will cause to a box of mass 2.8 kg.

⇒ make a the subject in equation 1

  • a = F/m................. Equation 2

⇒ Substitute the appropriate values into equation 2

  • a = 21/2.8
  • a = 7.5 m/s²

Hence, The acceleration that the net force will cause is 7.5 m/s²

Learn more about acceleration here: brainly.com/question/605631

4 0
3 years ago
Electric current passing through a human body can be dangerous, even fatal, depending on the amount of current, the duration of
Sati [7]

Answer:

V for dry skin = 41.83 volts

V for wet skin = 0.196 volts

Explanation:

The relationship between current and voltage is given as follows by Ohm's Law:

V = IR

where,

V = voltage

I = Current

R = Resistance

FOR DRY SKIN:

V = Vd = ?

I = 89 μA = 89 x 10⁻⁶ A

R = 4.7 x 10⁵ Ω

Therefore,

Vd = (89 x 10⁻⁶ A)(4.7 x 10⁵ Ω)

<u>Vd = 41.83 volts</u>

FOR WET SKIN:

V = Vw = ?

I = 89 μA = 89 x 10⁻⁶ A

R = 2200 Ω

Therefore,

Vd = (89 x 10⁻⁶ A)(2200 Ω)

<u>Vd = 0.196 volts</u>

7 0
4 years ago
Two straight wires are in parallel and carry electrical currents in opposite directions with the same magnitude of LaTeX: 2.02.0
koban [17]

Answer:

2.4\times 10^{-5} N

Explanation:

We are given that

I_1=I_2=2.0 A

Distance between the wires,d=5.0 mm=5\times 10^{-3} m

1mm=10^{-3} m

Length of other wire,l=0.3 m

Length of one wire is infinite.

We have to find the magnitude of force between the two wires.

We know that magnetic force

F=\frac{2\mu_0 I_1I_2 l}{4\pi d}

Where \frac{\mu_0}{4\pi}=10^{-7}

F=\frac{2\times 10^{-7}\times 2\times 2\times 0.3}{5\times 10^{-3}}

F=2.4\times 10^{-5} N

When the wires carrying equal current in opposite direction then the force between two wires repel to each other.

3 0
3 years ago
An astronaut is out in space with an extremely precise timing device measuring the speed of various fast‑moving objects. A laser
Leviafan [203]

Answer and Explanation:

with reference to Einstein's theory of special relativity, the speed of an electromagnetic radiation, here, laser will not change in any inertial frame or remains same irrespective of any change in inertial frame.

Therefore, the speed of light measured in both the cases, i.e., in astronaut's reference frame and spaceship's reference frame will be equal to the speed of light in vacuum, i.e., 3\times 10^{8} m/s.

The laser gun's speed in astronaut's reference frame is the same as the speed of the spaceship as it mounted on it, i.e., the speed of the laser gun is 200 million m/s.

The laser gun's speed measured in spaceship's reference frame will be zero, as it is mounted on the spaceship and is stationary in the spaceship's reference frame.

5 0
3 years ago
how does the location of semiconductors on the periodic table differ from the locations of other element families​
Mekhanik [1.2K]

Answer:

Semi conductors are part of the fourth group in periodic table.

Explanation:

Periodic table is the arrangement of chemical elements on the basis of their atomic number. So all the elements with  respective valence electrons are placed in thir respective groups. . All the elements with valence electrons four are placed in the fourth group .Semi conductors is the common name given to the elements of 4th group. These elements dont have the tendency to either donate or accept.

The group 3 elements have three electrons in their valence shell and  hence have a tendency to donate. Whereas the group 5 elements having five valence electrons accept to satisfy thir octet. The semi conductors exist between 3rd and 5th groups exhibiting different properties according to the temperatures and excitations provided.

3 0
3 years ago
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