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LiRa [457]
3 years ago
9

Magnitude of displacement

Physics
2 answers:
Sergio [31]3 years ago
7 0

Answer:

Magnitude of displacement is equal to the absolute value of the displacement vector. In physical sense, the magnitude of displacement is equal to the linear distance between initial and final positions along the straight line joining two positions i.e. the shortest distance between initial and final positions.

Explanation:

Yea, it is what it is

Reptile [31]3 years ago
7 0

Answer:

The magnitude of dispalcement of a particle in motion for a given time is the shortest distance between the initial and final position of the particle in that time.

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A car accelerates from rest. It reaches a velocity of 25m/s in 10 seconds. What was the cars acceleration
soldier1979 [14.2K]

Answer:

a = 2.5 m/s^2

Explanation:

u = 0

v = 25

t = 10

(using first eq. of motion)

a = (v - u) /t

a = (25 - 0) /10

a = 25/10

a = 2.5 m/s^2

7 0
3 years ago
A 1500-kg car doubles its speed from 50 km/h to 100 km/h. By how many times does the kinetic energy from the car's forward motio
Marat540 [252]

Answer:

The kinetic energy increases 4 times

Explanation:

Given,

The mass of the car, m = 1500 Kg

The speed of the car doubles from 50 Km/h to 100 Km/h

The kinetic energy at 50 Km/h

                                K.E = ½mv²

                                       = ½ x 1500 x 50²

                                       = 1875000 J

The kinetic energy of the car at 100 Km/h

                               K.E = ½mv²

                                     = ½ x 1500 x 100²

                                     = 7500000 J

Hence, the final K.E is 4 times the initial K.E

6 0
4 years ago
Determine the gravitational force of attraction experienced by a two 5.00 kilogram masses separated by a distance of 2.5 meters.
drek231 [11]
The gravitational force between two objects may be calculated through the equation,
                                     F = Gm₁m₂ / d²
where G is 6.67 x 10^-11 m³/s²kg
Substituting the known values to the equation,
                        F = (6.67 x 10^-11 m³/s²kg)(5.0 kg)(5.0 kg) / (2.5 m)²
                                     F = 2.668 x 10^-10 N
4 0
3 years ago
Newton's First Law is also called the Law of Inertia. Which of the objects below has the most inertia, the white truck or yellow
Deffense [45]

Answer:

Personally I say the yellow truck but...

Explanation:

It's heavily based on the object's mass...

If you know which object has the most mass than I would choose that one, but personally I think the yellow one has the most mass...

4 0
2 years ago
Two in-phase loudspeakers that emit sound with the same frequency are placed along a wall and are separated by a distance of 8.0
zloy xaker [14]

Answer: 278\ Hz

Explanation:

Given

Distance between two speakers is 8 m

Man is standing 12 away from the wall

When the person moves 3 parallel to the wall

the parallel distances from the speaker become 4+3, 4-3

Now, the difference of distances from the speaker is

\Delta d=\sqrt{12^2+(4+3)^2}-\sqrt{12^2-(4-3)^2}\\\Delta d=1.85\ m

Condition for destructive interference is

\Delta d=(2n-1)\dfrac{\lambda }{2}=(2n-1)\dfrac{\nu }{2f}\\\\\Rightarrow f=(2n-1)\dfrac{v}{2\Delta d}

for second destructive interference; n=2

\Rightarrow f=(2\times 2-1)\dfrac{343}{2\times 1.85}=278.10\approx 278\ Hz

4 0
3 years ago
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