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Murljashka [212]
3 years ago
11

What is the difference between constant and variable force ?

Physics
1 answer:
Nana76 [90]3 years ago
6 0
Constant force - stays the same throughout

Variable force - changes throughout
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A 66.5kg astronaut is doing a repair in space on the orbiting space station. She throws a 2.30kg tool away from her at 3.10m/s r
MrRa [10]

Answer:

Explanation:

mass of astronaut, M = 66.5 kg

mass of tool, m = 2.3 kg

velocity of tool, v = 3.10 m/s

Let the velocity of astronaut is V.

(A) According to the conservation of moemntum

Momentum of astronaut = Momentum of tool

M x V = m x v

66.5 x V = 2.3 x 3.10

V = 0.107 m/s

(B) The direction of motion of astronaut is opposite to the direction of motion of tool.

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3 years ago
Using a launch angle of zero, set the height to any value between 3-15 m. Set the horizontal velocity between 1-17 m/s and recor
ankoles [38]

Answer:It depends on the initial velocity of the projectile and the angle of projection. The maximum height of the projectile is when the projectile reaches zero vertical velocity. ... The horizontal displacement of the projectile is called the range of the projectile and depends on the initial velocity of the object

4 0
3 years ago
A heavier mass m1 and a lighter mass m2 are 17.0 cm apart and experience a gravitational force of attraction that is 9.70 10-9 N
puteri [66]

Answer:

The value of m1 is 4.2 kg and value of m2 is 1 kg.

Explanation:

Note:- The value of force is assumed to be 9.70*10^-9 N.

The gravitational force F is given by the formula,

F=Gm1m2 / r^2

where F is the force, G is the universal gravitational constant, m1 and m2 are masses and r is the distance between the masses.

Then the product of the masses is,

m1m2= Fr^2/G

Given F=9.70*10^-9 N, r is 17.0 cm which is equal to 0.17 m.

Therefore product m1m2= 9.70*10^-9 N *(0.17 m)^2 / 6.67*10^(-11) N m^2 kg^-2

m1m2= 4.20 kg^2

m1=4.20 kg^2/m2

The sum of masses is m1+m2=5.20 kg

 4.20/m2+m2=5.20

(m2)^2-5.20m2-4.20=0

After solving the above quadratic equation, mass m2 has values 4.2 kg and 1 kg.

By using m2=1 kg, m1 has greater mass 4.2 kg.

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brainly.com/question/13014873

#SPJ10

4 0
2 years ago
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A transformer primary has 100 V and 2 A. What is the voltage if the secondary has a current of 1 A?
Nat2105 [25]
50 V. I don't know if this is correct, mainly because I'm in 7th grade.
4 0
3 years ago
What is the energy of a photon with the wavelength 150 nm?
yaroslaw [1]
V (frequency) = C(speed of light)/ h (planks constant)

E (energy) = v / h

Use those equations to get energy.

Use standard units.
so convert nm to m first
3 0
4 years ago
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