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lana66690 [7]
3 years ago
8

How does the gravitational force between two objects change if the mass of

Physics
1 answer:
GalinKa [24]3 years ago
3 0

Answer:

When one of the two objects mass is doubled the gravitational force of one of the objects becomes twice as strong.

Explanation:

Because jesus said so

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If you view a complete free body diagram of a moving object, what two aspects of the body's motion will the diagram show?
kirill115 [55]
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5 0
3 years ago
if a 60 kg person was standing on a platform at the surface of saturn and they jumped, they would have to push with a force grea
lidiya [134]

Answer:

A 60 kg person standing on a platform at the surface of Saturn and they jumped, they would have to push with a force greater than 540 N

Explanation:

The gravitational attraction between an object on the surface of a planet and the planet is given by the weight of the object

Therefore the force needed to be applied for an object to lift off the surface of a planet = The weight of the object

The weight of the object on the surface of a planet = m × g

Where;

m = The mass of the object

g = The strength of gravity on the planet's surface in N/kg

The given parameters are;

The mass of the person standing on a platform at the surface of Saturn, m = 60 kg

The strength of gravity on the surface of Saturn = 9 N/kg

Therefore, we have;

The weight of the person = The force greater than which the person would have to push on the surface of Saturn so as to Jump = The weight of the person on the surface of Saturn = 60 kg × 9 N/kg = 540 N

Therefore, for a 60 kg person standing on a platform at the surface of Saturn and they jumped, they would have to push with a force greater than 540 N.

4 0
3 years ago
What does the atomic mass number represent
UNO [17]

Answer:

the number of neutrons and protons in an atom

6 0
3 years ago
A bullet of mass 0.107 kg traveling horizontally at a speed of 300 m/s embeds itself in a block of mass 3 kg that is sitting at
melisa1 [442]

Answer:

165.77J

Explanation:

M₁ = 0.107kg

u₁ = 300m/s

m₂ = 3kg

u₂ = 0

v =

m₁u₁ + m₂u₂ = (m₁ + m₂)V

(0.107*300) + 0 = (0.107 + 3)V

V = 32.1 / 3.107 = 10.33m/s

kinetic energy of the system after collision =

½m1v² + ½m2v²

K.E = ½(m1 + m2)v²

K.E = ½(0.107+3) * 10.33²

K.E = 165.77J

5 0
3 years ago
Modern wind turbines are larger than they appear, and despite their apparently lazy motion, the speed of the blades tips can be
Crank

Answer:

(a) v = 65.35 m/s

(b) ac = 82.16 m/s²

Explanation:

Kinematic of the blades of the wind turbine

The blades of the wind turbine describe circular motion and the formulas that apply to this movement are as follows:

v = ω * R   Formula (1)

Where:

v : tangential velocity (m/s)

ω : angular velocity (rad/s)

R : radius of the particle path (m)

The velocity vector is tangent at each point to the trajectory and its direction is that of movement. This implies that the movement has centripetal acceleration (ac):

ac =  ω²* R Formula (1)

ac : centripetal acceleration (m/s²)

Data:

ω=  12 rpm = 12 rev/min

1 rev = 2π rad

1 min = 60 s

ω=  12 rev/min = 12 (2π rad)/(60 s)

ω = 1.257 rad/s

R = 52 m

(a)Tangential velocity at the tip of a blade (v)

We apply the formula (1)

v =  ω* R

v =  ( 1.257)* (52) = 65.35 m/s

(a)  Centripetal acceleration at the tip of a blade (ac)

We apply the formula (2)

ac =  ω²*R

ac =   ( 1.257)²* (52) = 82.16 m/s²

6 0
3 years ago
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