1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Gennadij [26K]
3 years ago
13

Suppose that two objects attract each other with a gravitational force of 50N. If the mass

Physics
1 answer:
jekas [21]3 years ago
3 0

Answer:

F' = 112.5 N

Explanation:

The force of gravitation between two objects is given by Newton's Law of Gravitation as follows:

F = \frac{Gm_{1}m_{2}}{r^2}\\______________ equation (1)

where,

F = Force = 50 N

G = universal gravitational constant

m₁ = mass of the first object

m₂ = mass of the second object

r = distance between objects

Now, the masses of each object are tripled and the distance between them is doubled:

m₁' = 3m₁

m₂' = 3m₂

r' = 2r

Hence, the new force will be:

F' = \frac{G(3m_{1})(3m_{2})}{(2r)^2}\\\\F' = \frac{9}{4}\frac{Gm_{1}m_{2}}{r^2}

using equation (1), we get:

F' = 2.25 F = 2.25(50 N)

<u>F' = 112.5 N</u>

You might be interested in
Number 12 gauge wire, commonly used in household wiring, is 2.053mm in diameter and can safely carry up to 20A. For a wire carry
Likurg_2 [28]

Answer:

The magnetic field strength is 3.9 x 10⁻³ T

Explanation:

The equation for the magnetic field strength produced by a long straight current-carrying wire is written as;

B = \frac{\mu_o I }{2\pi r}

Where;

μ₀ is constant = 4π x 10⁻⁷ N/A

I is the maximum current = 20 A

r is the radius of the wire = 2.053/2 = 1.0265 mm = 1.0265 x 10⁻³ m

Substitute in this values into the equation above;

B = \frac{4 \pi X10^{-7} X 20}{2\pi X 1.0265X10^{-3} } \\\\B =3.9 X10^{-3} T

Therefore, the magnetic field strength is 3.9 x 10⁻³ T

8 0
3 years ago
______ studies the blood types and immune factors as a means of identification of the source of the blood.
emmainna [20.7K]
Pretry aute its 2. Serologist
3 0
4 years ago
The police department is excited to have some new motorcycle units. One officer said that these motorcycles can go from 0 miles
vaieri [72.5K]
The officer is describing the motorcycle's acceleration

That is, he's describing how the motorcycle's velocity changes when compared to the time. That's the formula for calculating the average acceleration of any body.
3 0
3 years ago
Using a rope that will snap if the tension in it exceeds 356 N, you need to lower a bundle of old roofing material weighing 478
klasskru [66]

Answer:

a) 2.5 m/s²

b) 6.12 m/s

Explanation:

Tension of rope = T = 356N

Weight of material = W = 478 N

Distance from the ground = s = 7.5 m

Acceleration due to gravity = g = 9.81 m/s²

Mass of material = m = 478/9.81 = 48.72

Final velocity before the bundle hits the ground = v

Initial velocity = u = 0

Acceleration experienced by the material when being lowered = a

a) W-T = ma

⇒478-356 = 48.72×a

\Rightarrow \frac{122}{48.72} = a

⇒a = 2.5 m/s²

∴ Acceleration achieved by the material is 2.5 m/s²

b) v²-u² = 2as

⇒v²-0 = 2×2.5×7.5

⇒v² = 37.5

⇒v = 6.12 m/s

∴ Velocity of the material before hitting the ground is 6.12 m/s

5 0
4 years ago
Please help.................​
Goryan [66]

Answer:

I'dont know sooooooooooooooooooooooorrrrrrrrrrrrrrrrry

7 0
3 years ago
Read 2 more answers
Other questions:
  • Three swimmers can swim equally fast relative to the water. They have a race to see who can swim across a flowing river in the l
    9·1 answer
  • 3. A 64 lb weight stretches a spring 4 ft in equilibrium. The weight is initially displaced 6 inches above equilibrium and given
    15·1 answer
  • A 1.35 V potential difference is maintained across a 1.1 m length of tungsten wire that has a cross-sectional area of 0.72 mm2 .
    6·1 answer
  • Light has many properties of a stream of waves?true or false??
    15·1 answer
  • At highway speeds, a particular car is capable of an acceleration of about 1.6 m/s?. At this rate,
    11·1 answer
  • According to Newton's 2nd law of motion, Jim can throw a _____ farther than a _____. tennis ball, basketball can of soda, liter
    10·2 answers
  • A force of 9.6 N acts on a 5.1 kg object for 8.2 s. Calculate the object's change in velocity (in m/s).​
    8·1 answer
  • What is uniform motion?
    9·1 answer
  • WORTH 15 POINTS WILL GIVE BRAINLIEST
    13·1 answer
  • What voltage is required to move 2A through 5Ω?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!