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Evgen [1.6K]
3 years ago
6

What is the gravitational force between two 15-kg packages that are 0.35 cm apart?

Physics
1 answer:
Gekata [30.6K]3 years ago
5 0

Answer:

u wanna play some blox?

Explanation:

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A human heart beats once in 0.8 seconds. How many times it will beat in the life of 70 years.
Y_Kistochka [10]

Answer:

Explanation:

108,000 beats per hour

613,200 hours in 70 years

108,000 times 613,200 =

66225600000 beats

8 0
3 years ago
which type of graph would be best for showing the percentage of people in a family with different jobs?
Morgarella [4.7K]

Answer:

A pie chart.

Explanation:

Hope this helps :  )

6 0
3 years ago
A force of constant magnitude pushes a box up a vertical surface, as shown in the figure.
Ray Of Light [21]

The work done on the box by the applied force is zero.

The work done by the force of gravity is 75.95 J

The work done on the box by the normal force is 75.95 J.

<h3>The given parameters:</h3>
  • Mass of the box, m = 3.1 kg
  • Distance moved by the box, d = 2.5 m
  • Coefficient of friction, = 0.35
  • Inclination of the force, θ = 30⁰

<h3>What is work - done?</h3>
  • Work is said to be done when the applied force moves an object to a certain distance

The work done on the box by the applied force is calculated as;

W = Fd cos(\theta)\\\\W = (ma)d \times cos(\theta)

where;

a is the acceleration of the box

The acceleration of the box is zero since the box moved at a constant speed.

W = (0) d \times cos(30)\\\\W = 0 \ J

The work done by the force of gravity is calculated as follows;

W = mg \times d\\\\W = 3.1 \times 9.8 \times 2.5 \\\\W = 75.95 \ J

The work done on the box by the normal force is calculated as follows;

W = (F_n) \times d\\\\W = (mg + F sin\theta) \times d\\\\W = (mg + 0) \times d\\\\W = mgd\\\\W = 3.1 \times 9.8 \times 2.5\\\\W = 75.95 \ J

Learn more about work done here: brainly.com/question/8119756

8 0
2 years ago
Calculate the pressure in bar of 2520 moles of hydrogen gas stored at 27 °c in the 180-l storage tank of a modern hydrogen-power
marin [14]

Answer: 347 bar


Explanation:

1) Data:


n = 2520 moles

T = 27 + 273.15 = 298.15 K

V = 180 liter

p = ?


2) Formula


Ideal gas equation: pV = nRT


3) Solution:


p = nRT/V = 2520 mol × 0.0821 atm×liter/K×mol ×298.15K / 180 liter = 342.7 atm


Conversion: 342.7 atm × 1,01325 bar / atm = 347 bar



7 0
3 years ago
How fast is a plane traveling if it traveled 400 km in 30 minutes
olganol [36]
  • Answer:

<em>800 km/h</em>

  • Explanation:

<em>Hi there ! </em>

<em>1 hour = 60 min</em>

<em>30 min = 0.5 hour</em>

<em />

<em>400 km ............ 0.5 h</em>

<em>    x km .............. 1 h</em>

<em />

<em>x = 400km×1h/0.5h</em>

<em>= 800 km/h</em>

<em />

<em>Good luck</em>

3 0
3 years ago
Read 2 more answers
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