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
masha68 [24]
4 years ago
6

a box container both cube and five side pyramid the total number of objects is 17 the total number of side for the cube and pyra

mid is 95 how many cubes are in the box​
Physics
1 answer:
pashok25 [27]4 years ago
5 0

Answer:

There are 10 cubes in the box

Explanation:

Let the total number of cubes be x and the total number of pyramids be y

Since there are 17 total objects;

Then;

x + y = 17 •••••••••(i)

Also, the total number of sides of cubes is 6 * x = 6x ( a single cube has 6 sides)

For the pyramid we have 5 * y = 5y

adding both gives the total number of sides

6x + 5y = 95 •••••• (ii)

From i, we cabs say y = 17-x

plug this in ii

6x + 5(17-x) = 95

6x + 85 -5x = 95

6x-5x = 95-85

x = 10

You might be interested in
(c) Nail tips exert tremendous pressures when they are hit by hammers because they exert a large force over a small area. What f
ziro4ka [17]

Answer:

Force, F = 2356.19 N

Explanation:

Given that,

Diameter of the circular tip, d = 1 mm = 0.001 m

Its radius, r = 0.0005 m

Pressure created, P=3\times 10^9\ N/m^2

To find,

Force exerted on the nail.

Solution,

The pressure exerted by an object is equal to the force acting per unit area. Its formula is given by :

P=\dfrac{F}{A}

F=P\times A

F=3\times 10^9\ N/m^2\times \pi (0.0005\ m)^2

F = 2356.19 N

Therefore, the force exerted on the nail is 2356.19 N.

6 0
3 years ago
Find the speed required to throw a ball straight up and it return 6 seconds later. Neglect air resistance
Nadya [2.5K]

Answer:

the ball will go up 3s and down 3s

v=gt

where t=3s and g=9.8m/s^2

distance=v0(t)+(1/2)gt^2

where initial velocity (v0)=0

Explanation:

8 0
3 years ago
Unpolarized light is incident upon two polarization filters that do not have their transmission axes aligned. If 21% of the ligh
Debora [2.8K]

Answer:

49.6°

Explanation:

I_0 = Unpolarized light

I_2 = Light after passing though second filter = 0.21I_0

Polarized light passing through first filter

I_1=\frac{I_0}{2}

Polarized light passing through second filter

I_2=\frac{I_0}{2}cos^2\theta\\\Rightarrow 0.21I_0=\frac{I_0}{2}cos^2\theta\\\Rightarrow cos^2\theta=\frac{0.21I_0}{\frac{I_0}{2}}\\\Rightarrow cos\theta=\sqrt{\frac{0.21I_0}{\frac{I_0}{2}}}\\\Rightarrow \theta=cos^{-1}\sqrt{\frac{0.21I_0}{\frac{I_0}{2}}}\\\Rightarrow \theta=cos^{-1}\sqrt{0.21\times 2}\\\Rightarrow \theta=cos^{-1}\sqrt{0.42}\\\Rightarrow \theta=49.6^{\circ}

The angle between the two filters is 49.6°

5 0
4 years ago
Hat processes lead to glacial erosion ?
azamat
Yes......................
8 0
4 years ago
Can you ever hold your Moon sphere in the light and have it be more or less than half-lit?
Anettt [7]
No if in the light it would be always half lit
5 0
3 years ago
Read 2 more answers
Other questions:
  • An automobile tire has a volume of 1.63 x 10-2 m3 and contains air at a gauge pressure (pressure above atmospheric pressure) of
    9·1 answer
  • A 25kg chair initially at rest on a horizontal floor requires 165 N force to set it in motion. Once the chair is in motion, a 12
    7·1 answer
  • On the graph of voltage versus current, which line represents a 2.0 Ω resistor?​
    13·1 answer
  • Infrasounds _____.
    6·1 answer
  • If there is no difference in the dry and wet bulb, you can assume that the relative humidity is __________.
    13·1 answer
  • 120 J of work was done to lift an object 6 m above
    6·1 answer
  • A series LR circuit contains an emf source of having no internal resistance, a resistor, a inductor having no appreciable resist
    7·1 answer
  • A force of 3 newtons moves a 10 kilogram mass horizontally a distance of 3 meters. The mass does not slow down or speed up as it
    11·1 answer
  • In what way does the article contrast small cars with large cars?
    15·1 answer
  • As stream discharge increases ________. only velocity increases velocity, width, and depth increase velocity, width, and depth d
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!