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
makvit [3.9K]
3 years ago
5

What is the volume of a square pyramid with base edges of 40 cm and a slant height of 25 cm? (1 point 533.3 cm3 8,000 cm3 12,000

cm3 24,000 cm3?
Chemistry
1 answer:
Alexeev081 [22]3 years ago
5 0
The answer 
the main formula of the volume of a square pyramid is 

V = 1/3 b² h (because the area of the base is A= bxb=b²)
b = 40cm
h= 25 cm 
so the volume is V= 1/3 b² h =1/3 x 40² x 25 = 13333,33 cm^3

You might be interested in
A mineral is made from what in the ground
IrinaK [193]
<span>Minerals are solid substances that occur naturally. They can be made from a single element (like gold or copper) or from a combination of elements.</span>
3 0
3 years ago
U-235 undergoes many different fission reactions. For one such reaction, when U-235 is struck with a neutron, Ce-144 and Sr-90 a
Lostsunrise [7]

Explanation:

A nuclear fission reaction is defined as the reaction in which a heavy nucleus splits into small nuclei along with release of energy.

The given reaction is ^{235}_{92}U + ^{1}_{0}n \rightarrow ^{144}_{58}Ce + ^{90}_{38}Sr + x^{1}_{0}n + y^{0}_{-1}\beta

Now, we balance the mass on both reactant and product side as follows.

         235 + 1 = 144 + 90 + (x \times 1) + (y \times 0)

           236 = 234 + x

            x = 236 -234

               = 2

So, now we balance the charge on both reactant and product side as follows.

              92 + 0 = 58 + 38 + (x \times 0) + (y \times -1)

                92 = 96 - y

                  y = 4

Thus, we can conclude that there are 2 neutrons and 4 beta-particles are produced in the given reaction.

Therefore, reaction equation will be as follows.

           ^{235}_{92}U + ^{1}_{0}n \rightarrow ^{144}_{58}Ce + ^{90}_{38}Sr + 2^{1}_{0}n + 4^{0}_{-1}\beta

8 0
3 years ago
The reaction for the decomposition of ammonia (NH3) can be written as shown. If a student starts with 21.7 g of ammonia, how man
Eddi Din [679]
3.88 grams will be released I believe
3 0
3 years ago
Read 2 more answers
Why is carbon dioxide used in fire extinguisher?
rjkz [21]
As Fire needs oxygen to burn, Carbon Dioxide Covers the fire like an blanket and cuts the contact of fire to the oxygen present in the air, So Fire stops burning.That is why Carbon Dioxide is Considere as the best Fire Extinguisher.
3 0
2 years ago
Read 2 more answers
Acids are and can destroy your skin and bones
sleet_krkn [62]

Answer:

This is true.

Explanation:

5 0
2 years ago
Other questions:
  • The primary forces of attraction between water molecules in h2o(l) are
    5·1 answer
  • PLZZ HELP!!!
    7·1 answer
  • How much heat is absorbed by 15.5 g of water when its temperature is increased from 20.0°C to 50.0°C? The specific heat of water
    9·2 answers
  • 3. How many grams of<br> CoCl, in 1/2 Liter would be<br> used to make a 1.0 molar<br> solution?
    15·1 answer
  • Will mark brainliest
    14·1 answer
  • Across<br> 1. the alkali metal in Period 4
    9·1 answer
  • A test of an automobile engine’s exhaust revealed that 3.5 g of NO2 was emitted in 10. minutes of operation. How many moles of N
    12·1 answer
  • Harvey mixes two liquids. Which observation of the new mixture most likely indicates a precipitate is O A. a cloudy appearance O
    9·1 answer
  • Why do atoms connect to eachother?
    11·2 answers
  • When 2.5 g of blue copper(ii) sulfate crystals were heated, 1.6 g of a white solid were left in tube A
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!