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Aleks04 [339]
3 years ago
7

At the top of Mt. Everest (8850 m) a climber and their equipment (80 kg) has how much

Physics
1 answer:
joja [24]3 years ago
3 0
Because gravitational potential energy equals mass•acceleration due to gravity•height (mgh), we can calculate the potential energy by multiplying 80•9.8•8850, which results in 6,938,400 j.
You might be interested in
Oxygen is a diatomic gas. How many oxygen molecules are in 16 grams of oxygen?
Licemer1 [7]

1 mol of oxygen molecules = 2 * 16 = 32 grams.

x mol of oxygen = 16 grams

1/x = 32/16    Cross multiply

16 = 32x        Divide by 32

16/32 = x

x = 1/2 mol

1 mol of anything has 6.02 * 10^23 somethings (molecules in this case).

1/2 mol = 6.02 *10^23 / 2

1/2 mol = 3.01 * 10^23 molecules <<<< answer  

8 0
3 years ago
How do dominant alleles and recessive alleles differ?
Stells [14]

Answer:

A dominant allele produces a dominant trait in individuals who have one copy of the allele, that can come from one parent. To produces a recessive trait, the child must have two copies of the recessive allele, one from each parent.

Explanation:

The terms dominant and recessive describe the patterns of certain traits. They describe how likely it is for certain traits to pass from parent offspring in humans and animals. The two copies of each gene (alleles), can be slightly different from each other. The differences can cause variations in the protein that’s produced, Proteins affect traits, so variations in protein activity or expression can create different phenotypes.

A dominant allele produces a dominant phenotype (trait) in individuals who have one copy of the allele, which can come from one parent. For a recessive allele to produce a recessive phenotype, the individual must have two copies, one from each parent. A person with one dominant and one recessive allele for a gene will have a dominant phenotype. They are generally considered carriers of the recessive allele- the recessive allele is there, but the recessive phenotype is not.

8 0
3 years ago
When an object is dropped from the top of a tall cliff, your teacher tells you to use -10 m/s2 for the approximate acceleration
joja [24]
The displacement should be a negative value.  since your zero point is where you dropped it.  The answer is C
3 0
4 years ago
Read 2 more answers
What are all things made of:<br> a) atoms<br> b) elements<br> c) air
snow_lady [41]
The answer is A. Atoms. You're welcome. ;)
7 0
3 years ago
Read 2 more answers
A room with dimensions 7.00m×8.00m×2.50m is to be filled with pure oxygen at 22.0∘C and 1.00 atm. The molar mass of oxygen is 32
VashaNatasha [74]

1) 5765 mol

First of all, we need to find the volume of the gas, which corresponds to the volume of the room:

V=7.00 m\cdot 8.00 m\cdot 2.50 m=140 m^3

Now we can fidn the number of moles of the gas by using the ideal gas equation:

pV=nRT

where

p=1.00 atm=1.01\cdot 10^5 Pa is the gas pressure

V=140 m^3 is the gas volume

n is the number of moles

R is the gas constant

T=22.0^{\circ}+273=295 K is the gas temperature

Solving for n,

n=\frac{pV}{RT}=\frac{(1.01\cdot 10^5 Pa)(140 m^3)}{(8.314 J/molK)(295 K)}=5765 mol

2) 184 kg

The mass of one mole is equal to the molar mass of the oxygen:

M_m = 32.0 g/mol

so if we have n moles, the mass of the n moles will be given by

m : n = 32.0 g/mol : 1 mol

since n = 5765 mol, we find

m=\frac{(5765 mol)(32.0 g/mol)}{1 mol}=1.84\cdot 10^5 g=184 kg

3 0
4 years ago
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