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Anastasy [175]
2 years ago
14

a. As you coast down a hill on your bicycle, you accelerate at 0.5 m/s2. If the total mass of your body and the bicycle is 80 ki

lograms what is the net force pulling you down the hill (gravity - friction)?
Physics
1 answer:
zalisa [80]2 years ago
7 0
According to Newton’s second law of motion:
F=ma
=80*0.5
=40N
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Hello, I want to ask. . anyone knows the answer.
stealth61 [152]
I would say D. because you round to the nearest whole number and 0.04 is way less than 0.5 which is a good rounding up number.
5 0
2 years ago
Describe the relationship between the pressure and volume of a gas when temperature and mass are constant
mr_godi [17]

Answer:

The product of Pressure and Volume is a constant.

Explanation:

We know the Ideal gas equation,

PV  =  nRT,

where,

P -  Pressure of the gas

V -  Volume of the gas

n -  No. of moles of the gas taken

R -  Universal Gas Constant.

T - Temperature of the gas.

We know that ,  n  =  \frac{wt}{Mwt}

where, wt - Mass of gass ; Mwt - Molecular weight of the gas.

We are given the weight of the gas remains constant (wt is a constant)

Therefore as n = \frac{wt}{Mwt},(where both wt and Mwt are constants)

n is a constant in this process.

Universal gas constant is a constant

Given temperature is a constant.

Therefore,

As, PV = nRT,  (where n,R,T are constants),

PV is a constant.

Therefore we can say,

PV = k,  for some constant k.

If we plot a graph for P vs V , we get a Rectangular Hyperbola( One of the general forms of a Rectangular Hyperbola is xy = c)

5 0
3 years ago
What is always included in a comparative investigation?
iragen [17]
A comparison is always included in a comparative investigation. Comparative investigation collects data about different objects, features, organisms, sometimes under a different set of conditions to compare them. The similarities and differences that occur during a set of time or conditions are observed and compared.
4 0
2 years ago
Read 2 more answers
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Natalka [10]

Answer:

Option C

Explanation:

Frequency determines the number of waves that pass through any defined point in a given time period.

Frequency of 1 hertz means that one wave travels through a given point in one second.

By the above definition, we can say

Frequency

= \frac{30}{10} \\=3

Hence, option C is correct

8 0
2 years ago
Select all that apply. a nonmetal: is more likely to attract an electron than a metal is more likely to lose an electron than a
sineoko [7]
The correct answer is
<span>requires more energy to lose an electron than a metal 

In fact, the main characteristics of the metals is that they have many electrons free to move through the lattice of the material, so it is easy for a metal to gain/lose electrons. On the contrary, non-metals don't have free electrons, so more energy is required in order to rip an electron from the atoms of the material.</span>
4 0
3 years ago
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