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iragen [17]
3 years ago
14

A worker uses a cart to move a load of bricks weighing 680 N a distance of 10 m across a parking lot.

Physics
2 answers:
8_murik_8 [283]3 years ago
8 0
The answer is B because force = work times distance so you would multiply 209N times 10m
NNADVOKAT [17]3 years ago
4 0
When you are finding work, the easiest way is to use the formula.

W = F*D

Where F is the force and D is the distance. Simply take the constant force of 209N and multiply it by the distance of 10m. Which will give you 2090J
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A gas cylinder holds 0.10 mol of O2 at 150 C and a pressure of 3.0 atm. The gas expands adiabatically until the pressure is halv
yKpoI14uk [10]

Answer:

V2 = 1.899*10^-3 m^3

T2 = 347.125 K

Explanation:

Using gas law, we know that

PV = nRT,

Where

V1 = 0.00115743 m^3.

gamma = 1.4

Now, when we solve for final volume, V2 we get

V2 = V1/((P2/P1)^(1/gamma))

V2 = 1.899*10^-3 m^3

Using the same law and method, when we try to solve for the temperature, we find that the final temperature, T2 is

T2 = T1*((V1/V2)^(gamma-1))

T2 = 347.125 K

3 0
3 years ago
A copper (Cu) atom has 29 protons, 34 neutrons, and 29 electrons. What is
Arturiano [62]
B. 29 atomic number is the number of protons
4 0
3 years ago
Why can't we breath under water?
Kipish [7]

We can certainly draw water into our lungs, even though
our brain screams "Don't do that !".

But our lungs can only separate oxygen out of air, not out of
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5 0
3 years ago
Read 2 more answers
Addition of _____________ to pure water causes the least increase in conductivity. A) weak bases B) acetic acid C) ionic compoun
geniusboy [140]

Answer:

D

Explanation:

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Organic compounds are mainly made of covalent bonds (around carbon) hence do not dissociate in water.

8 0
4 years ago
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Which equation can correctly express the relation between force, acceleration, and mass?
Roman55 [17]

Hi there!

\large\boxed{\text{a) F = m * a}}

According to Newton's Second Law, force is calculated with the formula:

F = m × a, where:

F = force (N)

m = mass (kg)

a = acceleration (m/s²)

7 0
3 years ago
Read 2 more answers
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