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statuscvo [17]
2 years ago
14

A baseball player hits a ball with 36 N of force. With that force, it causes the ball to accelerate at 120 m/s2. What is the mas

s of the baseball?
Chemistry
1 answer:
irga5000 [103]2 years ago
8 0

Answer:

0.3 kg

Explanation:

This can be dealt with using (a simplified version of) Newton's Second Law:

Force = mass x acceleration

We need to re-arrange the formula to get the mass of the ball isolated, on its own side of the equation. So we get:

mass = force/acceleration

So, now we just need to substitute the number we do have to get:

mass = 36/120 = 0.3 kg

Hope I helped! :)

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A gas is collected at 30 Celsius and has a pressure of 200 kPa. What pressure would it exert if the temperature changed to 40 Ce
garik1379 [7]

Answer:

206.6\ \text{kPa}

Explanation:

P_1 = Initial pressure = 200 kPa

P_2 = Final pressure

T_1 = Initial temperature = 30^{\circ}\text{C}

T_2 = Final temperature = 40^{\circ}\text{C}

We have the relation

\dfrac{P_2}{P_1}=\dfrac{T_2}{T_1}\\\Rightarrow P_2=\dfrac{T_2}{T_1}P_1\\\Rightarrow P_2=\dfrac{40+273.15}{30+273.15}\times 200\\\Rightarrow P_2=206.6\ \text{kPa}

The pressure that would be exerted after the temperature change is 206.6\ \text{kPa}.

6 0
3 years ago
What is the density of a bar of soap with a mass of 715g, and a volume of 866cm3?
mihalych1998 [28]

Answer:

0.826 g/cm³

Explanation:

density = mass/volume

density = 715 g/866 cm³

density = 0.82564 g/cm³

Rounded to 3 significant figures: 0.826 g/cm³

4 0
3 years ago
How many moles of sulfur trioxide are formed from 3 moles of oxygen using the given
fiasKO [112]

Answer:

6 moles of SO₃ formed.

Explanation:

Given data:

Number of moles of SO₃ formed = ?

Number of moles of oxygen react = 3 mol

Solution:

Chemical equation;

2SO₂+ O₂      →   2SO₃

now we will compare the moles of oxygen and sulfur trioxide.

                             O₂            :            SO₃

                               1             :             2

                               3            :           2/1×3 = 6 moles

Thus, six moles of SO₃ will formed.

8 0
3 years ago
if the pressure of a gas at constant volume is 3.5 atm at 100°c, what will the pressure be if the tempature is changed to 250°c?
Degger [83]
Sorry don't know this one

6 0
3 years ago
9. Which of the following is true?
wlad13 [49]
The answer should be C
6 0
3 years ago
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