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3 years ago

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A spring is hung from the ceiling. When a block is attached to its end, it stretches 2.4 cm before reaching its new equilibrium

length. The block is then pulled down slightly and released. What is the frequency of oscillation?

1 answer:

slavikrds [6]3 years ago

4 0

24 cbcfhjbbjhsshdhshgaGbsned

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A reaction taking place in a container with a piston-cylinder assembly at constant temperature produces a gas, and the volume in

djverab [1.8K]

Answer:

60.4 J

Explanation:

The work done by the gas is given by:

$W=p(V_f-V_i)$

where

p is the gas pressure

$V_f$ is the final volume of the gas

$V_i$ is the initial volume

We must convert all the quantities into SI units:

$p=860 torr \cdot \frac{1.013\cdot 10^5 pa}{760 torr}=1.146\cdot 10^5 Pa$

$V_i = 127 mL = 0.127 L = 0.127 dm^3 = 0.127 \cdot 10^{-3}m^2$

$V_f = 654 mL = 0.654 L = 0.654 dm^3 = 0.654 \cdot 10^{-3}m^2$

So the work done is

$W=(1.146\cdot 10^5 Pa)(0.654\cdot 10^{-3} m^3-0.127\cdot 10^{-3} m^3)=60.4 J$

4 0

3 years ago

The diagram below shows a person swinging a hammer.

sleet_krkn [62]

4 because its not yet moving. It has kinetic energy, it just hasn’t been used yet.

5 0

3 years ago

Read 2 more answers

A force 1500 n to a 100 kg car . what is the acceleration of the car

dezoksy [38]

F = ma

F 1500N
m = 100 kg

1500 = 100 * a

Solve for a.

3 0

3 years ago

What did Niels Bohr discover?

saveliy_v [14]

Niels Bohr discovered of the nucleus and developed an atomic model

PLEASE RATE AS THE BRAINLIEST ANSWER! THANK YOU! :)

5 0

4 years ago

A rock is placed on a balance and its mass is determined as 18.3 g. When the rock is then placed in a graduated cylinder that or

Crank

Answer : The density of rock reported should be, 3.1 g/mL

Explanation :

Mass of rock = 18.3 g

Original volume of water = 11.1 mL

New volume of water = 17.0 mL

First we have to calculate the volume of rock.

Volume of rock = New volume of water - Original volume of water

Volume of rock = 17.0 mL - 11.1 mL

Volume of rock = 5.9 mL

Now we have to determine the density of rock.

Formula used :

$\text{Density of rock}=\frac{\text{Mass of rock}}{\text{Volume of rock}}$

$\text{Density of rock}=\frac{18.3g}{5.9mL}=3.1g.mL$

Thus, the density of rock reported should be, 3.1 g/mL

8 0

4 years ago