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Readme [11.4K]
4 years ago
11

SOMEONE PRETTY PLEASE FILL THIS OUT Its the ball drop project Lab Report Title: Formulate Hypothesis: What are your independent,

dependent and constant variable? Data and Observations Temperature Height Dropped Bounce Height Ball 1 Ball 2 Ball 3 Temperature Height Dropped Bounce Height Ball 1 : Ball 2: Ball 3: Discussion and Conclusions Type your discussion and conclusions here.
Physics
1 answer:
Tatiana [17]4 years ago
5 0
Please help me tooooornrjjfjenr
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Oil having a density of 930 kg/m^3 floats on
Zolol [24]

Answer:

0.0268 m

Explanation:

Draw a free body diagram of the block.  There are three forces: weight force mg pulling down, buoyancy of the oil B₁ pushing up, and buoyancy of the water B₂ pushing up.

Sum of forces in the y direction:

∑F = ma

B₁ + B₂ − mg = 0

ρ₁V₁g + ρ₂V₂g − mg = 0

ρ₁V₁ + ρ₂V₂ = m

ρ₁V₁ + ρ₂V₂ = ρV

ρ₁Ah₁ + ρ₂Ah₂ = ρAh

ρ₁h₁ + ρ₂h₂ = ρh

(930 kg/m³)h₁ + (1000 kg/m³)h₂ = (968 kg/m³) (4.93 cm)

Since the block is fully submerged, h₁ + h₂ = 4.93 cm.

(930 kg/m³) (4.93 cm − h₂) + (1000 kg/m³)h₂ = (968 kg/m³) (4.93 cm)

h₂ = 2.68 cm

h₂ = 0.0268 m

4 0
3 years ago
What does the second law of thermodynamics say about entropy apex?
sesenic [268]

The entropy of the universe is increasing


8 0
3 years ago
Read 2 more answers
A quantity of a gas has an absolute pressure of 400 kPa and an absolute temperature of 110 degrees kelvin. When the temperature
KiRa [710]

Answer:

A) 854.46 kPa

Explanation:

P₁ = initial pressure of the gas = 400 kPa

P₂ = final pressure of the gas = ?

T₁ = initial temperature of the gas = 110 K

T₂ = final temperature of the gas = 235 K

Using the equation

\frac{P_{1}}{T_{1}}=\frac{P_{2}}{T_{2}}

Inserting the values

\frac{400}{110}=\frac{P_{2}}{235}

P₂ = 854.46 kPa

3 0
3 years ago
A house has well-insulated walls. It contains a volume of 105 m3 of air at 305 K.
REY [17]

Answer: 85.46\ kJ

Explanation:

Given

Volume of air V=105\ m^3

Temperature of air T=305\ K

Increase in temperature \Delta T=0.7^{\circ}C

Specific heat for diatomic gas is C_p=\dfrac{7R}{2}

Energy required to increase the temperature is

\Rightarrow Q=nC_pdT\\\\\Rightarrow Q=n\times \dfrac{7R}{2}\times \Delta T\\\\\Rightarrow Q=\dfrac{7}{2}nR\Delta T\\\\\Rightarrow Q=\dfrac{7}{2}\times \dfrac{PV}{T}\times \Delta T\quad [\text{using PV=nRT}]

Insert the values

\Rightarrow Q=\dfrac{7}{2}\times \dfrac{1.01325\times 10^5\times 105}{305}\times 0.7\\ \text{Assuming air pressure to be atmospheric P=}1.01325\times 10^5\ N/m^2\\\\\Rightarrow Q=0.8546\times 10^5\\\Rightarrow Q=85.46\ kJ

6 0
3 years ago
Number of atoms in a formula​
zimovet [89]
The formula must have at least 2 atoms
4 0
3 years ago
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