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denpristay [2]
3 years ago
11

SP1a. What is the average velocity of a car that travels 30 kilometers due west in 0.50 hour?

Physics
1 answer:
Mila [183]3 years ago
3 0

Answer:

16.67 m/s

Explanation:

v =  \frac{d}{t}

Change kilometers to meters and hour to seconds

=30000m/1800s

=16.67 m/s

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The ability to store electrical energy is called<br><br> Voltage <br> Capacitance
NARA [144]
Hey!!

here is your answer>>>

Volaltage = It is the power to push the electrons

Capacitance = The ability to store electrical energy!.

Hope my answer helps!
5 0
3 years ago
Find an equation relating the rate of change of kinetic energy to the rate of change of velocity
alexdok [17]

Answer:

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Explanation:

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4 0
3 years ago
A Foucault pendulum consists of a brass sphere with a diameter of 31.0 cm suspended from a steel cable 11.0 m long (both measure
kozerog [31]

Answer:

43.7 °C

Explanation:

\alpha_b = Coefficient of linear expansion of brass = 18\times 10^{-6}\ ^{\circ}C

\alpha_s = Coefficient of linear expansion of steel = 11\times 10^{-6}\ ^{\circ}C

L_{0b} = Initial length of brass = 31 cm

L_{0s} = Initial length of steel = 11 m

\Delta L = Total change in length = 3 mm

Total change in length would be

\Delta L=\Delta L_b+\Delta L_s\\\Rightarrow \Delta L=L_{0b}\alpha_b\Delta T+L_{0s}\alpha_b\Delta T\\\Rightarrow \Delta T=\frac{\Delta L}{L_{0b}\alpha_b+L_{0s}\alpha_b}\\\Rightarrow \Delta T=\frac{0.003}{0.31\times 18\times 10^{-6}+11\times 10^{-6}\times 11}\\\Rightarrow \Delta T=23.7\ ^{\circ}C

\Delta T=23.7\\\Rightarrow T_f-T_i=23.7\\\Rightarrow T_f=23.7+T_i\\\Rightarrow T_f=23.7+20\\\Rightarrow T_f=43.7\ ^{\circ}C

The final temperature is 43.7 °C

6 0
3 years ago
Identify some common fuels
kozerog [31]
On a worldwide scale, the most common fuels are wood, grass, peat, coal, and animal fats and oils.
4 0
3 years ago
Read 2 more answers
An object weighs 39.36 newtons. What is its mass if a gravitometer indicates that g = 9.83 m/s2?
CaHeK987 [17]
The force applied to an object is said to be a product of its mass and the acceleration. For this case, acceleration is the reading on the gravitometer. We calculate as follows:

F = mg
39.36 N = m(9.83 m/s^2)
m = 4.00 kg

Hope this answers the question. Have a nice day.
6 0
4 years ago
Read 2 more answers
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