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4 years ago

I need a science fair project that doesn't need anything on the pic and it can be about any subject thanks.

Physics

1 answer:

tigry1 [53]4 years ago

7 0

you could make a self propelled car all you need is cardboard, wheels, and a balloons or rubber bands

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A pushing force that squeezes an object is called a ____ force.

Yanka [14]

The Answer Is Push
Hope This Helps !

3 0

3 years ago

Two tuning forks struck simultaneously produce a beat with a frequency of 2 Hz. The frequency of one fork is 364 Hz. What are th

Kitty [74]

Answer: If the other two frequencies are F and F1 then;

F-364=2

F=364+2

F=366Hz

364-F1=2

F1=364-2

F1=362Hz

Hence the two possible frequencies are 362Hz and 366Hz

Explanation:

5 0

4 years ago

A +26.3 uC charge qy is repelled by a force

Musya8 [376]

Answer:

+1.46×10¯⁶ C

Explanation:

From the question given above, the following data were obtained:

Charge 1 (q₁) = +26.3 μC = +26.3×10¯⁶ C

Force (F) = 0.615 N

Distance apart (r) = 0.750 m

Electrical constant (K) = 9×10⁹ Nm²/C²

Charge 2 (q₂) =?

The value of the second charge can be obtained as follow:

F = Kq₁q₂ / r²

0.615 = 9×10⁹ × 26.3×10¯⁶ × q₂ / 0.750²

0.615 = 236700 × q₂ / 0.5625

Cross multiply

236700 × q₂ = 0.615 × 0.5625

Divide both side by 236700

q₂ = (0.615 × 0.5625) / 236700

q₂ = +1.46×10¯⁶ C

NOTE: The force between them is repulsive as stated from the question. This means that both charge has the same sign. Since the first charge has a positive sign, the second charge also has a positive sign. Thus, the value of the second charge is +1.46×10¯⁶ C

5 0

3 years ago

how many days does it take a team of drivers to drive a truck california and back to lansing if the drivers average 15m/s includ

malfutka [58]

4days and 12hours

Explanation:

Given parameters:

Average speed = 15m/s

Distance = 1800 miles

Unknown:

Number of days = ?

Solution:

Speed is the rate of change of distance with time;

Speed = $\frac{distance}{time}$

Since the unknown is number of days, it is a measure of time:

Time = $\frac{distance }{speed}$

The distance from California to Lansing is 1800miles. The journey takes the truck drivers to and fro. It is a two way trip;

Total distance = 1800 miles x 2 = 3600miles

We need to convert miles to meters since that is the unit we can conveniently work with;

1 mile = 1609.34m

3600 miles = 3600 x 1609.34

= 5793638m

Inputting the values in the equation:

Time = $\frac{ 5793638}{15}$ = 386242.53s

Now we need to convert to day;

In a day, = 60 x 60 x 24 = 86,400s

1 day = 86400s

Therefore;

The number of days = $\frac{386242.53}{86400}$ = 4.47days

This implies that it will take them 4 days and approximately 12 hours.

learn more:

speed brainly.com/question/10048445

#learnwithBrainly

7 0

3 years ago

Air is warmed and moisten as it moves through both the mouth and nasal passages.

Alexxx [7]

Well, in my own personal case, I can actually move the air in either
direction through both of those.

When I move the air inward from the outside, it's warmed and moistened.

When I move it outward from the inside, it's not.

3 0

3 years ago

Read 2 more answers