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2 years ago

Read the lab procedure for a controlled experiment that looks at the effect of heat on the circumference of bicycle tires.

Physics

2 answers:

fgiga [73]2 years ago

8 0

Answer:

Step 5: Draw conclusions and write the final result

Explanation:

In controlled experiment, after all the steps of the experiment, the observations are written in the table.

In the given lab procedure for the effect of heat on the circumference of bicycle tires. In step 5, the recorded result must be analysed and conclusion must be drawn and final result must be written.

solniwko [45]2 years ago

4 0

Explanation :

To start any lab work initially, we have to know the theory behind the experiment. After then the experiment should be started. At the end, the readings must be taken carefully and some conclusion can be drawn.

Some of the steps are given :

Step 1: Pump up six identical bike tires to the recommended air pressure.

Step 2: Place three tires under heat lamps, and keep the other three tires at room temperature.

Step 3: After four hours, measure the circumference of each tire.

Step 4: Record your results in the table.

The fifth step should be :

Step 5: Write the result or conclusion that shows what you have done during the entire experiment.

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g A projectile is launched with speed v0 from point A. Determine the launch angle ! which results in the maximum range R up the

Svetlanka [38]

Answer:

The range is maximum when the angle of projection is 45 degree.

Explanation:

The formula for the horizontal range of the projectile is given by

$R = \frac{u^{2}Sin2\theta }{g}$

The range should be maximum if the value of Sin2θ is maximum.

The maximum value of Sin2θ is 1.

It means 2θ = 90

θ = 45

Thus, the range is maximum when the angle of projection is 45 degree.

If the angle of projection is 0 degree

R = 0

It means the horizontal distance covered by the projectile is zero, it can move in vertical direction.

If the angle of projection is 30 degree.

$R = \frac{u^{2}Sin60 }{9.8}$

R = 0.088u^2

If the angle of projection is 45 degree.

$R = \frac{u^{2}Sin90 }{g}$

R = u^2 / g

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2 years ago

How long does it take for the velocity of the rain drop to reach 99% of its terminal velocity? (assume the conditions from part

vodomira [7]

If you think about it its part a and b

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2 years ago

A 1000-kg car is slowly picking up speed as it goes around a horizontal curve whose radius is 100 m. The coefficient of static f

Snezhnost [94]

Answer:

18.5 m/s

Explanation:

On a horizontal curve, the frictional force provides the centripetal force that keeps the car in circular motion:

$\mu mg = m\frac{v^2}{r}$

where

$\mu$ is the coefficient of static friction between the tires and the road

m is the mass of the car

g is the gravitational acceleration

v is the speed of the car

r is the radius of the curve

Re-arranging the equation,

$v=\sqrt{\mu gr}$

And by substituting the data of the problem, we find the speed at which the car begins to skid:

$v=\sqrt{(0.350)(9.8 m/s^2)(100 m)}=18.5 m/s$

7 0

2 years ago

Read 2 more answers

The water level in a tank is 20 m above the ground. a hose is connected to the bottom of the tank, and the nozzle at the end of

Damm [24]

Answer:

P_(pump) = 98,000 Pa

Explanation:

We are given;

h2 = 30m

h1 = 20m

Density; ρ = 1000 kg/m³

First of all, we know that the sum of the pressures in the tank and the pump is equal to that of the Nozzle,

Thus, it can be expressed as;

P_(tank)+ P_(pump) = P_(nozzle)

Now, the pressure would be given by;

P = ρgh

So,

ρgh_1 + P_(pump) = ρgh_2

Thus,

P_(pump) = ρg(h_2 - h_1)

Plugging in the relevant values to obtain;

P_(pump) = 1000•9.8(30 - 20)

P_(pump) = 98,000 Pa

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2 years ago

When the voltage and current have _____ polarities in a pure capacitive circuit, the capacitor is discharging and the energy is

tangare [24]

Answer:opposite

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