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prisoha [69]
4 years ago
8

A pendulum takes 0.5 second to complete one cycle. What is the pendulum’s period and frequency?

Physics
1 answer:
tatuchka [14]4 years ago
6 0

That "0.5 second" that it takers to complete one cycle is the period.

Frequency = 1/period = 1/0.5 = 2 Hz.

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How much time is needed for a 15,000 W engine to do 1,800,000 J of work? (Power: P = W/t)
vovikov84 [41]
To solve for this we need to use the formula P = W/T (Power = Work/Time).
Since we do not have time, we shall switch up the formula.
Our new formula is T = W/P (Time = Work/Power).
We have 1,800,000 J of work, and 15,000 W of power.
1,800,000/15,000 = 120.
It will take 120 (insert measure of time here).
I hope this helps!
4 0
3 years ago
Read 2 more answers
If the density of the fuel is 0.821 g/ml, what mass of fuel has the airplane taken on?
bija089 [108]

<em>Mass of fuel has the airplane took on = 167.89 kg</em>

\boxed{\boxed{\bold{Further~explanation}}}

Density is a quantity derived from the mass and volume

density is the ratio of mass per unit volume

With the same mass, the volume of objects that have a high density will be smaller than objects with a smaller type of mass

The unit of density can be expressed in g / cm3 or kg / m3

  • Density formula:

\large{\boxed{\bold{\rho~=~\frac{m}{V} }}}

ρ = density

m = mass

v = volume

A common example is the water density of 1 gr / cm3

If we look at fuel capacity data such as Airbus which has a maximum capacity of 204, 5 liters then the mass of fuel it carries is

ρ = 0.821 gr / ml = 0.821 kg / l

  • mass = ρ . V

mass = 0.821 kg / l . 204.5 liters

mass = 167.89 kg

So the mass of fuel carried by aircraft is 167.89 kg

\boxed{\boxed{\bold{Learn~more}}}

density and molarity of the solution brainly.com/question/8151398

the percent of acetic acid in the vinegar brainly.com/question/3001349

the mass percent brainly.com/question/5142462

the mass of the fuel in kilograms brainly.com/question/8312085

the relative density of the fuel

brainly.com/question/10889330

Keywords: density, mass, volume, aircraft, fuel, derivative quantities

7 0
4 years ago
Read 2 more answers
A proton in a cyclotron is moving with a speed of 2.97×107 m/s in a circle of radius 0.568 m. 1.67 × 10−27 kg is the mass of the
vivado [14]

Answer:

B = 0.546 T,  F = 2.59 10⁻¹² N

Explanation:

The magnetic force is

            F = q v x B

We can calculate the magnitude of the force and find the direction by the right hand rule

          F = q v B sin θ

Let's use Newton's second law

         F = m a

Acceleration is centripetal

         a = v² / r

We substitute

       q v B sin θ = m v² / r

The angle between the field and the radius of the circle is 90º so sin 90 = 1

        q B = m v / r

        B = m v / q r

Let's calculate ’

       B = 1.67 10⁻²⁷ 2.97 10⁷ / (1.60 10⁻¹⁹ 0.568)

        B = 0.546 T

The foce is

         F = q v B

         F = 1.60 10⁻¹⁹ 2.97 10⁷ 0.546

         F = 2.59 10⁻¹² N

3 0
3 years ago
Which describes and image that a plane mirrior can make
kati45 [8]

A plane mirror forms an upright virtual image.

5 0
3 years ago
Objects 1 and 2 attract each other with a gravitational force of 12 units. If the mass of Object 2 is tripled, then the new grav
olasank [31]

Explanation:

Fgravity = G*(mass1*mass2)/D².

G is the gravitational constant, which has the same value throughout our universe.

D is the distance between the objects.

so, if you triple one of the masses, what does that do to our equation ?

Fgravitynew = G*(3*mass1*mass2)/D²

due to the commutative property of multiplication

Fgravitynew = 3* G*(mass1*mass2)/D² = 3* Fgravity

so, the right answer is 3×12 = 36 units.

5 0
2 years ago
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