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nikklg [1K]
4 years ago
14

In order to increase the rate of acceleration of a car, you should apply more

Physics
1 answer:
Law Incorporation [45]4 years ago
7 0

Answer:

True

Explanation:

Because with more force the car will move faster than it did before!!!

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A bird is about 6.26.2 in.​ long, with a​ thin, dark bill and a​ wide, white wing stripe. If the bird can fly 9292 mi with the w
Trava [24]

Answer:

209 mph

Explanation:

V = Speed of bird in still air

v = Speed of wind = 44 mph

Consider the motion of the bird with the wind

D_{1} = distance traveled with the wind = 9292 mi

t_{1} = time taken to travel the distance with wind

Time taken to travel the distance with wind is given as

t_{1} = \frac{D_{1}}{V + v}

t_{1} = \frac{9292}{V + 44}                              eq-1

Consider the motion of the bird with the wind

D_{2} = distance traveled against the wind = 6060 mi

t_{2} = time taken to travel the distance against wind

Time taken to travel the distance against wind is given as

t_{2} = \frac{D_{2}}{V + v}

t_{2} = \frac{6060}{V - 44}                              eq-2

As per the question,

Time taken with the wind = Time taken against the wind

t_{1} = t_{2}

\frac{9292}{V + 44} = \frac{6060}{V - 44}

(9292) (V - 44) = (6060) (V + 44)

9292V - 408848 = 6060V + 266640

3232V = 675488

V = 209 mph

5 0
3 years ago
A proton and an alpha particle are momentarily at rest at adistance r from each other. They then begin to move apart.Find the sp
Arte-miy333 [17]

Answer:

The unknown quantities are:

E and F

The final velocity of the proton is:

√(8/3) k e^2/(m*r)

Explanation:

Hello!

We can solve this problem using conservation of energy and momentum.

Since both particles are at rest at the beginning, the initial energy and momentum are:

Ei = k (q1q2)/r

pi = 0

where k is the coulomb constant (= 8.987×10⁹ N·m²/C²)

and q1 = e and q2 = 2e

When the distance between the particles doubles, the energy and momentum are:

Ef = k (q1q2)/2r + (1/2)m1v1^2 + (1/2)m2v2^2

pf = m1v1 + m2v2

with m1 = m,   m2 = 4m,    v1=vf_p,    v2 = vf_alpha

The conservation momentum states that:

pi = pf      

Therefore:

m1v1 + m2v2 = 0

That is:

v2 = (1/4) v1

The conservation of energy states that:

Ei = Ef

Therefore:

k (q1q2)/r = k (q1q2)/2r + (1/2)m1v1^2 + (1/2)m2v2^2

Replacing

      m1 =  m, m2 = 4m, q1 = e, q2 = 2e

      and   v2 = (1/4)v1

We get:

(1/2)mv1^2 = k e^2/r + (1/2)4m(v1/4)^2 =  k e^2/r + (1/8)mv1^2

(3/8) mv1^2 = k e^2/r

v1^2 = (8/3) k e^2/(m*r)

3 0
3 years ago
How long would a pendulum need to be to have a period of 3.00 s? (Unit = m)​
olga55 [171]

Answer:2.24

Explanation:

Trust

5 0
3 years ago
Compared to yellow light, orange light has
pychu [463]
C. a longer wavelength; if you look at the electro magnetic spectrum of light you will see why
5 0
3 years ago
Read 2 more answers
What produces the magnetic field of an electromagnet?
andrew11 [14]

An electromagnet is a magnet whose magnetic field is created when electricity is flowing.

<h2>What is an electromagnet?</h2>

A device consisting of an iron or steel core that is magnetized by electric current in a coil that surrounds it.

<h2>What is magnetic field?</h2>

Magnetic force is defined as the space surrounding a magnet in which magnetic force is exerted.

<h2>What is electricity?</h2>

A form of energy created by charged or moving <em>electrons</em> or <em>protons</em>.

<h2>What does it mean when electricity is flowing?</h2>

The movement of energy is called a flow. The flow of electricity through a wire can be thought of as being similar to the flow of water through a pipe. Electricity usually flows in specially protected wires, but it can also move around using many other objects.

<h2>How does a magnetic field and the flow of electricity relate?</h2>

The electromagnetic force produces two related phenomena: electricity and magnetism. They combine to generate electromagnetism. A magnetic field is created by a moving electric charge. Electric charge movement is induced by a magnetic field, resulting in an electric current.

<h2>What produces a magnetic field? </h2>

Electric charges in motion. Charged particles in motion have both an electric field and magnetic field associated with them.

<h2>How does an electromagnet work?</h2>

An electric current flows through a coil of wire. This produces a magnetic field in the wire. The sides of the coil that carry current at 90 degrees to the magnetic field experience a force as they interact with the magnetic field.

4 0
2 years ago
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