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2 years ago

Where does most star formation occur in the milky way galaxy?

Physics

1 answer:

k0ka [10]2 years ago

4 0

Answer:

Star formation occurs most rapidly in the spiral arms, where the density of interstellar matter is highest.

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What is the definition of the word PER

Sedbober [7]

The best way to think of 'per' is as the equivalent of 'for each'.

4 0

3 years ago

How many 90-W, 120-V light bulbs can be connected to a 20-A, 120-V circuit without tripping the circuit breaker? (Note: This des

spayn [35]

Answer:

Explanation:

Total power of the circuit

P = V × I = 120 × 20 = 2400 W

Power of each bulb = 90 W

Number of bulbs which work without tripping

N = power of circuit / power of each bulb

N = 2400 / 90

N = 26.66

Number of bulbs should be integer so the number of bulbs be 26.

8 0

3 years ago

George Washington Gale Ferris, Jr., a civil engineering graduate from Rensselaer Polytechnic Institute, built the original Ferri

MA_775_DIABLO [31]

Answer:

$KE = 4217 J$

Explanation:

As we know that the wheel is rotated at constant angular speed

so here we can say that the angular speed is given as

$\omega = \frac{2\pi}{T}$

$\omega = \frac{2\pi}{2 \times 60}$

$\omega = 0.052 rad/s$

now the moment of inertia of all passengers is given as

$I = 36(60)(\frac{76}{2})^2$

$I = 3119040 kg m^2$

now work done by machine must be equal to kinetic energy of the system

so we will have

$KE = \frac{1}{2}I\omega^2$

$KE = \frac{1}{2}(3119040)(0.052)^2$

$KE = 4217 J$

7 0

3 years ago

A 1500 kg car moving with a speed of 20 m/s collides with a utility pole and is brought to rest in 0.30 s. Find the magnitude of

storchak [24]

Answer:

-100000 N.

Explanation:

Force: This can be defined as the product of the mass of a body and it's acceleration. The S.I unit of Force is Newton(N). The Formula of force is given as,

F = ma ........................... Equation 1

Where F = Average force exerted on the car, m = mass of the car, acceleration of the car, a = acceleration of the car.

a = (v-u)/t..................... Equation 2

Where v = Final velocity, u = Initial velocity, t = time.

Substitute equation 2 into equation 1

F = m(v-u)/t............. Equation 3

Given: m = 1500 kg, u = 20 m/s, v = 0 m/s (brought to rest), t = 0.3 s.

Substitute into equation 3

F = 1500(0-20)/0.3

F = 1500(-20)/0.3

F = -100000 N.

Note: The negative sign is due to the fact that the force exerted on the car by the pole is equal and opposite the force of the car.

7 0

3 years ago

What type of pressure is associated with more dense, sinking air?

Verizon [17]

B I hope it helps you

3 0

3 years ago

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