A cruise ship made a trip to Guam and back. The trip there took 12 hours and the trip

Which statement describes the formation of the Milky Way galaxy?

Oliga [24]

Answer:

A disk formed of a long trail of stars coiled into a spiral.

Explanation:

5 0

3 years ago

A 1200-kg car initially at rest undergoes constant acceleration for 9.4 s, reaching a speed of 11 m/s. It then collides with a s

Natalka [10]

To solve this problem we will apply the principle of conservation of energy and the definition of kinematic energy as half the product between mass and squared velocity. So,

$KE_i = KE_f$

$KE_f = \frac{1}{2} mv^2$

Here,

m = Mass

V = Velocity

Replacing,

$KE_f = \frac{1}{2} (12000)(11)^2$

$KE_f = 72600J$

Therefore the final kinetic energy of the two car system is 72.6kJ

8 0

4 years ago

Three different objects, all with different masses, are initially at rest at the bottom of a set of steps. Each step is of unifo

fgiga [73]

The definition of gravitational potential energy would gravitate allows to find the answers for the energy of each object on the highest rung of the ladder are:

a) expression for gravitational potential energy is $U_p = m g \ \Delta y$

b) Energy value

* Body 1 U_p = 82 J

* Body 2 U_p = 38.6 J

* Body 3 18.5 J

The gravitational potential energy is a configuration energy that represents the amount of work that the system can do for a given configuration, its expression is

$U_p = m g \ \Delta y$

Where $U_p$ is the gravitational potential energy, m the mass of the body and Δy the difference in height.

In this case it indicates that the minimum height is at the bottom and is equal to zero, the steps of a ladder have a height of approximately y = 15 cm = 0.15 m

They indicate the mass of the bodies are m₁ = 3.10 kg, the mass of the body 2 m₂ = 1.46 kg , the mass of the third object is not observed, suppose it is m₃ = 0.7 kg.

They indicate that the body is placed on the last step, suppose it is a standard 18-step ladder, therefore the total height is

y = # _ steps y_each step

y = 18 0.15

y = 2.70 m

the gravitational potential energy to the capacity of the body is

body 1

$U_p$ = m₁ g Δy₁

U_p = 3.10 9.8 (2.70 -0)

U_p = 82 J

body 2

U_p = 1.46 9.8 ( 2.7-0)

U_p = 38.6 J

body 3

U_pUp = 0.70 9.8 (2.7-0)

U_p = 18.5 J

In conclusion, using the definition of gravitational potential energy, we can find the answers for the energy of each object on the highest rung of the ladder are;

a) expression for gravitational potential energy is $U_p = m g \ \Delta y$

b) Energy value

* Body 1 U_p = 82.0 J

* Body 2 U_p = 38.6 J

* Body 3 U_p = 18.5 J

Learn more here: brainly.com/question/3884855

8 0

3 years ago

8) 8 resistor is connected in **parallel** with a 6 resistor. This

lyudmila [28]

Answer:

The equivalent resistance of the combination is 3.42 ohms.