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SCORPION-xisa [38]

4 years ago

13

During the first stage of a multistage rocket, a satellite is:

1 answer:

lianna [129]4 years ago

7 0

B. sent through the atmosphere

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Average atomic must be

omeli [17]

I’m not quit sure sorry?

6 0

4 years ago

Read 2 more answers

The heart is the center of which of the following body systems?

faltersainse [42]

Answer:

Your heart is the main organ of your cardiovascular system, a network of blood vessels that pumps blood throughout your body.

Explanation:

6 0

2 years ago

A weight is attached to a spring suspended vertically from a ceiling. When a driving force is applied to the system, the weight

Nookie1986 [14]

Explanation:

This is a simple harmonic motion, produced by the action of a driving force that is directly proportional to the position of the body. Its position is described as a function of time by a sinusoidal function. According to Newton's second law and Hooke's law:

$F=m\frac{d^2x}{dt^2}\\F=-kx$

Here m is the object's mass, k is the spring constant and x is the displacement from the equilibrium position.

$m\frac{d^2x}{dt^2}=-kx\\\frac{d^2x}{dt^2}=-\omega_0^2x\\x=Asin(\omega_0 t-\phi)$

With $\omega_0=\sqrt{\frac{k}{m}}$ , called natural frequency, A is the amplitude, that is the maximum displacement for the equilibrium position and $\phi$ is the initial phase.

5 0

3 years ago

A spaceship is moving away from Earth at 0.892c when it fires a small rocket in the forward direction at 0.426c relative to the

Ipatiy [6.2K]

Answer:

The rocket's speed relative to Earth is $2.25\times10^{8}\ m/s$ .

Explanation:

Given that,

Speed of spaceship = 0.892c

Speed of rocket = 0.426c

We need to calculate the rocket's speed relative to Earth

Using formula of relative speed

$v=\dfrac{v_{s}-v_{r}}{1-(\dfrac{v_{r}v_{s}}{c^2})}$

Put the value into the formula

$v=\dfrac{0.892c-0.426c}{1-(\dfrac{0.892c\times0.426c}{c^2})}$

$v=c\dfrac{0.892-0.426}{1-0.379992}$

$v=c\times0.7516$

$v=2.25\times10^{8}\ m/s$

Hence, The rocket's speed relative to Earth is $2.25\times10^{8}\ m/s$ .

4 0

3 years ago

According to Dr. paul Narguizian professor of Biology and Science Education at California State University, ______ are generaliz

Mazyrski [523]

Answer:

I believe the correct answer would be A :)

Explanation:

3 0

3 years ago