A space vehicle is coasting at a constant velocity of 22.3 m/s in the y direction relative to a space station. The pilot of the vehicle fires a RCS (reaction control system) thruster, which causes it to accelerate at 0.277 m/s^2 in the x direction. After 46.6 s, the pilot shuts off the RCS thruster. After the RCS thruster is turned off, find:

a. The magnitude.
b. The direction of the vehicle's velocity relative to the space station. Express the direction as an angle (in degrees) measured from the y direction.

Answer:

Not sure which statements were give to you for this question, but the vehicle's acceleration from noon to 2:00 PM was zero, the vehicle had a positive acceleration between 2:00 pm and 3:00 pm, and the vehicle had a negative acceleration at 4:30 PM.

Explanation:

From 12:00 PM to 2:00 PM, the vehicle traveled at a constant velocity of 70 MPH, meaning there wasn't any change to the speed. The velocity remained the same. An hour later, the velocity of the vehicle increased to 80 MPH, and finally at 4:30 PM, the velocity of the car decreased and was at 40 MPH.

Answer:

The thinking distance depends on the reaction time of the driver which could can affected by alcohol, distractions and tiredness. A faster speed increases both thinking  distance, increasing the total stopping distance.

A faster pace extends both the thinking distance and the total stopping distance.

Given that,
To justify, the driver's reaction time affects the thinking distance.

The reaction time of an organism is a measure of how quickly it responds to a signal. The time interval between the presentation of the stimulus and the appearance of the appropriate voluntary response in the subject is defined as the RT.

The thinking distance is determined by the driver's reaction time, which can be influenced by drinking, distractions, and fatigue. A higher speed increases both thinking distance and total stopping distance.

Thus, A faster pace extends both the thinking distance and the total stopping distance.

Learn more about reaction time here:
https://brainly.com/question/13693578

#SPJ2

Answer:

Yes

Explanation:

Beacause u have 25 kg,and falls off from a cliff hanger cause its too bit heavy

Answer:

113.29 m/s

Explanation:

I think its this answer choice, hope I'm not too late answering.

Answer:

mine is 9.75 so take that as you will

Explanation:

Answer:

25,300,000,000,000 miles away

Answer:

15 seconds

Explanation:

Given that the initial speed of a cannon ball is 0.20 km/s. If the ball is to strike a target that is at a horizontal distance of 3.0 km from the cannon. The minimum time of flight for the ball can be calculated by using the formula for speed

speed = distance / time

Where

speed = 0.2 km/s

distance = 3 km

Substitute the two parameters into the formula

0.2 = 3 / t

make t the subject of the formula

t = 3/0.2

t = 15 s

Therefore, the minimum time of flight for the ball is 15 seconds

(a) The angle of refraction for the ray inside the glass will be 19.26°.

(b)  It  is proved that the rays in the air on either side of the glass are parallel to each other

When a ray of light passes through a different medium some part of the light gets reflected and some part gets refracted by changing its angle in the different medium this angle is called the angle of refraction and the phenomenon is called refraction of light.

It is given that,

The angle of incidence = 30.0°

Index of reflection of glass = 1.52

(a) For finding the angle of the refraction for the ray inside the glass we will use Snell's Law

[tex]\dfrac{Sini}{Sinr} =\mu[/tex]

Put the value into the formula

[tex]Sinr=\dfrac{Sini}{\mu} =\dfrac{Sin30}{1.52}[/tex]

[tex]r=Sin^{-1}(0.329)[/tex]

[tex]r=19.26^o[/tex]

(b) Now for proof of  [tex]Sin\ i =Sin\ e[/tex]

The incident ray and emerging ray are equal then the ray will be parallel.

We need to prove that the rays in the air on either side of the glass are parallel to each other.

Using the formula for emerging ray

[tex]\dfrac{Sin\ e}{Sin\ r} = \mu[/tex]

[tex]Sin\ e=\mu Sin \ r=1.52\times Sin19.26[/tex]

By putting the values in the formula

[tex]e=Sin^{-1}(1.52\times0.3289)[/tex]

[tex]e=30^o[/tex]

Since the incident angle and the emerging angle are equal

[tex]Sin \ i=Sin \ e[/tex]

Thus incident and emerging rays) are parallel to each other.

(a) So the angle of refraction for the ray inside the glass will be 19.26°.

(b)  It  is proved that the rays in the air on either side of the glass are parallel to each other

To know more about Snell's Law follow

https://brainly.com/question/15838784

The question is incomplete. Here is the complete question.

Lightning bolts can carry currents up to approximately 20kA. We can model such a current as the equivalent of a very long, straight wire.

(a) If you were unfortunate enough to be 5.5m away from such a lightning bolt, how large a magnetic field would you experience?

(b) How does this field compare to one you would experience by being 5.5cm from a long, straight household current of 5A?

Answer: (a) B = 7.27 x 10⁻⁴ T

              (b) Approximately 40 times higher than a household one.

Explanation: Using Biot-Savart Law, the magnetic field in a straight, long wire is given by

[tex]B=\frac{\mu_{0}I}{2.\pi.r}[/tex]

where:

[tex]\mu_{0}[/tex] (permeability of free space) = [tex]4.\pi.10^{-7}[/tex]T.m/A

(a) If lightning bolt is compared to a long and straight wire, then magnetic field is

[tex]B=\frac{4.\pi.10^{-7}.10.10^{3}}{2.\pi.5.5}[/tex]

B = 7.27 x 10⁻⁴ T

The magnitude of magnetic field in a lightning bolt is 7.27 x 10⁻⁴ T

(b) Magnetic field in a household wire will be

[tex]B=\frac{4.\pi.10^{-7}.5}{2.\pi.5.5.10^{-2}}[/tex]

B = 1.82 x 10⁻⁵ T

Comparing fields:

[tex]\frac{7.27.10^{-4}}{1.82.10^{-5}}[/tex] ≈ 40

The filed for a lightning bolt is approximately 40 times higher than for a household wire.

Explanation:

v=592×2.5

v=1480m/s

ii) v=1480m/s, wavelength= 5m, f=?

f=1480/5

f=296Hz

The answer is 13.5 because 27÷3.0=13.5

Answer:

between point c and point D

Answer:

Teeth

Explanation:

The main parts of geards are the base and the teeth.  When two wheels are combined and joined by a belt, the larger wheel will rotate more slowly than the smaller wheel, but it will rotate with a greater force. A big wheel with twice the circumference of a small wheel will rotate with twice the force and half the speed of the small wheel.

Gears are connected together in various ways to transmit motion and force. Two connected gears of different sizes will cause one of the gears to turn faster or slower than the other. One gear will also move the force in a different direction than the other.

Gear ratio is the number of teeth on the following gear divided by the number of teeth on the driving gear (the gear inputting the motion).

A low gear ratio = more speed = less force

A high gear ratio = less speed = more force

Please give me brainliest if this helps!

Answer:

Teeth

Explanation:

Answer:

We are given:

m1 = 500 kg             m2 = 1500 kg

v1(initial) = x m/s       v2(initial) = 0 m/s

v1(final) = 20 m/s      v2(final) = 20m/s

According the the law of conservation of momentum:

m1v1(initial) + m2v2(initial) = m1v1(final) + m2v2(final)

Plugging the values in this formula:

(500*x) + (1500 * 0) = (500 * 20) + (1500 * 20)

500x = 20(1500 + 500)

500x = 20(2000)

x = 20 * 4

x = 80 m/s

Therefore, the car was initially moving at a velocity of 80 m/s

Answer:

Based on the answer choices provided, the correct answer is:

C, The higher the spring constant, the greater the elastic potential energy.

Explanation:

The spring constant is best defined as the measure of a spring's resistance to force (in regards to factors such as stretching and compression).

Thus, the higher the spring constant, the stiffer the string - this equates to greater elastic potential energy (think of stretching a rubber band or using it as a slingshot).

Hope this helps!

Answer:

C.) The higher the spring constant, the greater the elastic potential energy.

Explanation:

Answer:

z1/z2

Explanation:

we have no quantum effects therefore we can make use of Maxwell Boltzmann distribution in the description of this system.

using the boltzman distribution the probability of finding a particle in energy state

[tex]P_{ei} = \frac{gie^{-ei/kol} }{z}[/tex]

we have

gi to be degeneration of the ith state

ei to be energy of ith state

[tex]z=e^{-ei/kbt}[/tex] summation

[tex]P_{ope} = \frac{e^{-ei/kBt} }{z} = \frac{Z_{1} }{Z}[/tex]

We have R to be equal to

[tex]\frac{P_{ope} }{P_{Close} } = \frac{Z1}{Z2}[/tex]

Answer:

a = 16.5 x 10⁻⁶ m = 16.5 μm

Explanation:

Here we will use the diffraction equation:

y = mλL/a

where,

y = distance between two consecutive dark fringes = 5.34 cm = 0.0534 m

m = order of diffraction = 1

λ = wavelength of light = 633 nm = 6.33 x 10⁻⁷ m

L = Distance between hair and screen = 1.4 m

a = thickness of hair = ?

0.0534 m = (1)(6.33 x 10⁻⁷ m)(1.4 m)/(a)

a = (6.33 x 10⁻⁷ m)(1.4 m)/(0.0534 m)

a = 16.5 x 10⁻⁶ m = 16.5 μm

Answer:

Substance X transfers thermal energy to substance Y through conduction. What is an accurate conclusion about the condition of both substances before conduction occurred? Substance X's molecules were faster than substance Y's.

Explanation:

An accurate conclusion about the condition of both substances before conduction occurred is substance X’s molecules were faster than substance Y’s.

Thermal energy is the energy released in the form of heat. It manifests itself by releasing heat. It results from the atoms' movement or vibration, so it displays the system's internal energy. We define thermal energy as part of the internal energy of a system.

It is an extensive quantity, it depends on the size of the system, or on the amount of substance it contains. The SI unit of thermal energy is the joule (J). It is the energy contained within the system, excluding the kinetic energy of motion of the system as a whole and the potential energy of the system. Thermal energy is often classified into various types on the basis of how this internal energy, in the form of heat, is transferred from one body to another.

The correct answer is option C.

Learn more about thermal energy, refer:

https://brainly.com/question/9621699

#SPJ2

Answer : The volume of water in graduated cylinder is 15.5 mL.

Explanation :

As we know that for the measurement of the volume of liquid in graduated cylinder are shown by placing the graduated cylinder on the flat surface and then view the height of the liquid in the graduated cylinder with the naked eyes directly level with the liquid.

The liquid will tend to curve downward that means this curve is known as the meniscus.

In the case of colored liquid, we are always read the upper meniscus of the liquid for the measurement.

In the case of colorless liquid, we are always read the lower meniscus of the liquid for the measurement.

In the given image, there are 5 larger and 5 smaller division between the 15 and 20 and the solution is colored. The value of larger division is 1 mL and smaller division is 0.5 mL.

So, we will read the upper meniscus of the liquid for the measurement.

Hence, the volume of water in graduated cylinder is 15.5 mL.

Answer:

Day and night are due to the Earth rotating on its axis, not its orbiting around the sun. The term 'one day' is determined by the time the Earth takes to rotate once on its axis and includes both day time and night time.

Explanation:

Answer:

Day and night are due to the Earth rotating on its axis, not its orbiting around the sun. The term 'one day' is determined by the time the Earth takes to rotate once on its axis and includes both day time and night time.

note:

your welcome and please answer my question its called part 1 math work if you could do that i will give you 40 points

Answer: from the vertical, one should aim  86.6°

Explanation:

height of the center of object = 7.0 m - 0.05 m = 6.95 m

now let the bullet hits centre at point A height x meters from the ground

also let t be the time taken for the bullet to hit the object

so distance travelled by the target will be

d = h - x = 6.95 - x

now using the equation of motion

d = 1/2gt²

so 1/2gt² = 6.95 - x

x = 6.95 - 1/2gt² .........let this be equ 1

let angle of fire be ∅

so v(cos∅) × t = 100

our velocity v is 1200 ft/sec = 365.76 m/s

365.76(cos∅) × t = 100 ........equ 2

also vertical position of the bullet after t is

y = y₀ + c(sin∅)t - 1/2gt²

y = 1 + 365.76(sin∅)t - 1/2gt² ----- equ 3

After time t. the vertical position x and y are same, else the bullet wouldn't have strike target at centre, so;

x = y

we substitute

equ 1 = equ 3

6.95 - 1/2gt² = 1 + 365.76(sin∅)t - 1/2gt²

6.95 - 1 = 365.76(sin∅)t - 1/2gt² +  1/2gt²

5.95 = 365.76(sin∅)t

t = 5.96 / 365.76(sin∅)

now input the above equ  into equ 2

365.76(cos∅) ×  5.96/365.76(sin∅) = 100

5.95(cos∅)/sin∅ = 100

tan∅ = 5.95/100 = 0.0595

∅ =  3.40°

therefore from the vertical, one should aim (90° - 3.40°) = 86.6°

Answer:  The thermal energy transfer is When a fluid, such as air or a liquid, is heated and then travels away from the source, it carries the thermal energy along.

Explanation: heat transfer is called convection.  hopefully this was helpful.

I'm pretty sure your answer should be

C. Riding uphill, the boy's work is converted into potential energy, riding on level ground, his work is converted into kinetic energy.

Answer:

The kilogram (kg) is the SI unit for mass. Not weight.

So when you say « heavier » and mention kg, I would assume you’re talking about mass.

The mass of 1 kg of feathers and 1 kg ok bricks are identical.

And if you want an answer to your question comparing the weight on Earth of those 2 items, in vacuum of one kilogram of feathers would have exactly the same weight as one kilogram of bricks.

Explanation:

Hope this helps! <3

Answer:

The first one

Explanation:

Answer:

The water being pumped is at atmospheric pressure and comes from an unconfined aquifer.

Answer:

The water being pumped is at atmospheric pressure and comes from an unconfined aquifer.

Explanation:

Answer:

True

Explanation:

Whenever electrons are transferred between objects, neutral matter becomes charged. For example, when atoms lose or gain electrons they become charged particles called ions. Three ways electrons can be transferred are conduction, friction, and polarization. In each case, the total charge remains the same.

I tried, hope this helps :)

* I might be wrong though

Answer:

it's uhh 0.05 my g yup that's the answer

Explanation:

5

Answer:

(b) 0.0176

(c) -0.0124

(d) 209

(e) Also comes to rest

(a) 2.38

(b) 5.95

Explanation:

(a) Your answer is correct.  Angular momentum is conserved, so as the lighter beetle moves clockwise, the heavier turntable will move counterclockwise at a slower speed.

(b/c) Initial angular momentum = final angular momentum

L₀ = L

I₁ ω₁,₀ + I₂ ω₂,₀ = I₁ ω₁ + I₂ ω₂

0 = mr² ω₁ + ½ Mr² ω₂

0 = 2m ω₁ + M ω₂

The beetle's angular velocity relative to the turntable is 0.03 rad/s, so ω₁ = ω₂ + 0.03.  Plugging in:

0 = 2 (30 g) (ω₂ + 0.03 rad/s) + (85 g) ω₂

0 = 60ω₂ + 1.8 rad/s + 85ω₂

145ω₂ = -1.8 rad/s

ω₂ = -0.0124 rad/s

ω₁ = ω₂ + 0.03

ω₁ = 0.0176 rad/s

Relative to a stationary observer, the beetle moves 0.0176 rad/s clockwise and the turntable moves -0.0124 rad/s counterclockwise.

(d) Angular distance = angular velocity × time

2π rad = (0.03 rad/s) t

t = 209 s

(e) Angular momentum is conserved.  Since both the beetle and the turntable were originally at rest, the turntable will again come to rest when the beetle stops.

(a) Angular momentum is conserved.

L₀ = L

I₀ ω₀ + I₂ ω₀ = I ω + I₂ ω

(I₀ + I₂) ω₀ = (I + I₂) ω

(M (R/2)² + ½ (3M) (R)²) ω₀ = (M (R)² + ½ (3M) (R)²) ω

(¼ MR² + ³/₂ MR²) ω₀ = (MR² + ³/₂ MR²) ω

(¼ + ³/₂) ω₀ = (1 + ³/₂) ω

(1 + 6) ω₀ = (4 + 6) ω

7ω₀ = 10ω

ω = 0.7ω₀

ω = 0.7 (3.40 rad/s)

ω = 2.38 rad/s

(b) Angular momentum is conserved.

L₀ = L

I₀ ω₀ + I₂ ω₀ = I ω

(I₀ + I₂) ω₀ = I ω

(M (R/2)² + ½ (3M) (R)²) (3.40 rad/s) = M (R)² ω

(¼ MR² + ³/₂ MR²) (3.40 rad/s) = MR² ω

(¼ + ³/₂) (3.40 rad/s) = ω

ω = 5.95 rad/s

Notice we could also have used our answer from part a and I₀ = MR².

(I₀ + I₂) ω₀ = I ω

(M (R)² + ½ (3M) (R)²) (2.38 rad/s) = M (R)² ω

(MR² + ³/₂ MR²) (2.38 rad/s) = MR² ω

(1 + ³/₂) (2.38 rad/s) = ω

ω = 5.95 rad/s