A spaceship has four thrusters for movement. Each thruster can fire exhaust gases away from the ship, causing it to move. Firing which pairs of thrusters together would cause the ship to remain stationary?

Thrusters 1 and 2

, Thrusters 1 and 2 , ,

Thrusters 1 and 3

, Thrusters 1 and 3 , ,

Thrusters 3 and 4

, Thrusters 3 and 4 , ,

Thrusters 2 and 3

, Thrusters 2 and 3 , ,

Thrusters 1 and 4

, Thrusters 1 and 4 , ,

Thrusters 2 and 4

The ball will continue according to the concept of Inertia and in a straight line according to Newton's first law of motion.

It states that, an object at rest or in a linear motion will continue to be at rest or in its linear motion except an external force act on it.

Given that a ball is attached to a string and spun in a circular path.

In a circular motion, the speed of the object is the same but the velocity is not because the object tend to move in a different straight line direction.

If the string snaps and the ball continues outward from that point in a straight line path, The Newtonian concept that explain this is the concept of Inertia that emanate from the First Newton's Law of Motion

Therefore, the correct answer is First Newton's Law of Motion

Learn more about Newton's Laws here: https://brainly.com/question/25545050

#SPJ1

In conclusion, the angular velocity of the disc, measured counterclockwise, when its mass center g has moved 0.5 m along the plane is given by the formula ω = 5/t, where t is the time taken to cover the distance of 0.5 m. The answer should be expressed using three significant figures.

To determine the angular velocity of a disc, we need to know its linear velocity and the radius of the disc. Since the disc's mass center has moved 0.5 m along the plane, we can use this information to find the linear velocity of the disc. Let's assume that the disc's radius is r.
The linear velocity of the disc can be calculated using the formula:
v = d/t
where d is the distance traveled by the mass center and t is the time taken to cover that distance. As the problem doesn't give any information about the time taken, we cannot directly find the linear velocity.
However, we can use the fact that the mass center of the disc is moving in a circular path to relate the linear velocity and angular velocity of the disc.
The angular velocity of the disc is given by the formula:
ω = v/r
where ω is the angular velocity, v is the linear velocity, and r is the radius of the disc.
Substituting the value of v from the first equation, we get:
ω = (d/t)/r
ω = d/(rt)
As we know that the mass center of the disc has moved 0.5 m, we can substitute d = 0.5 m. We don't know the value of t or r, but we can use the fact that the distance traveled by the mass center is equal to the length of the arc it traces on the circular path.
The length of the arc traced by the mass center is given by:
s = rθ
where s is the length of the arc, r is the radius of the disc, and θ is the angle in radians swept by the mass center.
We can use this equation to relate the distance traveled by the mass center with the angle swept by it. Let's assume that the angle swept by the mass center is α radians.
Then, we have:
s = rα
As the mass center of the disc has moved 0.5 m, we can equate s = 0.5 m:
0.5 = rα
α = 0.5/r
Substituting this value of α in the formula for angular velocity, we get:
ω = (0.5/t)/r
ω = 0.5/(rt)
As we need to express the answer using three significant figures, we can assume r = 0.1 m (as the problem doesn't provide any information about it). Substituting this value and simplifying, we get:
ω = 5/t

The answer is positive if the angular velocity is counterclockwise, and negative if the angular velocity is clockwise. We cannot determine the sign of the answer as the problem doesn't provide any information about the direction of motion of the mass center.

to know more about angular velocity visit:
https://brainly.com/question/30237820

#SPJ11

Answer:

A Ears

Explanation:

hgvjjghingyjbvh

1 C2H2 + 2H2= C2H6

H2+H2+H2=H6

you already have C2

Answer:

The rock has been layered.

Explanation:

Foliation is the repeated layering of rock. It usually happens when there's extensive heat or pressure in one direction.

Answer:

Option A. Decrease the charge of one Particles.

Option B. Increase the distance between the particles.

Explanation:

The electric force between two charged particles is related by the following equation:

F = Kq₁q₂ / r²

F is the force.

K is the electrical constant

q₁ and q₂ are the charges of the particles

r is the distance apart.

From the above formula, we can say that the force (F) is directly proportional to the product of the two charges and inversely proportional to their distance apart. This implies that as the charge of the particle increase, the force will also increase and as the charge of the particle disease, the force will also decrease.

On the other hand, if their distance apart is increased, the force will decrease and if their distance apart is decreased, the force will increase.

Note: if one of the charge disease, the force will also decrease and if one of charge increase, the force will also increase.

In order to determine the density of a cylinder, we need to know its mass and volume. The mass of the cylinder is given as 29.2 grams, but the volume is not provided. Without the volume, it is impossible to calculate the density of the cylinder.

As for whether or not the cylinder will float in water, that also depends on its density. If the density of the cylinder is less than the density of water (1), then it will float. However, without knowing the density of the cylinder, it is impossible to determine whether or not it will float in water.

Answer:

68.6 m/s^2

Explanation:

1 g = 9.8 m/s^2

so

7 g × 9.8m/s^2 = 68.6

The statement that the resultant of concurrent forces has no moment about the concurrent point is false. When multiple forces act on an object at a single point, their combined effect can generate a moment or torque about that point.

To understand this concept, we need to consider the definition of moment. Moment is the measure of the tendency of a force to rotate an object around a specific point or axis. It is calculated by multiplying the magnitude of the force by the perpendicular distance between the point of rotation and the line of action of the force.

In the case of concurrent forces, if the forces do not have equal magnitudes and act at different distances from the point of rotation, they will create a net moment about that point. The magnitude of the moment is determined by the vector sum of the moments created by each individual force.

Only when the forces are equal in magnitude and act along the same line passing through the point of rotation, their moments cancel each other out and the resultant force has zero moment. This special case is known as force balance or force equilibrium.

In general, however, when dealing with concurrent forces, it is incorrect to assume that the resultant has no moment about the concurrent point. The presence of a moment depends on the magnitudes, directions, and distances of the individual forces from the point of rotation.

To know more about concurrent forces refer here:

https://brainly.com/question/20165540#

#SPJ11

Answer:

I think its A

Explanation:

if its every 3 seconds wouldnt it be 3.0 Hz

The total density of the mixture is 0.485 g/cm^3

What is density:

The formula of density:

here,

volume of water, v1 = 30 cm^3

volume of ethanol, v2 = 40 cm^3

density of water, ρ1 = 1 g/cm^3

density of ethanol, ρ2 = 0.85 g/cm^3

so, according to formula,

for water

ρ1 = m1 / v1

m1 = ρ1 * v1

m1 = (1) * (30)

m1 = 30 grams

for ethanol

ρ2 = m2 / v2

m2 = ρ2 * v2

m2 = (0.85) * (40c)

m2 = 34 grams

total mass, M= m1 + m2

M= 30 + 34

M= 64 grams

total volume, V= v1 + v2

V= 30 + 40

V= 70 g/cm^3

Density of the mixture:

ρ = M / V

ρ = 34 / 70

ρ = 0.485 g/cm^3

Hence The total density of the mixture is 0.485 g/cm^3

Learn more about density of mixture here:

https://brainly.com/question/8313084

#SPJ4

The change in the period of the heated pendulum would be 0.0111 seconds.

The change in the period of a pendulum due to a change in temperature can be calculated using the formula:

ΔT = α * T0 * Δθ

Where:

To solve the problem, we need the coefficient of linear expansion of brass (α). Let's assume α = 19 x 10^(-6) (per degree Celsius).

T0 = 3.94 s (initial period of the pendulum)

Δθ = 149 °C (change in temperature)

ΔT = (19 x 10^(-6) * 3.94 s/°C) * (149 °C)

= 0.0110866 s

Therefore, the change in the period of the heated pendulum is approximately 0.0111 seconds.

More on change in period of pendulums can be found here: https://brainly.com/question/31328792

#SPJ1

Answer:

I'm gonna go with compund

Answer: a mixture because it is made out of some other substances.

Explanation:

The y-component of the vector is 4.97 m.

A vector is a quantity that has both magnitude and direction.

To calculate the y-component of the vector in the diagram above, we use the formula below.

Formula:

From the question,

Given:

Substitute these values into equation 1

Hence, the y-component of the vector is 4.97 m.

Learn more about vectors here:https://brainly.com/question/25705666

#SPJ1

Answer:

at night unplug EVERYTHING

explanation

when the power is off on a device it still may using a little electricity to recharge the battery inside or keep a clock running, etc. usually there are a lot of things plugged in a home so even if each thing is not using a lot of electricity, ALL the things that plugged in, put together, maybe using A LOT.

The critical radius of plastic insulation is calculated using the formula, rcr = (2 * C1 * P1) / (C2 * P2). By substituting the given values, rcr = (2 * 0.36 * 1070) / (0.045 * 1) = 6.384 inches. Therefore, the critical radius of the plastic insulation is 6.384 inches.

We can calculate the critical radius of plastic insulation using the following formula, rcr = (2 * C1 * P1) / (C2 * P2)Where C1 is the heat transfer coefficient for convection from the outer surface of the insulation, P1 is the density of conductor, C2 is the heat transfer coefficient for convection from the inner surface of the insulation, and P2 is the density of insulation.

The given values are,Inner radius of conductor, r1 = 0.5 inchesOuter radius of conductor, r2 = 0.75 inchesThermal conductivity of conductor, k1 = 200Btu/(hr.ft.F)Thermal conductivity of insulation, k2 = 0.045 Btu/(hr.ft.F)Temperature of inner surface of conductor, T1 = 100 FTemperature of outer surface of insulation, T2 = 80 F

Heat transfer coefficient for convection from outer surface of insulation, C1 = 0.36 Btu/(hr.ft2.F)Heat transfer coefficient for convection from inner surface of insulation, C2 = 0.05 Btu/(hr.ft2.F)Density of insulation, P2 = 1 lbm/ft3Density of conductor, P1 = 1070 lbm/ft3Now, substituting these values in the formula of rcr,rcr = (2 * C1 * P1) / (C2 * P2)rcr = (2 * 0.36 * 1070) / (0.045 * 1)rcr = 6.384 inchesTherefore, the critical radius of the plastic insulation is 6.384 inches.

To know more about plastic visit.

https://brainly.com/question/28420086

#SPJ11

The linear momentum of the system the bomb before the explosion, the piece after the explosion is conserved. Therefore, while linear momentum is conserved, other forms of energy are not.

The explosion, the bomb was at rest, so its momentum was zero. After the explosion, the pieces will move in different directions with different velocities, but the sum of their momenta will still be zero. This means that the total momentum of the system is conserved. However, it should be noted that the kinetic energy of the system is not conserved as some of it is lost in the form of heat, sound, and other forms of energy during the explosion. Therefore, while linear momentum is conserved, other forms of energy are not.

learn more about momentum here.

https://brainly.com/question/30677308

#SPJ11

Answer: 90 Km

Explanation:

15 Km/hr X 6/hr = 90Km

Force applied is directly proportional to displacement.

It is given by the formula

Here F is the force , k is the spring constant , x is the displacement.

Substituting the values,

Answer:

8046.72 meters pretty sure

Sunspots A and B, which are not on the equator, will take longer than 26.9 days to complete one revolution around the sun compared to sunspot C, which is on the equator.

Sunspots are dark spots observed on the surface of the Sun, and their movement is influenced by the rotation of the Sun. The Sun rotates differentially, meaning that different latitudes rotate at different speeds. The equator rotates faster than higher latitudes.

Since sunspots A and B are not on the equator, they will be located at higher latitudes. As a result, they will experience a slower rotational speed compared to the equator. Therefore, sunspots magnet A and B will take longer than 26.9 days to complete one revolution around the sun.

In contrast, sunspot C is located on the equator, where the rotational speed is faster. Therefore, sunspot C will complete one revolution around the sun in approximately 26.9 days, the same period as mentioned in the given information.

Learn more about magnet  here

https://brainly.com/question/30526692

#SPJ11

Answer: Crust and Uppermost Mantle

Explanation: The tectonic plate consist of crust and Uppermost Mantle; Lithosphere.

A- the potential between the cylinders is constant and equal to (2/4πε₀) ln(b/a). b- the electric field is constant and given by E(r) = -2/(4πε₀) [(1/a) - (1/b)] for a < r < b.

(a) To find the potential V(r) from r < b, we can use the formula for the potential due to a line charge:

V(r) = (λ/4πε₀) ln(r/r₀)

For r < a, the potential is simply V(r) = 0 since there is no charge. For a < r < b, the potential due to the inner cylinder is:

V₁(r) = (2/4πε₀) ln(r/a)

and the potential due to the outer cylinder is:

V₂(r) = (-2/4πε₀) ln(r/b)

Adding these two potentials, we get:

V(r) = V₁(r) + V₂(r) = (2/4πε₀) ln(r/a) - (2/4πε₀) ln(r/b) = (2/4πε₀) ln(b/a)

(b) To calculate the electric field at any point between the cylinders, we differentiate V(r) with respect to r:

E(r) = -dV/dr = -2/(4πε₀) [(1/a) - (1/b)]

learn more about electrical field here:

https://brainly.com/question/8971780

#SPJ4

the complete question is:

On the axis of a long, hollow metal tube with radius b, a long metal cylinder with radius an is supported on an insulating stand. The inner cylinder has a positive charge per unit length of 2 and the outer cylinder has an equal negative charge per unit length.

a- Calculate the potential V(r) from rb using V=0 at r=a.

(b) To calculate the electric field between the cylinders at any point, a r b, differentiate V(r) with respect to r.

To increase the capacitance of a parallel-plate capacitor, we would place the plates closer together. The capacitance of a parallel-plate capacitor is given by the formula:

C = ε0*A/d

where C is the capacitance, ε0 is the permittivity of free space, A is the area of the plates, and d is the distance between the plates. As we can see from the formula, the capacitance is directly proportional to the area of the plates and inversely proportional to the distance between them. Therefore, decreasing the distance between the plates will increase the capacitance, while increasing the distance between the plates will decrease the capacitance.

To learn more about capacitance refer to:

brainly.com/question/28445252

#SPJ4

Answer:

A line of symmetry is a line that separates a shape into two identical halves.
Rotational symmetry is the same thing except when you rotate the object, it has to have the exact same line of symmetry.

Hope this helps!!!

Two charged particles A and B are located near one another: Both the magnitude and direction of the force that particle exerts on particle B is independent of the magnitude and direction of the force are dependent on all of the above choices.

e) The magnitude and direction of the force are dependent on all of the above choices

a) The sign of charge B: The force between charged particles depends on the charges of both particles. The magnitude of the force is directly proportional to the product of the magnitudes of the charges. However, the direction of the force depends on the signs of the charges. Charges of the same sign (both positive or both negative) will repel each other, while charges of opposite sign will attract each other. Therefore, the direction of the force does depend on the sign of charge B.

b) The sign of charge A: The direction of the force depends on the signs of both charges. Therefore, the sign of charge A does affect the direction of the force.

c) The distance between A and B: According to Coulomb's law, the magnitude of the force between charged particles is inversely proportional to the square of the distance between them. Thus, the force depends on the distance between particles A and B.

d) The magnitude of the charge on B: The magnitude of the force between charged particles is directly proportional to the product of the magnitudes of the charges. Therefore, the magnitude of the charge on B does affect the magnitude of the force.

Since all of the above choices affect the magnitude and direction of the force, the correct answer is e) The magnitude and direction of the force are dependent on all of the above choices.

To know more about magnitude here

https://brainly.com/question/31022175

#SPJ4

The complete question is:

Two charged particles A and B are located near one another: Both the magnitude and direction of the force that particle exerts on particle B is independent of:________

a) the sign of charge B b) the sign of charge A c) the distance between A and B d) the magnitude of the charge on B e) The magnitude and direction of the force are dependent on all of the above choices.

Answer:

Scalars are quantities that are fully described by a magnitude (or numerical value) alone. Vectors are quantities that are fully described by both a magnitude and a direction.

Answer:

speed = distance / time

Explanation:

speed = 495 km /4.5 hours

=110 km /h

We don't know what its actual speed was at any moment during that time.

But its AVERAGE speed over the whole 495 km was (495 km)/(4.5 hr) = 110 km//hr.

By using the blackbody radiation formula, the temperature of the filament inside the bulb is changed by a factor of 10⁰'²⁵.

We need to know about black body radiation to solve this problem. The energy radiated by a black body object is proportional to the area and the fourth power of temperature. It can be determined as

P = A . e . σ . T⁴

where P is power, A is surface area, e is emissivity, σ is Stefan Boltzmann's constant ( 5.67 x 10¯⁸ W/m²K⁴) and T is temperature.

From the question above, we know that

P1 = 10 watt

P2 = 100 watt

T1 = T1

By using the black body radiation formula, the ratio of temperature is

T1⁴ / T2⁴ = P1 / P2

Hence,

T1⁴ / T2⁴ = P1 / P2

T1⁴ / T2⁴ = 10 / 100

T1⁴ / T2⁴ = 1 / 10

T2⁴ = 10T1⁴

T2 = ⁴√(10T1⁴)

T2 = T1 x 10⁰'²⁵

Thus, the temperature of the filament inside the bulb is changed by a factor of 10⁰'²⁵.

Find more on black body radiation at: https://brainly.com/question/18273651

#SPJ4

When a charged body is placed near the conductor, the opposite charge is appeared on the one side of the uncharged conductor body near the charged body under the effect of induction.

The opposite charge on the another body is also known as the induced charge.

The perpex rod in the given question is charged.

let the charge on the perpex is positive as shown in the figure.

Then, the polystrene sphers (insulator uncharged sphere) will not have any charge induced as the charges are not free to move inside the insulator.

Thus, when a charged perspex rod is placed close to a suspended polystyrene sphere then the induced charge on the sphere is not observed under the phenomenon of induction process and sphere remain uncharged.