Can someone answer these questions
I’ll give you brainliest

1. How do YOU think a rocket/space shuttle goes into outer space

2. Newton had 3 laws about motion. Please look up his 3rd one and write it down here.

3. How is this law related to how a rocket/space shuttle goes into outer space

4. What was the purpose of the SpaceX Crew Dragon mission

5. Who were the 2 astronauts involved

6. Where was the spaceX Dragon going

7. Were the takeoff and landing successful

8. How might this mission help future space travel

1. Heat transfer from a hot burner on the stove into a pot or pan

2. A metal spoon that gets hot from the boiling water

3. Chocolate candy in your hand that melts because of the heat

4. The wires in your house that conduct electricity

5. Roasting marshmallows, the heat will soften the marshmallow

Answer:

the engine heat from a car you just turned on.

a heater

a pad warmer

a hot pot

using a campfire to roast hot dogs

Answer:

B

Explanation:

Answer is B because the ball passes at 10 to 30

Answer:calcite

Explanation:

Based on these observations, Calcite is the identity of this mineral sample. Therefore, the correct option is option C among all the given options.

Typically created by inorganic processes, a mineral is a naturally occurring homogenous solid having a specific chemical composition as well as a highly organized atomic arrangement. About 100 of the known mineral species—the so-called rock-forming minerals—make up the majority of the known mineral species, which number in the thousands.

A mineral is different from its laboratory-produced synthetic counterparts since it must by definition develop through natural processes. Based on these observations, Calcite is the identity of this mineral sample.

Therefore, the correct option is option C among all the given options.

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Answer:

thermal energy

Explanation:

Answer:

Opposite charges attract each other, which means that a positive charge from a proton will attract negative charge from an electron.

Explanation:

Opposite charges attract because because their forced act in the same direction, which pulls them together. Protons are always positively charged subatomic particles and electrons are negatively charged subatomic particles. This attraction between the protons and electrons in atoms is what enables them to stay together and bond with other atoms.

Hope this helped!

Answer:

?

Explanation:

The angle formed between the shaft and the cable when the bob rotates at a constant 20 RPM is approximately 25.6 degrees.

To solve this problem, we need to use the equation for centripetal force:

F = m * (v^2 / r)

where F is the centripetal force, m is the mass of the pendulum bob, v is the velocity of the bob, and r is the radius of the circular path (in this case, the length of the cable).

We know that the bob is rotating at a constant 20 RPM (revolutions per minute). To find the velocity of the bob, we need to convert RPM to radians per second:

20 RPM * (2π radians / 1 revolution) * (1 minute / 60 seconds) = 2π/3 radians/second

Now we can plug in the values for m, v, and r:

F = 3 kg * ((2π/3 radians/second)^2 / 1 m)
F = 12.57 N

The centripetal force is equal to the tension in the cable. We can use this to find the angle between the shaft and the cable using trigonometry. Let's call this angle θ:

sin(θ) = F / mg
sin(θ) = 12.57 N / (3 kg * 9.81 m/s^2)
sin(θ) = 0.426
θ = sin^-1(0.426)
θ = 25.6 degrees

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A student walks 3 blocks south and 4 blocks west. The displacement of the student is 5 blocks SW.

Given that, the student walks 3 blocks south (AB) and then walks 4 blocks west (BC).

When we draw this on a paper, we find that we have drawn two sides of triangle. The displacement of the student would be the third side i.e, the hypotenuse of the triangle.

Applying Pythagoras theorem, we have

AB² + BC² = CA²

where, AB and BC are the two sides of the triangle

CA is the hypotenuse side of the triangle

From the above formula, CA = √(AB² + BC²)

Substituting in the formula, we have,

CA = √(3² + 4²) = √25 = 5

The hypotenuse side of the triangle is formed on the South-West side of the triangle.

Thus, the displacement is 5 blocks SW.

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Answer:

If the displacement of an object is proportional to the square of the time taken then the body is moving with uniformly accelerated motion as it will follow Newton's second equation of motion for a particular initial velocity, which can be given by, s=ut+21at2.

Answer:

5.6x10^4

Explanation:

use the equation V=kq/d

k is the constant 8.99x10^9

V=(8.99x10^9)q/d

q is the charge, 7.5 micro coulombs, but to get coulombs, multiply by 10^-6

V=(8.99x10^9)(7.5x10^-6)/d

And from the problem, we know that the distance is 1.2 meters

V=(8.99x10^9)(7.5x10^-6)/1.2

This simplifies to 5.6x10^4

The electric potential is 5.6 x 10⁴ v.

To find the electric potential the distance = 1.2 m

Charge q = 7.5 UC

               The amount of work needed to move a unit charge from the known point to some unknown point against the electric field  is said to be electric potential.

Formula of an electric potential is

                                     V = k ( q/r)  volt

                   V - electric potential

                    k - Coulomb constant (8.99x10^9)  

                    q -  charge

                     r- distance of separation

  V = (8.99x10⁹) (q/d)

  q = 7.5 UC ( micro coulomb) 10⁻⁶ C

   V=(8.99x10⁹)(7.5x10⁻⁶)/d

Substituting the values,

    V=(8.99x10⁹)(7.5x10⁻⁶)/1.2

    V = 5.6x10⁴ v

Thus, option A is correct.

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Unless a light ray comes into contact with a surface or enters a different material, it travels in a​ straight line.

When light enters a medium with a different speed or transitions from a fast to a slow medium, refraction occurs. According to Snell's law, if a light ray is incident ordinarily on the surfaces, then deviating from the normal will always lengthen the travel time.

Theoretically, sine (angle of incidence)*index of refraction of the incident media = sine (angle of refraction)*index of refraction of the refractive medium

Sine (0)=0 because the angle of incidence is 0 degrees.

As a result, the light ray will travel straight.

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Answer: 3.60 grams are needed to make 220 ML of 0.040 m solution

Explanation:

The acceleration at x is 2 m/s²

Acceleration (a) is the rate of change of velocity (v) with respect to time (t).

The formula to calculate acceleration is:

a = (v - u) / t

Where u is the initial velocity (assuming u = 0 m/s in this case, since it's not given).

Substituting the given values, we get:

a = (v - u) / t

a = (30 m/s - 0 m/s) / 15 s

a = 2 m/s²

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Answer: The end point of a spring oscillates with a period of 2.0 s when a block with mass m is attached to it. When this mass is increased by 2.0 kg, the period is found to be 3.0 s.  Then the mass m is 0.625kg.

Explanation: To find the answer, we need to know more about the simple harmonic motion.

                                          \(T=2\pi \sqrt{\frac{m}{k} }\)

               \(T_1=2s\\m_1=m\\m_2=m+2kg\\T_2=3s\)

              \(T_1=2\pi \sqrt{\frac{m}{k} } \\T_2=2\pi \sqrt{\frac{m+2}{k} } \\\frac{T_1}{T_2} =\sqrt{\frac{m}{m+2} }\\\frac{2}{3} =\sqrt{\frac{m}{m+2} }\\\\\)

               \(m=\frac{5}{8} =0.625kg\)

Thus, we can conclude that, the mass m will be 0.625kg.

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The formula for calculating the orbital speed of the eqrth as it orbits the sun is expressed as

Where

G is the gravitational constant whose value is 6.673 x 10^- 11 Nm^2/kg^2

M is the mass of the central body about which the satelite orbits

R is the ardius of orbit of the satelite

From the information given,

M = 1.99 x 10^30 kg

R = 1.496 x 10^11

By substituting these values into the formula, we have

The orbital speed of the Earth, in m/s, as it orbits the Sun is 29793.48 m/s

The parameter that is consistent with the indicated change in momentum is:

First we can use the principle of conservation of momentum to determine which of the following parameters are consistent with the indicated change in momentum:

p = m * v

Where

If the momentum of the object increases from 5 kg·m/s to 25 kg·m/s in the same direction, then we can conclude that:

Therefore, the parameter that is consistent with the indicated change in momentum is:

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Answer:

Velocity = 0.5 m/s South (A)

Explanation:

You need to determine the average rate of velocity.  

The equation you will use is velocity = displacement/time

The displacement is 30m South.

The time is 60 seconds.

Plug into the equation  Velocity = 30m South/60 s

Velocity = 0.5 m/s South

Answer: A)

Explanation:

The magnitude of the compression forces acting on both sides of the center board to keep it from slipping is 80.94 N

f = μ N

f = Frictional force

μ = Coefficient of friction

N = Normal force

μ = 0.522

W = 84.5 N

The normal forces are the compression forces acting on both sides of the center board that keeps it from slipping

To keep the center board from slipping,

∑Fy = 0

f + f - W = 0

2 f - W = 0

2 μ N - W = 0

( 2 * 0.522 * N ) = 84.5

1.044 N = 84.5

N = 80.94 N

Therefore, the magnitude of the compression forces acting on both sides of the center board to keep it from slipping is 80.94 N

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The net force is F   = k × q0 × q3 / 2×\(d_{2} ^{2}\) × (1√2 ^j + 1√2 ^k)N

Coulomb's law states that the electrostatic force of attraction between two charges separated by a distance r, q 1 and q 2, is given by:

F = k (q1q2/r2)

Coulomb's constant k = 9×\(10^{9}\) Nm2/Kg2

Location of charge q3: P (0,d2,d2)

By Coulomb's law, the force on charge q0 due to q3 is:

F = k × q0 × q3 / \(d_{2} ^{2}\) × \(d_{2} ^{2}\) × (1√2 ^j + 1√2 ^ k)

F   = k × q0 × q3 / 2×\(d_{2} ^{2}\) × (1√2 ^j + 1√2 ^k)N

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The magnitude of the momentum of the combined object after the collision is 5mv. So the correct option is A) 5mv.

To solve this problem, we can use the principle of conservation of momentum. The total momentum before the collision should be equal to the total momentum after the collision, assuming no external forces are acting on the system.

Let's break down the velocities into their respective components:

Object 1:

Mass (m)

Velocity toward the east: 3v

Velocity components: 3v toward the east and 0v toward the north (since it's only moving horizontally)

Object 2:

Mass (2m)

Velocity toward the north: 2v

Velocity components: 0v toward the east (since it's only moving vertically) and 2v toward the north

To find the momentum of the combined object after the collision, we need to add the momentum vectors of the two objects.

Momentum of object 1 before the collision:

p1 = m * (3v) = 3mv toward the east

Momentum of object 2 before the collision:

p2 = (2m) * (2v) = 4mv toward the north

Now, let's add the momentum vectors:

p_total = p1 + p2

= 3mv (east) + 4mv (north)

Since these vectors are at right angles, we can use the Pythagorean theorem to find the magnitude of the total momentum:

Magnitude of total momentum:

|p_total| = \(\sqrt{3mv)^2 + (4mv)^2)}\)

= \(\sqrt{9m^2v^2 + 16m^2v^2}\)

= \(\sqrt{25m^2v^2}\)

= 5mv

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The force diagram of the given situation is shown below:

As you can notice, force due to the friction of the box with the flat surface is opposite to the applied force.

Answer:

When an object applies a force on another object, the second object applies a force of the SAME amount/magnitude on the first object, but the force is in the opposite direction.

Charge q1=1.00 nC is at x1 = 0 and charge q2 = 3.00 nC is at x2 = 2.00 m. At a point 1.00 m away from charge q1, the electric field will be equal to zero.

This can be determined by calculating the electric field at this point, which is given by:E = (1/4πεo) x (q1/x2 - q2/x2), where εo is the electric permittivity of free space and x is the distance from charge q1.
At x = 1.00 m, E = 0.

An electric field is defined as the physical field that surrounds electrically charged particles and exerts force on all other charged particles in the field, which is either attracting or repelling them. It is also refers as the physical field for a system of charged particles.

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East or west: it remains the same.

North: it increases.

South: it decreases.

At the North pole: it's straight up over your head.

At the equator: it's on the horizon, north of you.

South of the equator: it's below the horizon and you can't see it at all.

Answer:

146 neutrons.

Explanation:

plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz mark me brainliest

Answer: The atomic number of uranium (see periodic table) is 92, and the mass number of the isotope is given as 238. Therefore, it has 92 protons, 92 electrons, and 238 — 92 : 146 neutrons.

Explanation:

Given,

The initial frequency of the heartbeat, f₁=1.45 Hz

The increased heartbeat, f₂=1.55 Hz

The frequency of the heartbeat can be described as the number of occurence of the heartbeat per second. That is every second, the heart beats 1.45 times.

(a)

Thus for a minute, the number of the heartbeats is,

Thus 87 beats occur for a minute.

(b)The increase in the frequency of the heartbeat implies the increase in the number of the heartbeat for every second. And hence the beats in a minute increase when the frequency of the heartbeat increases.

(c)

The number of the beats per minute after the increase of the frequency is,

Thus after the increase in the frequency, 93 beats occur in a minute.

Answer:

D: The ability to do work or cause change.

Explanation:

Energy can be defined as the ability to do work. We apply energy in basically everything we do in life, energy is needed to walk or move from one position to another, it is required to eat and do other basic things of life. The body system converts the food that is being consumed into energy, this energy can be switched from one form to another.

There are various forms of energy which include solar energy, wind energy, electrical energy, mechanical energy, kinetic energy, potential energy, etc. This form of energy can be converted from one form to another but cannot be destroyed.

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Answer:

Average acceleration = Displacement / (time)^2

Explanation:

The unit for acceleration is

\(m {s}^{ - 2} \)

Displacement = m

Time = s

Hence the units of displacement and time should be manipulated to get the unit of acceleration.

You can't. You can only find average velocity.

But if you also know that initial velocity is zero ... the object started from rest ... then

Avg acceleration =

2 x displacement / time-squared

Answer:

F=mass×acceleration

Acceleration=force÷mass

6.2/2=3.1

The resulting acceleration is 3.1 m/s2

Answer:

Explanation:

We know the relation :

We can rearrange so it is equal to acceleration :

Here :

Substituting the values in our rearranged equation :

Therefore, the resulting acceleration of the object will be 3.1 m/s²