the force per meter between the two wires of a jumper cable being utilized to start a stalled van is 0.215 n/m.

Answer:

BOOM

Explanation:

Astronauts perform many tasks as they orbit Earth. The space station is designed to be a permanent orbiting research facility. Its major purpose is to perform world-class science and research that only a microgravity environment can provide. The station crew spends their day working on science experiments that require their input, as well as monitoring those that are controlled from the ground. They also take part in medical experiments to determine how well their bodies are adjusting to living in microgravity for long periods of time.

Working on the space station also means ensuring the maintenance and health of the orbiting platform. Crew members are constantly checking support systems and cleaning filters, updating computer equipment: doing many of the things homeowners must do to ensure their largest investment stays in good shape. Similarly, the Mission Control Center constantly monitors the space station and sends messages each day through voice or email with new instructions or plans to assist the crew members in their daily routines.

Answer:

I'll be utilizing this section from the end to help me with Newton's law: "The acceleration of an item depends on the mass of the object and the amount of force applied." I believe that duties like as resting, fixing objects outside and within the ship, and just enabling them to stay grounded would benefit greatly from modifications. I believe that extremely powerful suction would be required to keep the astronauts grounded. For ease of access, the portions would be placed on both the feet and the hand.

Explanation:

Answer:

Explanation:

The other answer is correct: the act of hitting a ball with a bat creates a sound. You see the act of hitting almost immediately because light travels very fast. The sound on the other hand travels much slower. So if you sit high in the stadium, the sound has to travel for a long distance before reaching you. That is why you hear the sound after you see the ball being hit.

The ratio of angular velocity of the ball at end of the plane to its angular velocity (passing the center point C of the inclined plane) will be equivalent to "sqrt (5/2)."

The principle of conservation of energy can be applied here to determine the required ratio. As the ball rolls down the inclined plane, the potential energy it possessed at the top is transformed into kinetic energy as well as rotational energy.

Now, let's assume the ball has a mass 'm', a radius 'r', and an inertial moment of '\(I = (2/5)mr^{2}\)' (for a solid sphere). Let 'h' represent the height of the inclined plane's top and 'θ' represent the angle that the plane makes with the horizontal.

By applying the principle of conservation of energy, we get:

\(mgh = (1/2)I\omega^2 + (1/2)mv^2\)

where, \(mgh\) = potential energy of the ball at the top of the plane ('g' denoting acceleration due to gravity), \((1/2)I\omega^2\) = rotational kinetic energy ('ω' being the angular velocity), and \((1/2)mv^2\) denoting the translational kinetic energy ('v' is the linear velocity) of the ball.

On simplifying the equation, we get:

\(\omega f/\omega c = \sqrt{5r/h}\)

where \(\omega f\)= angular velocity of the ball at end of the plane, and \(\omega c\)  = angular velocity of the ball as it passes the center point C of the plane.

"sqrt (5/2)" is the correct option since it matches the expression obtained earlier, i.e., \(\omega f/\omega c = \sqrt{5r/h}\).

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So, to observe the red traffic light as yellow, the observer must approach the light with a speed of 0.148 times the speed of light.

When the observer approaches the red traffic light with a speed, the light appears shifted towards the blue end of the spectrum. The apparent frequency and wavelength shift is calculated using the Doppler effect equation.

The Doppler shift is given by the relation f′= f (v+vO)/c

where, f' is the observed frequency, f is the frequency of the wave, v is the speed of the observer, v O is the speed of the source and c is the speed of the wave.

For the red traffic light,

f= c/λ = 4.44 × 10^14 Hzλ

= 675 nm

For the yellow traffic light,

f = c/λ

= 5.22 × 10^14 Hzλ

= 575 nm

As we know that the light appears yellow when the red light shifts 575 nm.

Therefore, the observer should be approaching the light with a speed given by the relation as,

∆f/f = v/c⇒ ∆λ/λ

= v/c⇒ v

= c (∆λ/λ)

= c [(λ_0 - λ)/λ_0 ]

Where,λ is the wavelength of the shifted light (λ = 575 nm),λ0 is the wavelength of the unshifted light (λ0 = 675 nm)

Therefore,

v = c [(675 - 575)/675]⇒ v

= 0.148c

So, the observer must approach the red traffic light at a speed of 0.148 times the speed of light to observe it as yellow.

An observer, when approaching a red traffic light, experiences a shift in the light's wavelength towards the blue end of the spectrum. This apparent frequency and wavelength shift is given by the Doppler effect equation.

The Doppler shift can be expressed using the relation,

f′= f (v+vO)/c

where, f' is the observed frequency, f is the frequency of the wave, v is the speed of the observer,v O is the speed of the source and c is the speed of the wave.

The frequency and wavelength of the red and yellow traffic lights are,

f= c/λ

= 4.44 × 10^14 Hz,

λ = 675 nm and

f = c/λ

= 5.22 × 10^14 Hz,

λ = 575 nm.

Since we know that the light appears yellow when the red light shifts by 575 nm, the observer must be approaching the light with a velocity given by the following relation:

∆f/f = v/c⇒ ∆λ/λ

= v/c⇒ v

= c (∆λ/λ_0 ) where λ_0 is the wavelength of the unshifted light (λ_0 = 675 nm)

Therefore,

v = c [(675 - 575)/675]⇒ v

= 0.148c

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Answer:

The object would continue to move upwards at the same angle.

Explanation:

Gravity is (generally) the only force acting on an object. To take this away, you would have no forces acting on the object.

According to Newton's 1st Law, it would therefore continue moving indefinitely.

I hope this helps!

Answer:

A thumb only has one joint and two phalanges. The thumb is referred to as “the big finger".

Brainlist pls!

Answer:

"H" is a chemical symbol and "H2" is chemical formula.

Answer:

f=ma

f=280N

m=40kg

a=?

280=40a

a=280/40

a=70N/kg

Answer:

W= 20000j

Explanation:

W= fd = 1000N(20m) = 20000j

when you get the answer please tell me

The outcomes based on whether thermal energy is added or being removed are:

Thermal energy added :

Thermal energy being removed :

When thermal energy is added to a substance, the particles absorb this energy and start moving faster, which means their kinetic energy increases. This leads to an increase in temperature because the faster-moving particles collide with each other more frequently, transferring this extra energy in the form of heat.

Therefore, an increase in temperature and an increase in the kinetic energy of particles result from thermal energy being added, while a decrease in temperature and a decrease in the kinetic energy of particles result from thermal energy being removed.

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The displacement of the pendulum is 0.815 m.

Mass of the pendulum, m = 25 kg

Length of the pendulum, l = 0.75 m

Distance moved by the pendulum, x = 0.25 m

Therefore, acceleration of the pendulum,

a = -(g/l) x   the negative sign implies the restoring force.

a = -(9.8/0.75) 0.25

a = -3.26 m/s²

Time period of the pendulum = 2 s

Angular frequency, ω = 2\(\pi\)/T

ω = 2 x 3.14/2

ω = 2 s⁻¹

Displacement,

x' = -(a/ω²)

x' = 3.26/4

x' = 0.815 m

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Answer:

See below

Explanation:

x component =  90 cos 45 = 63.6 N

y component =  90 sin 45  = 63.6 N

One of the benefits of keeping your supplies stocked and your electronics in a perfect working condition is that:

It makes sure your work does not take too long

In a normal system and environment, the importance of keeping goods or supplies well cannot be overemphasized. In such a system, when customers comes to get goods, it makes it easier for them to release as it won't take much time presenting it.

That being said, our electronics too, when they are in a perfect order of arrangements, puts them in good condition.

In conclusion, when we keep supplies stocked, it helps to saves time.

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Yes, an object can have zero displacement even if it has moved through a distance.

Displacement is a vector quantity that represents the change in position from the initial point to the final point.Yes, an object can have zero displacement even if it has moved through a distance. It takes into account the direction of motion as well as the magnitude.To illustrate this, consider a scenario where an object moves in a circular path and returns to its initial position. In this case, the object has covered a certain distance along the circumference of the circle. However, since it ends up at the same position it started, the displacement is zero because there is no change in its position relative to the initial point.

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To calculate the magnitude of the force that would exactly counterbalance these three forces, we need to use the principle of vector addition. This involves combining the three forces vectorially to find the net force acting on the object.

First, we need to find the resultant of the two forces that are at an angle of 90 degrees to each other. This can be done using the Pythagorean theorem:

Resultant = √(25² + 12²) = √(625 + 144) = √769 = 27.74 N

Next, we need to find the net force acting on the object by adding the third force (4 N) to the resultant of the first two forces (27.74 N).

Net force = 4 N + 27.74 N = 31.74 N

Therefore, the magnitude of the force that would exactly counterbalance these three forces is 31.74 N.

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It's gonna take a huge amount of time and effort, and we're gonna spend a huge amount of money, to build a vacuum chamber big enough to do this experiment.  

So when we're finally ready to try it, the cannonball and golf ball will make a  kind of cute experiment, but let's make it really interesting.  Let's ALSO try it with a feather, an apple, a watermelon, a tennis ball, a basketball, a coffeepot, a chair, an old computer, a set of dishes, a trombone, a bicycle, a math book, a TV set, a gallon of milk, a skateboard, a shotgun, a concrete block, a car, a waterbed, a schoolbus, a battleship, your dog, and my wife !

Drop every single one of them from a height of 10 meters.

Every single one of them accelerates at 9.8 m/s² as it falls, takes 1.429 seconds to reach the floor, and hits the floor at a speed of 14 m/s.  The feather, the schoolbus, and my wife stay together all the way down.

The only way this doesn't happen is if ...

-- you do this experiment in some other place that's not Earth, or

-- you throw one of the objects and you don't just drop it, or

-- the vacuum chamber has a leak and some air gets into it.

Because that's how gravity works.

Answer:

20m/s

Explanation:

Given parameters:

Distance of throw = 50m

Time  = 3s

Unknown:

Average speed  = ?

Solution:

Average speed is distance divided by time;

  Average speed  = \(\frac{distance }{time}\)

Insert the parameters and solve;

  Average speed  = \(\frac{50}{3}\)   = 16.66667m/s  = 20m/s

The runner's total distance covered was 800 meters.  Her displacement (straight-line distance between start-point and end-point) was zero.

Her average speed = (distance)/(time) = 4.04 m/s

Her average velocity = (displacement) / (time) = zero (choice - c)

Answer:

10.3 cm³

Explanation:

From the question given above, the following data were obtained:

Original volume (V₁) = 10 cm³

Initial temperature (θ₁) = 20 °C

Final temperature (θ₂) = 50 °C

Cubic expansivity (γ) = 10¯³ K¯¹

Final volume (V₂) =?

γ = V₂ – V₁ / V₁(θ₂ – θ₁)

10¯³ = V₂ – 10 / 10( 50 – 20)

10¯³ = V₂ – 10 / 10(30)

10¯³ = V₂ – 10 / 300

Cross multiply

10¯³ × 300 = V₂ – 10

0.3 = V₂ – 10

Collect like terms

0.3 + 10 = V₂

10.3 = V₂

V₂ = 10.3 cm³

Thus, the volume at 50 °C is 10.3 cm³

Answer:

I cant read it sorry.

Explanation:

Answer:

The pencil will appear wider and bent

Explanation:

no explanation

Answer:

the answer is D

Explanation:

To test the flow of electric current through a circuit we can use a lightbulb. If a current is generated the bulb will light with brightness. Thus, option D is correct.

An ammeter is an electric device used to measure the current through a circuit. The current in ampere, milliampere or microampere is recorded by the ammeter through the deflection of its needle.

A magnetic field is always associated with an electric field where, the fields will be right angled to each other. A moving magnet in turn causes an electric current like a moving charge make an electric current.

To light a bulb electrical energy is needed. Thus, we can  test the deflection in electric field using a a light bulb connected to the circuit. If there is a fine passage of electricity, the bulb will lighten. Thus, option D is correct.

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The x-component of the acceleration for the halfback is 14.25 m/s², and for the opponent is -9.5 m/s².The kinetic energy converted to incoherent energy during the collision is 4560.6 Joules.

To solve this problem, we need to apply the principles of conservation of momentum and kinetic energy.

Given:

Mass of the halfback (m1) = 80 kg

Mass of the opponent (m2) = 120 kg

Initial velocity of the halfback (v1i) = -10 m/s (since it's directed west)

Initial velocity of the opponent (v2i) = 4.37 m/s (assume it's directed west as well)

Collision time (Δt) = 0.237 s

First, let's calculate the initial momentum of each player:

Momentum of the halfback (p1i) = m1 * v1i = 80 kg * (-10 m/s) = -800 kg·m/s

Momentum of the opponent (p2i) = m2 * v2i = 120 kg * (-4.37 m/s) = -524.4 kg·m/s

Since the collision is totally inelastic, the final velocity of both players will be the same. Let's denote this final velocity as vf.

Using the principle of conservation of momentum, we have:

Initial momentum = Final momentum

(p1i + p2i) = (m1 + m2) * vf

Substituting the given values:

(-800 kg·m/s + (-524.4 kg·m/s)) = (80 kg + 120 kg) * vf

-1324.4 kg·m/s = 200 kg * vf

vf = -1324.4 kg·m/s / 200 kg

vf = -6.622 m/s

Now, let's calculate the x-component of the accelerations for each player.

The x-component of acceleration can be calculated using the equation:

acceleration = (change in velocity) / (time)

Since we're only interested in the x-component, we'll calculate the change in x-velocity and divide it by the collision time.

For the halfback:

Δv1x = vf - v1i = -6.622 m/s - (-10 m/s) = 3.378 m/s (final - initial velocity)

acceleration1x = Δv1x / Δt = 3.378 m/s / 0.237 s = 14.25 m/s²

For the opponent:

Δv2x = vf - v2i = -6.622 m/s - (-4.37 m/s) = -2.252 m/s (final - initial velocity)

acceleration2x = Δv2x / Δt = -2.252 m/s / 0.237 s = -9.5 m/s²

Now, let's calculate the kinetic energy converted to incoherent energy during the collision.

The initial kinetic energy before the collision is given by:

Initial KE = (1/2) * m1 * (v1i)^2 + (1/2) * m2 * (v2i)^2

Substituting the given values:

Initial KE = (1/2) * 80 kg * (-10 m/s)^2 + (1/2) * 120 kg * (-4.37 m/s)^2

Initial KE = 4000 J + 960.6 J

Initial KE = 4960.6 J

The final kinetic energy after the collision is given by:

Final KE = (1/2) * (m1 + m2) * vf^2

Substituting the given values:

Final KE = (1/2) * (80 kg + 120 kg) * (-6.622 m/s)^2

Final KE = 400 J

The kinetic

energy converted to incoherent energy during the collision is the difference between the initial and final kinetic energies:

KE converted to incoherent energy = Initial KE - Final KE

KE converted to incoherent energy = 4960.6 J - 400 J

KE converted to incoherent energy = 4560.6 J

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Answer:

Efficiency can be increase by using rollers in conjunction with the inclined plane. Wedge. The wedge is an adaptation of the inclined plane. It can be used to raise a heavy load over a short distance or to split a log.

Explanation:

Hope it helps

Answer: 1 m/s

Explanation: 1 km = 1000 m (1 kilometer is equal to 1000 meters)

1 hour = 3600 seconds (1 hour is equal to 3600 seconds)

Answer:

idek to be honest

Explanation: