true or false: for a star moving away from you, you would observe the light to be shifted toward the blue end of the spectrum.

Answer:

The sign of charge q is negative.

Explanation:

This is because electric field lines usually emanate from positive charges and terminate at negative charges. The negative charge in the hollow cavity induces a positive charge on the inner shell wall of the hollow shell which in turn induces the negative charge q on the hollow spherical shell.

Since the induced electric charge on the inner wall is positive, the electric field lines from that charge terminates at the inner charge q. Since electric field lines terminate only at negative charges, q is negative.

An object's mass rather than its weight is used to indicate the amount of matter it contains because weight is defined as the amount of force experienced by a body. The weight of a body can be different as it depends on where and under what conditions it is kept.

However mass is the measure of the amount of matter contained in a body and it is always constant.

Weight is defined as the amount of force exerted on a body by a moving gravitational field or any other field at the surface of the earth. It is measured in Newton (N)

Learn more about weight here

brainly.com/question/23312072

#SPJ4

The force that keeps the car on its circular path as it exits the ramp is centripetal force.

Centripetal force is the force that acts on an object moving in a circular path, directed towards the center of the circle. In the case of the car, the centripetal force is provided by the frictional force between the tires and the road surface. This frictional force acts towards the center of the circular path, allowing the car to maintain its speed and direction as it moves around the exit ramp.

Without this centripetal force, the car would continue moving in a straight line and would not be able to follow the circular path of the exit ramp.

You can learn more about centripetal force at

https://brainly.com/question/20905151

#SPJ11

The velocity of the boat when it reaches distance d is mv₀²/(m + 2kd)

Drag force of water is a resistive force that act opposite to the flow off water.

Here,

The initial velocity of the boat having mass m is v₀.

The force exerted by the water on the boat is proportional to square of its velocity.

   F ∝ v²

   F = -kv²   where k is the proportionality constant and the - sign        indicates the force is opposing the flow.    

ma = -kv²

therefore, a = -kv²/m

where v is the velocity of the boat and a is the acceleration.

Considering the equation of motion,

v² = u² + 2as

Applying the values of u, a and s

v² = v₀² - 2 (kv²/m)d

v² + 2(kv²/m)d = v₀²

v² (1 + 2kd/m) = v₀²

v² (m + 2kd)/m = v₀²

Therefore, v² = mv₀²/(m + 2kd)

                  v = √mv₀²/(m + 2kd)

Hence, the velocity of the boat at distance d, v = √mv₀²/(m-2kd).

To learn more about drag force, click:

https://brainly.com/question/28828388

#SPJ1

Given data

*The initial quantity of potassium-42 is 1500 mg

*The given time is t = 48 hours

*The half-life of Potassium - 42 is T = 12.4 hours

The expression for the radioactive decay is given as

Substitute the values in the above expression as

A high jumper reaching the peak of their jump and A ball being tossed directly upward before reaching its highest point represents kinetic energy transforming into potential energy.

Kinetic energy (K.E.) can be described as the energy contained by a moving object due to its motion. The change in the kinetic energy of a moving body is equal to the work done.

The kinetic energy (K.E.)  of a moving object can be written as:

K.E = ½mv²  where ‘m’ is the mass, ‘v’ is the velocity of the object.

Potential Energy (P.E) can be defined as the energy that is stored by an object due to its position and is equal to P.E = mgh where ‘m’ is the mass, ‘g’ is the gravitational acceleration and ‘h’ is the height (in m).

The kinetic energy of the ball and the jumper is maximum at the ground and their kinetic energy changes into potential energy as they are moving toward the highest point.

Learn more about kinetic energy and potential energy, here:

brainly.com/question/15764612

#SPJ1

The magnitude of the Coulomb force between a charge of +3e and a charge of +2e separated by a distance of 0.005m can be determined by Coulomb's law.

Coulomb's law is a fundamental principle of electrostatics that explains how electrically charged particles interact. It describes the magnitude of the force between two electrically charged particles. The law states that the magnitude of the force between two point charges is proportional to the product of their charges and inversely proportional to the square of the distance between them. The formula is given by;

F = k(q1q2/r²) where F is the force, k is Coulomb's constant, q1 and q2 are the charges of the particles, and r is the distance between them.

Substituting the given values, we get;

F = 9 × 109 Nm²/C²(3e)(2e)/0.005² = (9 × 109 Nm²/C²) × (3 × 2) × (1.6 × 10⁻¹⁹ C)² / (0.005 m)²≈ 1.036 × 10⁻¹² N

To learn more about distance click here https://brainly.com/question/29552792

#SPJ11

For the right block to balance the forces and remain steady, it needs to weigh 7.9 kg.

The force is an external agent which is applied to the body or an object to move it or displace it from one position to another position.

When there is no net force acting on the system, the two blocks stay in place. In this instance, the strain in the rope holding the two blocks together balances the pull of gravity on them. The sine of the angles, along with the masses of the blocks, can be used to calculate the tension in the rope.

\(T= (m_1 \times g) \times sin(\theta_1) + (m_2\times g) \times sin(\theta_2)\)

Substituting the known values:

\(T = (10 \times 9.8 )\times sin(23^o) + (m_2\times 9.8 )\times sin(40^o)\)

Solving for m₂:

\(m_2= \dfrac{(T- (10 \times 9.8 )\times sin(23^o)} { (9.8\times sin(40^o))}\)

The mass of the right block must be 7.9 kg for the two blocks to remain stationary.

To learn more about the force at,

brainly.com/question/13191643

#SPJ4

The question is -

Two blocks in the Figure below are at rest on frictionless surfaces What must be the mass of the right block so that the two blocks remain stationary? 4.9kg 6.1kg 7.9kg 9.8kg

Answer:

this is ur answer

as we know that velocity= displacement/change in time

hence velocity here is= 11-3/12-0

=8/12

=2/3

=0.667m/s

hopefully i am right

Answer:

The person should exercise 150 minutes

Explanation:

Recall that the Lorentz factor must be applied to the relationship between the elapsed time (T) of the clock at rest (time measured on Earth), and the elapsed time (T') measured by the clock in the frame moving at 0.8 c. The equation becomes:

\(T'=\frac{T}{\sqrt{1-(\frac{0.8\,c}{c})^2 } } \\T'=\frac{90\,min}{\sqrt{1-0.8^2} } \\T'=150\,\,min\)

Answer: 0.0208 Centuries

Explanation:

There is 2.739*10^-5 centuries per 1 day.

We can take 746 days and multiply it by that 2.7 number to get how many centuries are in 746 days.

\(746 *(2.793*10^{-5})\) = 0.0208 centuries

The increase in potential energy of a 60.0-kg man who climbs a ladder 10.0 meters high is 5,880 J.

The increase in the potential energy of the man is calculated as follows;

P.E = mgh

where;

P.E = 60 x 9.8 x 10

P.E = 5,880 J

Thus, the increase in potential energy of a 60.0-kg man who climbs a ladder 10.0 meters high is 5,880 J.

Learn more about potential energy here: https://brainly.com/question/1242059

#SPJ1

I'm thinking it's a parabola since you can cover a vast amount of apace within the parabola too.

What is satellite ?

An object that has been placed into orbit in space on purpose is known as a satellite or artificial satellite. Except for passive spacecraft, most satellites feature a power generation system for equipment on board, such as solar panels or radioisotope thermoelectric generators (RTGs) (RTGs). Most satellites also include a mechanism of communicating to ground stations, called transponders. The most common satellites, small CubeSats, use a standardized bus to reduce costs and labor. Satellites of a similar type can cooperate with one another to form constellations. Satellites are made to be as light and durable as possible due to the high cost of space launch. Satellites are launched into orbit from the surface by vehicles that are high enough to prevent orbital decay caused by the atmosphere.

Learn more about satellite visit this link:

https://brainly.com/question/11804150

#SPJ4

Infrared radiation has longer wavelengths compared to visible radiation, and lower energy per photon.

Infrared radiation (IR) is a type of electromagnetic radiation that is not visible to the human eye. It has a longer wavelength and lower frequency than visible light, and it is part of the electromagnetic spectrum that also includes radio waves, microwaves, visible light, ultraviolet radiation, X-rays, and gamma rays.

Infrared radiation is often associated with thermal radiation, which is the emission of electromagnetic waves from objects that are at a temperature above absolute zero. This is because infrared radiation is often emitted by objects that are warm, and it is this type of infrared radiation that is responsible for our ability to feel heat.

Infrared radiation has a wide range of applications, including in remote sensing, thermal imaging, and heating. For example, in remote sensing, infrared radiation can be used to observe and study the Earth and other celestial objects, as well as to detect and monitor changes in temperature, vegetation, and other physical properties. In thermal imaging, infrared cameras are used to detect heat signatures and create images based on temperature differences. In heating, infrared heaters use infrared radiation to heat objects and materials directly, rather than heating the air around them.

To know more about,electromagnetic  visit:

https://brainly.com/question/17057080

#SPJ 4

Answer:

Explanation:

Lori's family is on a road trip. They split

their drive into the five legs listed in the

table. Find the average velocity for each

leg of the trip. Then arrange the legs of

the trip from lowest velocity to highest so

that's why lori family e, b, a, C, d, hsas the

full explanation acc to the question

Answer:

hhuuufuhrhuuuryheu7uhhehfu

Answer:

A.add the forces

Explanation:

since they're both going in the same direction then they should be added to get the total net force.

pls mark me brainliest

The net force acting on the airplane if, An airplane is flying at 80 kilometers per hour when a strong tailwind, traveling in the same direction at 5 kilometers per hour is 85 km/hr so, option A is correct.

Force is the influence of either pull or pushes in the body. Basically, gravitation forces, nuclear forces, and friction forces are the types of forces.

For e.g. when the wall is hit by a hand then a force is exerted by the hand on the wall as well as the wall also exerts a force on the hand. There are different laws given to Newton to understand force.

Given:

An airplane is flying at 80 kilometers per hour when a strong tailwind, traveling in the same direction at 5 kilometers per hour,

Calculate the net force acting on the airplane as shown below,

The net force acting on the airplane = The velocity of the airplane + velocity of the wind  (As they both are in the same direction)

The net force acting on the airplane = 80 km / hr + 5 km / hr

The net force acting on the airplane = 85 km / hr

Thus, the net force acting on the airplane is added.

To know more about Force:

https://brainly.com/question/13191643

#SPJ2

Answer:

Kinetic Energy=1/2×m×v^2,Where m=mass,v=velocity. So, kinetic energy of the object=1/2×150×15^2 = 16875 kg m^2 s^-2 .

Explanation:

math lol

the maximum height reached by ball is 0.45m.

Given :-

spring constant ( k ) = 400N/m

mass of ball = 1kg

spring compressed ( x )= 0.150m

we calculate height by using mechanical energy conservation According to the principle of conservation of mechanical energy, The total mechanical energy of a system is conserved .

Mechanical energy is the sum of the potential and kinetic energies in a system :-

K₀ + U₀ = K + U    (eq 1)                    

where,

           K₀ = initial kinetic energy = 0

           U₀ = initial potential energy = \(\frac{1}{2} kx^{2}\)

           K = final kinetic energy when it reaches at its max height =0

           U = final potential energy when it reaches at its max height =mgh

The elastic potential energy is = \(\frac{1}{2} kx^{2}\)

                                                     =  0.5 × 400 × 0.15 × 0.15

                                                     = 4.5 J.  

putting value in eq 1 :-

                                    0 + 4.5 = 0 + mgh

                                     4.5 = 10h

                                      h=0.45m

Thus from the above conclusion we can say that the maximum height reached by the ball is 0.45m.

Learn more about the energy conservation here : https://brainly.com/question/20626677

#SPJ4

The tension in the lower segment of the belt is 219 N. To find the tension in the lower segment of the belt, we can start by analyzing the forces acting on the flywheel.

The net torque acting on the flywheel can be expressed as the product of its moment of inertia and angular acceleration, given by the equation:

\(\[ \tau = I \alpha \]\)

Since the axle is frictionless, the only torque acting on the flywheel is due to the tension in the lower segment of the belt. The moment of inertia of a solid disk can be calculated using the equation:

\(\[ I = \frac{1}{2} m r^2 \]\)

where m is the mass of the flywheel and r is its radius. Substituting this into the torque equation, we have:

\(\[ T_{\text{u}} \cdot r_{\text{pulley}} = \frac{1}{2} m r^2 \cdot \alpha \]\)

Rearranging the equation, we can solve for the tension in the lower segment of the belt:

\(\[ T_{\text{u}} = \frac{1}{2} \frac{m r^2 \alpha}{r_{\text{pulley}}} \]\)

Plugging in the given values, with the mass of the flywheel (m = 66.5 kg), radius of the flywheel (r = 0.625 m), radius of the pulley \((r_{\text{pulley}} = 0.230 m)\), and the angular acceleration \((\alpha = 1.67 rad/s^2)\), we can calculate the tension in the lower segment of the belt:

\(\[ T_{\text{u}} = \frac{1}{2} \frac{66.5 \cdot 0.625^2 \cdot 1.67}{0.230} = 219 \, \text{N} \]\)

Therefore, the tension in the lower segment of the belt is 219 N.

To learn more about tension refer:

https://brainly.com/question/24994188

#SPJ11

The height is same which height of the ball bounces compare to the height from which it was dropped.

In physics, collision, which is also known as impact, is the sudden, violent coming together in close proximity of two bodies, such as two pool cues, a golf club and a ball, a hammer and a nail, two railroad cars when coupled, or a falling object and a floor.

Collisions can occur in two ways: kinetic energy is conserved in inelastic collisions. Momentum is conserved in elastic collisions, as is kinetic energy.

A collision occurs when two particles, groups of particles, or solid objects move in the same direction and get close enough to one another to interact and have an impact on one another.

To know more about collision visit:

https://brainly.com/question/14644680

#SPJ4

Answer:

what are the statements?

Explanation:

Answer:

a) true

Explanation:

True, the depth of the troposphere over Ecuatorian regions is about 18 kilometers and 17 kilometers in the middle latitudes, whereas it is just 6 kilometers over the polar regions.  

The total charge flown across any cross section of the wire in time interval 0-T is determined from the area under the curve as ¹/₂i₀T.

option (2) is the correct answer.

The total charge flown across any cross section of the wire in time interval 0-T is calculated as follows;

The total charge flowing = area under the curve

area under the curve = ¹/₂ x base of the triangle x height of the triangle

area under the curve = ¹/₂ x T  x i₀

area under the curve = ¹/₂i₀T

Thus, the total charge flown across any cross section of the wire in time interval 0-T is determined from the area under the curve as ¹/₂i₀T.

Learn more about total charge here: https://brainly.com/question/14397213

#SPJ1

Answer:

Explanation:

thumbs down

thumbs up

thumbs up

thumbs down

thumbs up

The S-wave arrived first at one or more of the remaining recording stations: NCA, ANE, or ANE and VNQ.

Seismic waves are waves of energy that travel through the Earth's crust and interior following an earthquake. There are two main types of seismic waves: P-waves and S-waves. P-waves are faster and can travel through solid and liquid materials, while S-waves are slower and can only travel through solid materials.

The S-wave is a type of seismic wave that can only travel through solid materials. When an earthquake occurs, the S-wave is produced along with other types of waves, including P-waves. Because S-waves travel slower than P-waves, they arrive at seismic recording stations later than P-waves.

To determine which recording station detected the S-wave first, we need to look for the station that detected the S-wave before any other type of wave. In this case, we are given a list of four recording stations: VNQ, NCA, ANE, and VNQ.

Based on the properties of S-waves, we know that they can only travel through solid materials. Therefore, the S-wave can only be detected by recording stations that are located on solid ground. We can rule out the recording station that is not located on solid ground, which is VNQ.

Next, we need to consider the remaining three recording stations: NCA, ANE, and ANE and VNQ. We don't have enough information to determine which of these stations detected the S-wave first, but we know that at least two of them detected the S-wave before VNQ.

In summary, we can rule out the recording station that is not located on solid ground, VNQ, and determine that the S-wave arrived first at one or more of the remaining recording stations: NCA, ANE, or ANE and VNQ. This determination is based on the fact that S-waves can only travel through solid materials, so they can only be detected by recording stations that are located on solid ground.

To know more about S-waves click here:

https://brainly.com/question/18956633

#SPJ11