1) A net force of 2.5 N is applied to an object with a mass of 16.2g what’s the acceleration?

Answer:

The unit of current is defined as the flow of 1 coulomb of charge in one second

Using the given materials, students can best investigate the following experimental questions:

A. What is the focal length of the mirror?
To investigate this, students can place the object at different distances from the concave mirror until a clear, inverted image is formed on the screen. By measuring the distance between the mirror and the object (object distance) and the distance between the mirror and the screen (image distance), students can use the mirror formula (1/f = 1/u + 1/v) to calculate the focal length of the mirror, where f is the focal length, u is the object distance, and v is the image distance.

C. What is the magnification of the mirror?
To investigate the magnification, students can measure the height of the object and the height of the corresponding image formed on the screen. By dividing the height of the image by the height of the object, they can determine the magnification (M) of the mirror (M = image height/object height). Additionally, they can confirm their result by comparing the magnification obtained from height measurements with the one obtained from the object and image distances (M = -v/u).

These experimental questions can be investigated using only a spherical concave mirror, a screen, an object, and a ruler, and will help students explore the properties of concave mirrors effectively.

Learn more about concave mirror here:

https://brainly.com/question/3555871

#SPJ11

Answer:

0.12 kW

Explanation:

Given that

The flow rate of air (V)=0.3 ft³/s

V=0.008 m³/s

Pressure, P=14.7 psia

P=1.013529 atm=101.325  kPa

Inlet temperature = 70° F=294.261 K

Exit temperature = 83° F=301.483 K

We know that , specific heat capacity of the air

Cp=1.005 kJ/kg.K

The mass flow rate of air is given as

\(\dot{m}=\dfrac{P\times V}{R\times T}\\\dot{m}=\dfrac{101.325\times 0.008}{0.287\times 294.261}\\\dot{m}= 0.0095\ kg/s\)

By using energy conservation

\(Electric\ power =\dot{m}\times C_p\times (T_2-T_1)\\Electric\ power =0.0095\times 1.005\times (83-70)=0.12\ kW\)

Therefore electric power dissipate by components will be 0.12 kW.

The magnitude of the acceleration of the body is approximately 1.802 m/s^2 when forces of magnitude 5 Newton and 4 Newton act on a body of mass 4.0 kg at a right angle to each other.

To determine the magnitude of the acceleration of a body when two forces act on it at a right angle, we can use the Pythagorean theorem and Newton's second law of motion.Newton's second law states that the net force acting on an object is equal to the mass of the object multiplied by its acceleration (F = ma). In this case, the net force is the vector sum of the two forces acting on the body.Using the Pythagorean theorem, we can find the magnitude of the net force. Let's call the force with magnitude 5 Newton as F1 and the force with magnitude 4 Newton as F2. The net force (Fnet) can be calculated as the square root of the sum of the squares of the individual forces: Fnet = sqrt(F1^2 + F2^2).Now we can substitute the net force into Newton's second law to find the acceleration (a). Rearranging the formula, we have a = Fnet / m.Plugging in the values, Fnet = sqrt(5^2 + 4^2) = sqrt(25 + 16) = sqrt(41) Newtons. The mass (m) is given as 4.0 kg.

Finally, the magnitude of the acceleration of the body is calculated as a = Fnet / m = sqrt(41) / 4.0 ≈ 1.802 m/s^2.

For more such questions on magnitude

https://brainly.com/question/30337362

#SPJ8

The average rate of aftershocks 100 days after a magnitude 7 event can be estimated based on the assumption that the rate of aftershocks follows a decay pattern over time. A commonly used model for this is the Omori's law.

Omori's law states that the rate of aftershocks decreases with time following a power-law decay. However, estimating the specific value of the average rate 100 days after the event requires knowledge of the parameters of the decay model, such as the exponent and initial rate.

Without those specific parameters, it is not possible to provide an accurate estimation of the average rate of aftershocks 100 days after the magnitude 7 event. Additionally, the behavior of aftershocks can vary depending on the specific earthquake and geological conditions.

It is important to consult seismologists and earthquake experts who can analyze the specific details of the event and the region to provide a more accurate estimation of the aftershock rates.

For more such questions on average

https://brainly.com/question/966088

#SPJ8

Because a particular sensitizer can absorb photons of one wavelength and release photons of a longer wavelength. The radiation must be at a longer wavelength because The energy produced by light is inversely proportional or related to the wavelength of light.

Fluorescence is emitted by most sensitizers as a result of some of the energy from the initial excited singlet state. Because emitted light is generally less energy than absorbed light, the emitted light has a longer wavelength.

The physical or chemical adsorption of colored materials absorbs visible or solar light and excites it to the singlet or triplet excited state in the surface sensitizer process.

When an excited molecule (the donor or photosensitizer) generates photochemical reactions in molecules (the acceptor or quencher) which are not photochemically reactive by themselves, i.e. do not absorb light in the specified wavelength range, the process is deemed photosensitized.

Learn more about the wavelength of light:
https://brainly.com/question/10728818
#SPJ1

Answer:

White light can be separated into different colors using a special lens called a prism. As visible light passes from air into the glass, the change in medium causes a change in direction and speed. Refraction causing the separation of white light into its various color wavelengths is called dispersion.

hope this helps

The force applied to the ball is 11 Newtons.

To solve this problem, we need to use Newton's second law of motion, which states that the force applied to an object is equal to its mass times its acceleration:

F = m * a

Here, we are given the acceleration of the soccer ball when it is kicked by a player. The acceleration is 22 m/s² forward. We are also given the mass of the ball, which is 0.5 kg.

To find the force applied to the ball, we simply need to plug these values into the equation:

F = m * a

F = 0.5 kg * 22 m/s²

F = 11 N

Therefore, the force applied to the ball is 11 Newtons.

Note that the unit of force is Newtons (N), which is the SI unit of force. The Newton is defined as the amount of force required to give a mass of 1 kilogram an acceleration of 1 meter per second squared. In this case, the force applied to the soccer ball is 11 Newtons, which means that it is enough force to give the ball a mass of 0.5 kg an acceleration of 22 m/s² forward.

Learn more about force

brainly.com/question/13191643

#SPJ11

Explanation:

hope this may help you

have a nice day

End products violating conservation of charge or mass number:

\(a) 32He + 62Nib) 31H + 71Lic) 24Mg + 69Tmd) 28Si + 65Cu\)

32He + 62Ni

In this reaction, the total charge on the left side is 3 (from the deuterium nucleus) + 3 (from the lithium nucleus) = 6. Therefore, the total charge on the right side should also be 6. Option a) has a total charge of 8, violating the conservation of charge. Additionally, the total mass number on the left side is 2 (from the deuterium nucleus) + 7 (from the lithium nucleus) = 9. Therefore, the total mass number on the right side should also be 9. Option a) has a total mass number of 94, violating the conservation of mass number. Options b), c), and d) all satisfy the conservation of charge and mass number.

Learn more about conservation here:

https://brainly.com/question/9530080

#SPJ11

The statement "Since monsoons are storms that usually occur during a specific time of year in certain regions, you could not compare them to thunderstorms" is absolutely false.

Monsoon may be characterized as a seasonal transformation in the direction of the predominant, most potent, currents of a region. It blows from cold to warmer regions of the geographical locations.

Thunderstorms basically originated identically with monsoons more frequently. Monsoon involves sudden and gradual rainfall, extreme wind, and a drop-down in temperature.

The occurrence of monsoon is fixed at different geographical locations, but the occurrence of thunderstorms will not be definite or predominantly known.

Thus, the statement "Since monsoons are storms that usually occur during a specific time of year in certain regions, you could not compare them to thunderstorms" is absolutely false.

To learn more about Monsoon, refer to the link:

https://brainly.com/question/21280463

#SPJ1

Answer:

False

Explanation:

The  time taken to travel 1.5 m across the inclined plane if it starts from rest at the top be 0.95second.

An inclined plane, sometimes referred to as a ramp, is a flat supporting surface that is tilted at an angle and used to help raise or lower a weight with one end higher than the other.

One of the six traditional simple devices that Renaissance scientists defined is the inclined plane. Heavy weights are transported over vertical obstacles using inclined planes. Examples include a ramp used to load cargo onto a truck, a pedestrian ascending a ramp, an automobile ascending a grade, and a train ascending a gradient.

Given that:

angle of inclination = 20°.

Length of the inclined plane = 1.5 m.

Acceleration along the inclined plane = g sin20° =

Hence, time taken to travel 1.5 m across the inclined plane if it starts from rest at the top = √(2l/gsinθ = √(2×1.5/9.8sin20°) second = 0.95second.

Learn more about inclined plane here:

https://brainly.com/question/14983337

#SPJ1

42000 kilometers

Explanation:

distance is velocity × time

28000 ×1.5

42000

remember to match units

thats why i wrote 1.5 hours instead of 90minutes

Given data-Mass of the pumpkin, m = 7.77 kgHeight from which pumpkin falls, h = 12.3 mTime taken by pumpkin to come to rest, t = 444 ms = 0.444 s. Average force imparted by the ground on the pumpkin = F, Here, we need to calculate the average force exerted by the ground on the pumpkin.

We can calculate the same using the work-energy principle. According to the work-energy principle, the work done on an object is equal to the change in its kinetic energy. Mathematically, W = ΔKE  Total work done on the pumpkin is equal to the work done by the gravitational force of the earth on the pumpkin when it falls from a height of h. So, W = mghHere, g = 9.81 m/s² is the acceleration due to gravity. Work done by the ground on the pumpkin when it comes to rest = -1/2 mv². By the work-energy principle, W = work done by the ground + work done by gravity on the pumpkin= -1/2 mv² - mghHere, the final velocity of the pumpkin, v = 0 as it comes to rest. Therefore, W = -mghAs we know, W = Fd, where d is the distance through which the force is applied. Here, d = h.Hence, F = -mgThe negative sign indicates that the direction of the force exerted by the ground is opposite to the direction of motion of the pumpkin (i.e., upward direction). So, substituting the given values,m = 7.77 kg, g = 9.81 m/s², h = 12.3 mF = - (7.77 kg) × (9.81 m/s²) × (12.3 m) = -907.1961 N (upward)Therefore, the average force imparted by the ground on the pumpkin is 907.1961 N (upward).

Learn more about the Gravitational force :

https://brainly.com/question/72250

#SPJ11

The average distance of the object from the Sun is 4.88 x 10¹¹ m.

The average distance from the sun is calculated as follows;

(T² / a³) = (4π² / GM)

Where;

a = (GMT² / 4π²)^(1/3)

a = [(6.67 x 10⁻¹¹ x 1.989 x 10³⁰ x  (5.91 x 3.15 x 10⁷)² / (4π²)]^(1/3)

a = 4.88 x 10¹¹ m

Learn more about orbit here: https://brainly.com/question/28106901

#SPJ1

my views

Explanation:

Figure (8) shows a rod made up of copper and wood joined together. The rod is heated at the joint in the centre for about a minute. At which point – A, B, C or D, would it show the lowest temperature? PLEASE GIVE REASONS ALSO(MINIMUM 2)

Answer:

A. the time of fire is 15 seconds, and the angle of fire is approximately 23.794° above the horizontal

B. The angle of fire is increased to approximately 35.4126° above the horizontal

Explanation:

A. The height of the bridge, h = 70 m

The speed with of the shell, v₀ = 100 m/s

The location of the speedboat = 3000 m

The direction of the speedboat = 26 m/s

The acceleration of the speedboat, a = 11 m/s²

Let t represent the time of firing the shells, and let x represent the distance of the speedboat from the bridge, and let θ, represent the angle to fire with, we have;

For the speedboat, t = x/(100 × cos(θ))

We note that the time the shell can travel the 3,000 m = 30 seconds

Therefore an adequate time to fire is, t = 15 seconds

The distance the speedboat covers in 15 seconds is given as follows;

s = u·t + 1/2·a·t²

s = 26 × 15 + 1/2 × 11 × 15² = 1627.5 m

At the point the speedboat had traveled 1,627.5 m, the distance of the speedboat, x is then 3000 - 1,627.5 = 1,372.5 m from the bridge, the angle of fire is given from the following formula;

t = x/(100 × cos(θ))

15 = 1,372.5/(100 × cos(θ))

cos(θ) = 1,372.5/(15 × 100) = 0.915

θ = cos⁻¹(0.915) ≈ 23.794°

The angle of fire, θ ≈ 23.794° above the horizontal in the direction of the speedboat

B. Given that a 10 m/s wind is blowing towards East, we have;

The horizontal velocity towards East = 10 + v₀ × cos(θ)

The angle of firing is therefore, given as follows;

15 = 1,3725.5/(10 + 100 × cos(θ))

(10 + 100 × cos(θ)) = 1,3725.5/15

100 × cos(θ) = 1,372.5/15 - 10

cos(θ) = (1,372.5/15 - 10)/100 = 0.815

θ = cos⁻¹(0.815) ≈ 35.4126°

Therefore, the angle of fire, θ, will be increased to approximately 35.4126° above the horizontal in the remote controlled speedboat direction.

Answer:

https://earthobservatory.nasa.gov/features/EnergyBalance#:~:text=The%20atmosphere%20absorbs%2023%20percent,surface%20radiates%20only%2012%20percent.

Explanation:

Answer:

A. The astronaut would way somewhat less

The planet Jupiter has much more mass than Earth, is an astronaut who landed on Jupiter would weigh more on Jupiter than on Earth. Thus, the correct option is D.

Jupiter is a planet of the Solar system of the Milkyway galaxy. It is made up of mostly hydrogen and helium gas. The temperature on this planet is extremely hot and an astronaut landing on this planet will experience free-floating in mid-Jupiter with no way of escaping.

Jupiter has more mass than that of the Earth thus, it exerts greater gravitational force than the Earth, and the weight is equal to the product of the mass and the gravitational acceleration. So, the mass of an astronaut will remain constant when he or she move from earth to jupiter however the weight of the astronaut will increase on jupiter.

Therefore, the correct option is D.

Learn more about Jupiter here:

https://brainly.com/question/7439758

#SPJ6

I'm guessing that you need the force, since the question doesn't specify I'll just use the force equation. If this is not what you wanted let me know in the comments section of this answer.

- F = 300 x 4

- F = 1200 N (newtons)

Answer:

intellectual disabilities

Founded in 1968 by Eunice Kennedy Shriver, Special Olympics provides people with intellectual disabilities continuing opportunities to realize their potential, develop physical fitness, demonstrate courage and experience joy and friendship.

Explanation:

The power delivered to the headlight is 460.8 Watts.

Power is the ability to influence others and to control resources, people and situations. It is a central concept in politics, economics and social studies, and is often defined as the ability to determine the behaviour of others.

The total energy delivered by the battery over the 8-hour discharge period can be calculated as follows:
Energy = Power x Time
Energy = 460.8 Watt-hours
To calculate the power delivered to the headlight, we first need to know the current being drawn by the headlight. Assuming that the headlight is a 12V bulb, the current can be calculated as follows:
Power = Voltage x Current
460.8 = 12V x Current
Current = 38.4 Amps
Therefore, the power delivered to the headlight is 12V x 38.4A = 460.8 Watts.

To learn more about power
https://brainly.com/question/8434553
#SPJ4

When rubidium forms an ion, it loses an electron and has an octet in the next-lowest energy level.

Rubidium, being a Group 1 alkali metal, has one valence electron in its outermost energy level. In order to achieve a stable electron configuration, it tends to lose this valence electron and form a cation with a positive charge. By losing an electron, rubidium achieves a noble gas configuration, resembling the electron arrangement of the previous noble gas, in this case, krypton, which has a filled octet in its next-lowest energy level.

The formation of a rubidium ion involves the loss of one electron, resulting in a positively charged cation. This electron loss allows rubidium to achieve a more stable electron configuration by attaining a filled octet in the next-lowest energy level.

To know more about rubidium click here:

https://brainly.com/question/4994855

#SPJ11

According to the given statement is 43.7 N average force acts on the ball.

The average force is a force applied by an object travelling more than a specific period of time at a given rate of speed, or velocity. This velocity is not instantaneous or accurately measured, as the word "average" implies.

Mass of tennis ball is =57 gm

velocity of ball=21 m/s

At a speed of 25 m/s, the player volleys the ball back (i.e. in opposite of initial direction)

Time of contact=0.06 s

We know change in momentum(ΔP)  = Impulse (Fdt)

Initial momentum = 57 * 10⁻³ * 21

Final momentum = -57 * 10⁻³ * 25

Change in momentum

ΔP = 57 * 10⁻³ * 21 - (-57 * 10-3 * 25)

ΔP =  57 * 10⁻³ * 46 = 2.622 kg-m/s

Now 2.622 kg-m/s = F\(_a_v_g\) * 0.06

F\(_a_v_g\) = 43.7 N

To know more about Average force visit:

https://brainly.com/question/24704743

#SPJ4

Heat transport (delta Q) reduced by temperature equals the change is entropy (delta S) (T). the environment's and the system's entropy for a particular physical process.

Entropy rises in proportion to temperature. Molecules as well as the frequency of random activity are excited by the addition of more energy to a system. Entropy rises as the gas in a system grows.

Exactly, as directed electric energy is converted to randomly oriented heat energy, entropy rises. Random thermal energy typically has high entropy. An external power supply that is advertised as being 100% effective at converting electrical energy to thermal energy is sold by one business.

To know more about energy visit :

https://brainly.com/question/1932868

#SPJ1

Answer:

a = 2.8 m/s2

Explanation:

a = Δv ÷ Δt

a = 28 ÷ 10

a = 2.8 m/s2