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Answer: 5.5 hours

Explanation: 44/8=5.5.

Answer:

5.5 Hours at 8mph to go 44 miles

Explanation:

d=s/t

t=s/d

44/8 = 5.5  time it took 5.5 hours it will take him to ride 44 miles

Answer:

wood because, Coal, oil and natural gas are examples of natural gas. Biogas is the mixture of gases produced by the breakdown of organic matter in the absence of oxygen, usually consisting of certain quantities of methane and other constituents. therefore wood is not a fossil fuel

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Answer:

Matter

Explanation:

To find the correct answer, you have to try all of the answers. Like below:

All cannot be created or destroyed.

This doesn't make sense.

Mass cannot be created or destroyed.

This may sound correct, but when you look at the big picture, this is wrong.

Matter cannot be created or destroyed.

This is correct because it is a saying created long ago and proven with experiments.

Galaxies cannot be created or destroyed.

This is wrong because new galaxies are being created everyday!

Stars cannot be created or destroyed.

This is wrong because like galaxies, new stars are being created everyday!

Answer:

your velocity is 2.5 m/sec

Answer: 1.Magnification and resolution are important because the magnification in larges the image and the resolution makes it move shape and detailed creating the perfect image.  2. i dont know the second one, sorry

Explanation:

Answer:

it is due to the elastic rubber and the air pressure builds up and the rubber expands

Answer: But with that germ-ridden egg comes a mortal danger: Osmosis discovers Frank has really contracted a villainous and black-hearted deadly virus known as Thrax who arrives and is plotting to ultimately overheat Frank's body, killing him from the inside out!

Answer:

the rate at which an object cools is proportional to the difference in temperature between the object and the object's surroundings.

To state  Newton's Law of cooling we say "According to Newton's law of cooling, the speed at which an item cools is proportional to the temperature differential between the object and its surroundings.".

Generally, According to Newton's law of cooling, the speed at which an item cools is proportional to the temperature differential between the object and its surroundings.

In conclusion, Newton's Law of cooling applies to the temperature interaction of an object and its environment.

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Answer:

[tex]a=0.284\ m/s^2[/tex]

Explanation:

Given that,

Initially, the spaceship was at rest, u = 0

Final velocity of the spaceship, v = 11 m/s

Distance accelerated by the spaceship, d = 213 m

We need to find the acceleration experienced by the occupants of the spaceship during the launch. It is a concept based on the equation of kinematics. Using the third equation of motion to find acceleration.

[tex]v^2-u^2=2ad\\\\a=\dfrac{v^2-u^2}{2d}\\\\a=\dfrac{(11)^2-(0)^2}{2\times 213}\\\\a=0.284\ m/s^2[/tex]

So, the acceleration experienced by the occupants of the spaceship is [tex]0.284\ m/s^2[/tex].

Answer each friend will get 3.33333 repeating if he is included. if only his friends are getting them then each one gets 4

Explanation:

devide 20/6 and 20/5 respectively.

Answer:

Yes ma’am I’m not doing it ok I’m sorry I didn’t mean to kitty you didn’t know that I was just trying to kitty kitty mama mama daddy mama mama I don’t wanna talk about it anymore I’m not gonna be mad I just got kicked out of the house I just woke me down and I’m sorry for the time you got snap I just got kicked out of the house I just woke me a text

Explanation:

Answer:

The ear has external, middle, and inner portions. The outer ear is called the pinna and is made of ridged cartilage covered by skin. Sound funnels through the pinna into the external auditory canal, a short tube that ends at the eardrum (tympanic membrane).

The function of the outer ear is to collect sound waves and guide them to the tympanic membrane. The middle ear is a narrow air-filled cavity in the temporal bone. It is spanned by a chain of three tiny bones—the malleus (hammer), incus (anvil), and stapes (stirrup), collectively called the auditory ossicles.

Answer: 3.775 KG

Explanation:  W = 37 N

                        m = ?

               AS WE KNOW THAT

                        W = mG

                         37 = m 9.8

                         m = 37/9.8

                          m = 3.775 KG

Answer:

A.

Explanation:

You need to imagine how the volcano erupts to know how the volcano works.

Complete question is;

Annealing is a process by which steel is reheated and then cooled to make it less brittle. Consider the reheat stage for a 100 mm thick plate (ρ = 7830 kg/m³, Cp = 550 J/Kg.K, k = 48 W/m K). The plate initially is at 200 °C and is to be heated to a minimum temperature of 550 °C. Heating is effected in a gas-fired furnace where the products of combustion at T∞ = 800 °C maintain a convection heat transfer coefficient of h = 250 W/m.K on both surfaces of the plate. How long should the plate be left in the furnace?

Answer:

860 seconds

Explanation:

We are given;

Initial Temperature; T_i = 200 °C

Minimum Temperature; T_o = 550 °C

T∞ = 800 °C

convection coefficient; h = 250 W/m².K

ρ = 7830 kg/m³

Cp = 550 J/kg K

k = 48 W/m K

Plate thickness = 100mm

Thus,L = 100/2 = 50mm = 0.05 m

Let's find the biot number from the formula;

Bi = hL/K

Bi = (250 × 0.05)/48

Bi = 0.2604

Now, lowest temperature in the slab is given as;

θ_o = (T_o - T∞)/(T_i - T∞)

θ_o = (550 - 800)/(200 - 800)

θ_o = 0.4167

Now, from online tables calculation, we can find the root of the biot number.

Thus, root of the biot number Bi = 0.2604 is;

ζ1 = 0.488 rad

Also, C1 is gotten as 1.0396

Now,formula for thermal diffusivity is;

α = k/ρc

α = 48/(7830 × 550)

α = 1.115 × 10^(-5) m²/s

Also, from online tables, f(ζ1) = 0.401

Thus, we can find the time the plate should the plate be left in the furnace from;

-(ζ1)²(αt/L²) = In 0.401

-(ζ1)²(αt/L²) = -0.9138

t = (-0.9138 × 0.05²)/-(0.488² × 1.115 × 10^(-5))

t ≈ 860 s

Answer:

6 mph

Explanation:

18 divided by 3 equals 6. The person walks 6 miles per hour.

Answer;

Newton's laws models the motion of a body perfectly well.

The knowledge of the force acting on a body gives a good grasp of the resulting  motion.

There are three know laws of motion postulated by Newton;

 1st law; it states that an object will remain in its state of rest or uniform motion unless if it is acted upon by an external force.

 2nd law: it states that the acceleration of a body depends on the mass and force acting on it.

3rd law: it states that action and reaction are equal and opposite.

A sound understanding of these law's can help predict and model the motion of a body .

The function of sleep theory supported by the illustration is sleep conserves and protects.

From the first sentence, bats sleep a lot because they face little danger from predators and as such, they have a high-calorie diet of insects.

From the second sentence, cows sleep less, because they face more danger from predators and as such, they have a low-calorie diet of insects.

We can conclude that sleep helps to keep animal safe. Therefore, the correct option will be, "Sleep conserves and protects".

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Atoms, molecules, and ions are the smallest particles that make up all matter. These microscopic particles are always in motion, either colliding or oscillating back and forth. Heat (or thermal) energy is created by the motion of particles and is found in all matter. As a result, thermal energy may be defined as an object's ability to perform work as a result of particle movement. Thermal energy is a form of kinetic energy, which is the energy associated with motion, because it is generated by the movement of particles.

Answer: TOTAL DISPLACEmENT = 312.5 m

Explanation:  BY USING FORmULA OF AREA OF TRIANGLE

                        TOTAL DISPLACEmENT = 1/2 BASE X ALTITUDE

                                                                   = 1/2 (25-0)(35-10)

                                                                   =  1/2 (25)(25)

                                                                   =  625/2

                                                                   =  312.5 m

Answer: 25

Explanation ;)

Answer:An object has balanced forces acting on it and constant velocity.

Explanation:

Answer:

15 W

Explanation:

Answer:

15 W

Explanation:

60vibrations per minute

Usually 1 hertz equals to 1 vibration per second

Total vibration=60

So option C is correct

For an image formed 16 cm behind a convex lens whose focal length is 8 cm, the position of the object is mathematically given as

o=16cm

Question Parameter(s):

An image is formed 16 cm behind a convex lens

focal length is 8 cm

Generally, the equation for the   is mathematically given as

1/f=1/o+1/i

Therefore

1/8=1/o+1/16

o=16cm

In conclusion, the position is

o=16cm

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Explanation:

According to Newton's second law of motion:

Force is directly proportional to

Change of momentum/time taken

Change of momentum= mv-mu

where m is mass, u is initial velocity and v is final velocity. so,

F∝mv-mu/t

F∝m(v-u)/t

F∝ma (a=v-u/t)

F=kma where k is a constant

In SI units the value of k will become one so the equation will be:

F=ma

Answer:

Explanation:

Given that the acceleration of the car is

a=4m/s^2

and also the distance covered is

d=150m  

from the problem "The cars were neck and neck the whole way after traveling 150 meters"

this means velocity was constant throughout

s=ut+1/2at

150=0*t+4t/2

150=2t

divide both sides by 2

t=150/2

t=75seconds  

Answer:

72watts

Explanation:

360/5

=72watts

Answer:

Simple, plug 4 into c.

4 + 5 = 13

Is this true, no. So therefore c is not equal to 4.

Answer:

50

Explanation: