see the bellow image

Answer:

0 mph

Explanation:

Answer:

0 mph

Explanation:

Answer:

0.8 m/s

Explanation:

From the question,

MV = mv............................. Equation 1

Where M = mass of the cannon, m = mass of the cannonball, V = velocity of the cannon, v = velocity of the cannon ball.

make V the subject of the equation

V = mv/M........................ Equation 2

Given: m = 2 kg, M = 500 kg, v = 200 m/s

Substitute these value into equation 2

V = (2×200)/500

V = 400/500

V = 0.8 m/s

Answer:

once light hits a wet shirt, that water layer causes less of the blue shirt's blue wavelengths of light to be reflected toward your eyes and more of the blue light to be refracted, or bounce away from you, back into the fabric.

Explanation:

Answer:

the rotation period is that one rotation,one day or 24 hrs.

the revolution period is that one revolution,one year

Answer:

The rotation period and revolution period of moon is same.

Explanation:

Because,The moon keeps the same face pointing towards the Earth bcoz it's rate of spin is tidally locked so that it is synchronised with it's rate of revolution.

Therefore it's rotation and revolution period is once about every 27 days.

Hope this helps u..

The statement "though some self-report error may exist, surveys/interviews are useful in that they allow researchers to collect large amounts of data" is true.

A survey is a means of gathering information from a sample of people using pertinent questions with the goal of understanding populations as a whole.

It is given that:

The statement is:

Though some self-report errors may exist, surveys/interviews are useful in that they allow researchers to collect large amounts of data.

As we know from the definition of the survey, the gathering information from a sample of people using pertinent questions with the goal of understanding populations as a whole.

Even while surveys and interviews aren't perfect, you may still get a lot of information from them.

Thus, the statement "though some self-report error may exist, surveys/interviews are useful in that they allow researchers to collect large amounts of data" is true.

Learn more about the survey here:

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It's false. The length of the vector is going to remain the same but the direction is going to change.

Answer:

h = 204.1 m

Explanation:

Given that,

Time taken to reach the ground, t = 7 s

We need to find the height of the cliff. We can find it using second equation of kinematics as follows :

[tex]h=ut+\dfrac{1}{2}at^2[/tex]

Here,

u = 0 (at rest initially)

a = g

So,

[tex]h=\dfrac{1}{2}gt^2\\\\h=\dfrac{1}{2}\times 9.8\times 7^2\\\\h=204.1\ m[/tex]

So, the cliff's height is 204.1 m.

Answer:

0.00000408

Explanation:

Answer:   36000 N

Explanation:  I REALLY HOPE THIS HELPS I'M KINDA NEW AT THIS:] :]

Answer:

Explanation:

When the object falling attains terminal velocity , net force on it becomes zero. That means drag force becomes equal and opposite to its weight.

So drag force = mg

where m is mass of falling body and g is acceleration due to gravity .

The drag force is constant . It is doing work against the weight of falling body . Object is falling v m /s . That means drag force is doing work per second as follows

Work done per second = force x displacement per second

= mg x v

So

Power of drag force = mgv.

Pd = mgv.

Answer:

Attribution theory is concerned with how ordinary people explain the causes of behavior and events. ... “Attribution theory deals with how the social perceiver uses the information to arrive at causal explanations for events. It examines what information is gathered and how it is combined to form a causal judgment”. Therefore it is like cause and effect, but just with our feelings and actions.

Explanation:

It basically helps us reflect and open up on what we have done in an easier way...

Answer:

HI

Explanation:

Answer:

55

Explanation:

Answer: it is B

Explanation: A penumbral lunar eclipse occurs when the Moon passes through Earth's penumbra. The penumbra causes a subtle dimming of the lunar surface, which is only visible to the naked eye when about 70% of the Moon's diameter has immersed into Earth's penumbra.

Answer:

Some protists move using cilia and flagella. Fungi do not move but have fast growing hyphae.

Explanation:

trust me

Answer:

if your in a car and you suddenly stop since you were in motion you fling forward while the car is stopped because an object in motion stays in motion unless it's stopped by an outside force and that's why we have seatbelts

Newton’s 1st Law of Motion is the motion of an object remains the same unless it is acted upon by a force.

A force is an effect that can alter an object's motion according to physics. An object with mass can change its velocity, or accelerate, as a result of a force. An obvious way to describe force is as a push or a pull. A force is a vector quantity since it has both magnitude and direction.

If your in a car and you suddenly stop since you were in motion you fling forward while the car is stopped because an object in motion stays in motion unless it's stopped by an outside force and that's why we have seatbelts.

Newton’s 1st Law of Motion is the motion of an object remains the same unless it is acted upon by a force.

To learn more about force refer to the link:

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Answer:

182.04

Explanation:

0.888×205=n

that where you the answer

#CarryOnLearning

Answer:Hope this helps!!!!!

Explanation:

People are fascinated with high-speed travel. A Boeing 747 flies at about 550 miles per hour. The Concorde Supersonic Transport flew over twice as fast at about 1350 miles per hour. That is impressively fast, but consider the speeds that we passengers on planet Earth always travel. The circumference of the Earth at the equator is 24900 miles and the residents of the tropic areas travel that distance every 24 hours. They are traveling over a thousand miles an hour. At 38° latitude we are traveling about 820 miles per hour. That is quite impressive but it pales in comparison with the orbital speed of the Earth, The average distance of the Earth from sun is 93.5 million miles. This means that in 365.25 days the Earth travels 587.5 million miles. This works out to about 67 thousand miles per hour. This is the speed we travel 24 hours a day, 365.25 days a year.

The orbital velocity is 2πR/T where R is the average radius of the orbit and T is the length of the year. The orbital velocity of a planet relative to that of Earth's is then the relative radius divided by the relative length of the year.

Answer:

Gravitational pull of the sun

Explanation:

Explanation:

Although the iceberg has less internal energy per mass, its enormously greater mass gives it a greater total energy than that in the small cup of coffee

Answer:

The hot coffee has a higher temperature, but not a greater internal energy. Although the iceberg has less internal energy per mass, its enormously greater mass gives it a greater total energy than that in the small cup of coffee.

Explanation:

Answer: 3.0 m/s

Explanation:

Answer:

d.

Explanation:

Since the dart's initial speed v at angle has both vertical and horizontal components v₀sinθ and v₀cosθ respectively, the vertical component of the speed continues to decrease until it hits the target. It's displacement ,s is gotten from

s = y - y₀ = (v₀sinθ)t - 1/2gt² where y₀ = 0 m

y - 0 = (v₀sinθ)t - 1/2gt²

y = (v₀sinθ)t - 1/2gt²

which is the parabolic equation for the displacement of the dart.

Note that the horizontal component of the dart's velocity does not change during its motion.

Since the target falls vertically, with initial velocity u = 0 (since it was stationary before the string cut), it's displacement ,s' is gotten from

s' = y - y₀' = ut - 1/2gt² where y₀' = initial height of target above the ground

= (0 m/s)t - 1/2gt²

= 0 - 1/2gt²

y - y₀' = - 1/2gt²

y = y₀' - 1/2gt²

which is the parabolic equation for the displacement of the target.

The equation for both the displacement of the dart and the target can only be gotten if we considered vertical motion. So, the displacement component of both the dart and target are both vertical.

So, the answer is d.

Explanation:

Contact, vision, sound, flavor, and smell are all markers of energy transformations. The most basic example would be when we notice something has begun to pass through vision. Whenever an entity accelerates or slows down, energy is constantly transformed.

Explanation:

Introduction to the quantum mechanical model of the atom: Thinking about electrons as probabilistic matter waves using the de Broglie wavelength, the Schrödinger equation, and the Heisenberg uncertainty principle. Electron spin and the Stern-Gerlach experiment. 

Explanation:

Without the metric system, we'd have a different International System of Units, the metric system is important because 1mm is 0.1cm, 1 cm is 0.01m, with the imperial system the conversion is tedious. The most important feature of the metric system is its base in scientific fact and repeatable standards of measurement

Answer:

these are in the hooks the balloons repel each other if the hooks are isolated.

Explanation:

In electrostatics, charges of the same sign repel and of a different sign attract each other.

With this explanation we analyze the situation presented, they indicate that the balloons have a negative taste, so when these are in the hooks the balloons repel each other if the hooks are isolated.

If the hooks are connected to Earth, the poop of the balloons is neutralized, so there is neither attraction nor repulsion.

Answer:

Here you go : )

Explanation:

Answer:

6600sec

Explanation:

T=sv

T=200m*33m/s

T=6600sec