you push a block of 50kg with a force of 400 N over a distance of 8m. How much kinetic energy does the box gain?

Answer:

Electric Field intensity is zero.

The reason for that is:

All charges are placed at equal distances from the center of the square and have same magnitude and sign. This means they will exert equal and opposite forces on the test charge at the center. Net force will become Zero.

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The Correct choice is D

An individual’s mental predisposition that influences perceptual expectations is one’s perceptual set .

Answer:

put an X on the second one, the third one, the forth one, and the last one

Explanation:

can i get braineist pls

Answer:

6 hours

Explanation:

Answer:

all living things are made of cells

Explanation:

cells are kinda like matter but only for living thing like when someone says you white blood cell count is low its because they are part of you living body.

Answer:

500m

Explanation:

because 250+250 goood

Answer: The answer is (B) Observer A and Observer B are moving at different speeds relative to each other. And (A) Observer A is stationary and Observer B is moving

Explanation:

This question involves the concept of doppler's effect and its effect on the frequency of sound.

The situations that might cause the two observers to measure different frequencies for the same vibrating object are:

"A. Observer A is stationary and Observer B is moving.

B. Observer A and Observer B are moving at different speeds relative to each other."

Doppler's effect states that the apparent frequency of a source of sound is different than its original frequency. It further explains that whenever an observer and the source are in relative motion with each other, either the source or the observer or both are moving, then the frequency of sound measured by the observer will be different than the actual frequency. This changed frequency is called the apparent frequency and it depends upon the direction and magnitude of the relative motion of the observer and the source.

Hence, the measured frequency can be different for the two observers if they are in relative motion with the source, with different speeds, or in the case when one observer is stationary while the other is in motion.

Therefore, the situations that might cause the two observers to measure different frequencies for the same vibrating object are:

A. Observer A is stationary and Observer B is moving.

B. Observer A and Observer B are moving at different speeds relative to each other.

Learn more about Doppler's Effect here:

https://brainly.com/question/1330077?referrer=searchResults

The attached picture illustrates the formulae of Doppler's Effect.

Answer:

H = Vo t + 1/2 g t^2

Velocity and gravitational acceleration are vector quantities - it is very important to use the correct signs for these quantities to get the correct quantity for H the distance traveled.

The other force that must be acting on the duck is upthrust of 10 N.

The given parameters;

When the weight of the object is equal to the upthrust, the apparent weight will be zero and the object will float in the liquid. This is known as principle of floatation.

Since the given weight of the rubber duck is 10 N, then the upthrust on the duck will be 10 N to enable the duck float on the water.

Thus, the other force acting on the duck is upthrust of 10 N.

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Explanation:

We know ,

Answer:

Liam played danganrampa

Explanation:

At the equilibrium or balance point the meter stick stationary and the sum of the moments and forces acting on it is zero

Reason:

Known;

Length of the stick = 1 meter

Mass of the stick, m = 0.1 kg

Point the stick will balance when the dough is at one end = 0.33 m

Required:

How much mass does the dough have

Solution:

The meter stick is balanced when the clockwise moment and the anticlockwise moment about the balance point are equal

Let M, represent the mass of the dough, we have;

The center of mass of the meter stick = The 0.5 m point

Taking moment, we have;

Distance from the center of mas of the ruler to the fulcrum, d₁ = (0.5 - 0.33) m

Distance from the dough to the fulcrum, d₂ = 0.33 m

Clockwise moment, [tex]\mathbf{\sum M_{clockwise} }[/tex] = m × d₁

Anticlockwise moment, [tex]\mathbf{\sum M_{anticlockwise} }[/tex] = M × d₂

Therefore;

(0.5 - 0.33) × 0.1 = M × 0.33

Therefore, we get;

The mass the dough has, M = 0.0[tex]\overline{51}[/tex] kg = 51.[tex]\underline{\overline{51}}[/tex] grams

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https://brainly.com/question/21413785

Answer:

Distance, d = 0.1 m

It is given that,

Initial velocity of meson,

Finally, the meson is coming to rest v = 0

Acceleration of the meson,  (opposite to initial velocity)

Using third equation of motion as :

s is the distance the meson travelled before coming to rest.

So,

s = 0.1 m

The meson will cover the distance of 0.1 m before coming to rest. Hence, this is the required solution.  

Answer:

Chemical energy

Explanation:

Chemical energy is energy stored in the bonds of atoms and molecules. Batteries, biomass, petroleum, natural gas, and coal are examples of chemical energy. Chemical energy is converted to thermal energy when people burn wood in a fireplace or burn gasoline in a car's engine.

Answer:

K and H2

Explanation:

H2 is correct...

Thank you have a magnificent day ahead.

Answer:The net force acting on the car is 3×103 Newtons

Explanation:

3. The simple explanation for the Red Planet's color is that its regolith, or surface material, contains lots of iron oxide — the same compound that gives blood and rust their hue. ... It does have an iron core, but abundant iron exists in its upper layers, also.

Answer:

I know

Explanation:

it gets filterd out

Answer:

2g

Explanation:

Mass is force/area

16 N is the force because N is newtons and that measures force

8m/s^2 is the acceleration

They gave it to you right in front of you

Answer:

Volcanic activity acts as a window to a planet's interior. The type of volcanism and the composition of the lava give scientists a peak underneath the crust. The very presence of volcanic features tells scientists that a planet's interior is -or was - hot enough to form magma that erupted at its surface

Explanation:

hope it's helpful to you

Answer:

41.66 km/h

Explanation:

Calculate the distance of 1st travel :

v = d/t

25 km/h = d/1 h

d = 25 km/h × 1 h

Calculate the distance of 2nd travel :

v = d/t

50 km/h = d/2 h

d = 50 km/h × 2 h

Calculate the velocity of trip :

v = d/t

v = (25 + 100)/(1 + 2)

v = 125 km/3 h

So, my velocity for the trip is 41.66 km/h

Answer:

These layers are the troposphere, the stratosphere, the mesosphere and the thermosphere.

A further region, beginning about 500 km above the Earth's surface, is called the exosphere.

Explanation:

Hope this helps you. Have a nice day. Please mark as brainliest. It helps a lot.^_^

Answer:

thanks for the ok points

Explanation:

please don't delete this

I'm sorry I can't answer your question ok bye

The coefficient of friction on the box sliding to the left is 0.3.

The given parameters;

The acceleration of the box is calculated as follows;

[tex]F = ma\\\\a = \frac{36}{12.2} \\\\a = 2.95 \ m/s^2[/tex]

The coefficient of friction on the box is calculated as follows;

[tex]\mu_k = \frac{a}{g} \\\\\mu_k = \frac{2.95}{9.8} \\\\\mu_k = 0.3[/tex]

Thus, the coefficient of friction on the box is 0.3.

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Explanation:

TRUE - Two colliding objects will exert equal forces upon each other. If the objects have different masses, then these equal forces will produce different accelerations. ... FALSE - In any collision, the colliding objects exert equal and opposite forces upon each other as the result of the collision interaction.

The height of the ball after the given time of motion is 3.275 m.

The given parameters;

The distance traveled by the ball is calculated as follows;

[tex]h =h_0 + ut - \frac{1}{2}gt^2 \\\\h = 2.5 + 4(0.5) - (0.5\times 9.8\times 0.5^2)\\\\h = 3.275 \ m[/tex]

Thus, the height of the ball after the given time of motion is 3.275 m.

Learn more here:https://brainly.com/question/21180604

Answer:

I can't see the pic so I cannot ans

Answer:

It is facing away from the Earth.

Explanation:

If half of the moon is always illuminated by the sun, and we can't see the illuminated side during a new moon, the moon is turned away from the Earth.

Answer:

fL = fs(V/v-vs) 400000002= 40000010(331/331- vs). then find vs so easy