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Answer:

E = 24000 N/C = 24 KN/C

Explanation:

The electric field experienced by a test charge is given by the following formula:

[tex]E = \frac{F}{q}\\\\[/tex]

where,

E = Electric Field = ?

F = Force of attraction = 3 x 10⁻⁶ N

q = Charge on piece of lint = 1.25 x 10⁻¹⁰ C

Therefore, using these values in the equation, we get:

[tex]E = \frac{3\ x\ 10^{-6}\ N}{1.25\ x\ ^{-10}\ C}\\\\[/tex]

E = 24000 N/C = 24 KN/C

Answer:

A) so the conditions for the expirament don’t affect the outcome

b) to make sure the results are conclusive and accurate

Explanation:

Answer:

4.02 s

Explanation:

From the question given above, the following data were obtained:

Angle of projection (θ) = 35°

Initial velocity (u) = 50 m/s

Acceleration due to gravity (g) = 10 m/s²

Time of flight (T) =?

The time of flight of the arrow can be obtained as follow:

T = 2uSineθ / g

T = 2 × 35 × Sine 35 / 10

T = 70 × 0.5736 / 10

T = 7 × 0.5736

T = 4.02 s

Therefore, the time taken for the arrow to return is 4.02 s

Answer:

True

Explanation:

This is true because in an energy flow, the primary producers such as plants produce their own foods by using energy from the sun. These primary producers are consumed by primary consumers such as rabbits for food, while secondary consumers such as snakes would consume the primary consumers.

By so doing, energy flows from one trophic level to the other.

Answer:

206

Explanation:

The axial skeleton, comprising the spine, chest and head, contains 80 bones. The appendicular skeleton, comprising the arms and legs, including the shoulder and pelvic girdles, contains 126 bones, bringing the total for the entire skeleton to 206 bones.

A fully grown adult features 26 bones in the spine, whereas a child can have 34.

Answer:

The human body is made up of 206 bones

Answer:

5.47 m/s

Explanation:

p=ma

575=105v

v=575/105

v=5.47 m/s

mark as brainliest

Answer:

cola forms so slowly that we could use up the supply that exists now

Answer: c and d

Explanation:

Answer:

c because you see with your eyes and c rhymes with eyes

Answer:

The pressure in a liquid is due to the weight of the column of water above. Since the particles in a liquid are tightly packed, this pressure acts in all directions. For example, the pressure acting on a dam at the bottom of a reservoir is greater than the pressure acting near the top.

Answer:

Fluid pressure can be caused by gravity, acceleration, or forces in a closed container. Since a fluid has no definite shape, its pressure applies in all directions.

Explanation:

Answer:

500 N

Explanation:

Since the work done on the spring W = Fx where F = force applied and x = compression length = 0.170 m (since the spring will be compressed its full length when the force is applied)

Since W = 85.0 J and we need to find F,

F = W/x

= 85.0 J/0.170 m

= 500 N

So, the  magnitude of force must you apply to hold the platform stationary at the final distance given above is 500 N.

Answer:

It is observed that when a compass is brought near a current carrying conductor the needle of compass gets deflected because of flow of electricity. This shows that electric current produces a magnetic effect.

True im not 100% sure but I tried.

Answer:

[tex]124.62\ \text{rad/s}[/tex]

[tex]3.71\ \text{m/s}[/tex]

[tex]1.23\ \text{km/s}^2[/tex]

[tex]20.28\ \text{m}[/tex]

Explanation:

r = Radius of disk = 7.9 cm

N = Number of revolution per minute = 1190 rev/minute

Angular speed is given by

[tex]\omega=N\dfrac{2\pi}{60}\\\Rightarrow \omega=1190\times \dfrac{2\pi}{60}\\\Rightarrow \omega=124.62\ \text{rad/s}[/tex]

The angular speed is [tex]124.62\ \text{rad/s}[/tex]

r = 2.98 cm

Tangential speed is given by

[tex]v=r\omega\\\Rightarrow v=2.98\times 10^{-2}\times 124.62\\\Rightarrow v=3.71\ \text{m/s}[/tex]

Tangential speed at the required point is [tex]3.71\ \text{m/s}[/tex]

Radial acceleration is given by

[tex]a=\omega^2r\\\Rightarrow a=124.62^2\times 7.9\times 10^{-2}\\\Rightarrow a=1226.88\approx 1.23\ \text{km/s}^2[/tex]

The radial acceleration is [tex]1.23\ \text{km/s}^2[/tex].

t = Time = 2.06 s

Distance traveled is given by

[tex]d=vt\\\Rightarrow d=\omega rt\\\Rightarrow d=124.62\times 7.9\times 10^{-2}\times 2.06\\\Rightarrow d=20.28\ \text{m}[/tex]

The total distance a point on the rim moves in the required time is [tex]20.28\ \text{m}[/tex].

Answer:

1a)Mass is the amount of matter in the body.

1b)Weight is the measure of the amount of force acting on a mass due to acceleration and gravity.

2a)Mass can never be zero

2b)Weight can be zero if no gravity acts upon an object. like in space

3a) Mass does not change according to location.

3b)Weight varies according to location.

Answer:

(3 ) friction hope this is correct

Answer:

B on EDGE

Explanation:

Answer:

The equation a=F/m or the acceleration is equal to the net force of an object divided by that object's mass, is an equation derived and explained by Sir Issac Newton's second law of motion. Newton's second law of motion states that the force of an object is equal to the mass times the acceleration of that object.

Answer:

Pottasium iodide (KI)

Explanation:

product of this reaction is KI. this product is an ionic compound.

Answer:

When two objects in motion hit each other they experience forces that are equal in magnitude and opposite in direction. This force causes one of the objects to speed up or gain momentum and other to slow down or lose momentum.

Answer:

Hope this helps you out if you could please leave 5 stars or brainiest thank you

Answer:

Sound and light are similar in that both are forms of energy that travel in waves. They both have properties of wavelength, freqency and amplitude. Here are some differences: Sound can only travel through a medium (substance) while light can travel through empty space.

Answer:

Sound and light are similar in that both are forms of energy that travel in waves. They both have properties of wavelength, freqency and amplitude. Here are some differences: Sound can only travel through a medium (substance) while light can travel through empty space.

Explanation:

Hope this helped Mark BRAINLEST

Answer:

A. 13.3

Explanation:

First, we find the velocity of the electron in meters/sec, as follows:

[tex]v = \frac{d}{t}\\[/tex]

v = velocity of electron = ?

d = distance between plates = 2 cm = 0.02 m

t = time elapsed = 1.5 x 10⁻⁸ s

Therefore, using these values in the equation, we get:

[tex]v = \frac{0.02\ m}{1.5\ x\ 10^{-8}\ s}\\\\v = 1333333.33\ m/s[/tex]

Now, we convert this to million m/s:

[tex]v = (1333333.33\ m/s)\frac{1\ million\ m}{100000\ m}\\\\v =13.3\ million\ m/s[/tex]

Therefore, the correct answer is:

A. 13.3

D

Explanation

Given,

Distance covered in 1 lap = 400m

= Distance covered in 2 laps = 400 × 2

=800m

If Jermaine runs 2 whole laps, she comes back to her starting point.

So the answer is 0m

Answer: 4875 N

Explanation:

Given

Stuntman weight is [tex]W=650\ N[/tex]

His center of gravity is located at [tex]x=0.75\ m[/tex] away from pole

If he applies an upwards force at 0.10 m away from the pole

Suppose  F is the applied force

To remain vertical, the torque of weight must be canceled by the vertical force

[tex]\Rightarrow 650\times 0.75-F\times 0.10=0\\\\\Rightarrow 650\times 0.75=F\times 0.10\\\\\Rightarrow F=\dfrac{487.5}{0.10}=4875\ N[/tex]

Answer:

c. root-pry

Explanation:

i did the test

The process by which a seed enters a rock fracture and the expanding roots push to widen the fissures is known as mechanical weathering.

Machine-induced weathering Mechanical weathering, sometimes referred to as physical weathering and disaggregation, causes rocks to break down. Water, whether liquid or solid, is usually present during mechanical weathering. For instance, liquid water may seep through fractures and fissures in rock.

You may get mechanical weathering from

the reduction in pressure produced on by the removal of subsurface rock.

Water freezes and thaws in the granite's crevices.

Salt crystals are developing inside the rock.

cracking brought on the plant roots and exposed by digging animals

The information is ,

Let's say the weathering looks like A.

Now, plants are to blame since a seed that falls into a fracture in a rock and the seed's expanding roots push and widen the original gap

Weathering from mechanical sources and one mechanical weathering mechanism that fractures rocks is the freezing and spreading of ice in rock cracks.

Moreover, mechanical weathering reduces rocks into microscopic fragments, increasing the surface area of the material as a whole.

Hence, the method is mechanical weathering.

Click here for additional information about mechanical weathering.

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(60 W) x (336 hrs) = 20,160 W-hr

That's 20.16 KWh .