Pls help me find the electrons of these 4 questions asap.​

Answer:

momentum= mass x velocity

= 11 x 1200 =13200kgm/s

Answer:

The unit of speed is m/s.

Answer:

c

Explanation:

365.25 or 366.25 in a leap year

Answer:

Convex lenses concentrates the light energy to one spot on the paper so that the heat energy accumulates on that one small spot of paper. ... As the heat increases, combustion will occur when the spot becomes too hot and the paper will burn.

Explanation:

Hope it helps!

If you dont mind can you please mark me as brainlest?

Answer:troposphere, stratosphere, mesosphere and thermosphere and exosphere

Explanation:

Answer:

I don't rlly know anyone in harry Potter so I simp for........MYSELF :)

Answer:

Either Draco Malfoy or Harry Potter

Explanation:

UvU

Answer:

A) a = 73.304 rad/s²

B) Δθ = 3665.2 rad

Explanation:

A) From Newton's first equation of motion, we can say that;

a = (ω - ω_o)/t. We are given that the centrifuge spins at a maximum rate of 7000rpm.

Let's convert to rad/s = 7000 × 2π/60 = 733.04 rad/s

Thus change in angular velocity = (ω - ω_o) = 733.04 - 0 = 733.04 rad/s

We are given; t = 10 s

Thus;

a = 733.04/10

a = 73.304 rad/s²

B) From Newton's third equation of motion, we can say that;

ω² = ω_o² + 2aΔθ

Where Δθ is angular displacement

Making Δθ the subject;

Δθ = (ω² - ω_o²)/2a

At this point, ω = 0 rad/s while ω_o = 733.04 rad/s

Thus;

Δθ = (0² - 733.04²)/(2 × 73.304)

Δθ = -537347.6416/146.608

Δθ = - 3665.2 rad

We will take the absolute value.

Thus, Δθ = 3665.2 rad

I think ....... the answer will be ......

like a theory

Answer:

623.6N

Explanation:

There are 2.2 pounds in one kilogram, so you must divide 140 lb by 2.2 to convert the units to kilograms.

140/2.2 = 63.6 kg

The gravitational force also known as weight would equal mass times acceleration due to gravity.

Fg = (63.6 kg)(9.8 m/s^2) = 623.6N

Answer:

Part A

The distance from the start point the goose travels is approximately 84.96 miles

Part B

The direction the goose travel is approximately 71° Northeast

Explanation:

Part A

The distances the goose flies is given as follows;

The distance directly 45 degrees southeast the goose travels, AB = 55 miles

The distance Northeast the goose travels, BC = 75 miles

The angle Northeast the goose travels = 35°

From the attached drawing of the path the goose travels, we have, by cosine rule, the following relation;

a² = b² + c² - 2·b·c·cos(A)

Therefore, we have;

The length of side [tex]\overline{AC}[/tex]² = 55² + 75² - 2 × 55 × 75 × cos(80°) = 7217.40253425

[tex]\overline{AC}[/tex] = √(7217.40253425) ≈ 84.9552972701

The distance from the start point the goose travels ≈ 84.96 miles

Part B

By sine rule, we have;

75/(sin(A)) = [tex]\overline{AC}[/tex]/(sin(80°))

sin(A) = (75/[tex]\overline{AC}[/tex]) × (sin(80°)

∴ sin(A) =  (75/84.9552972701) × (sin(80°) = 0.8694052016

∠A = arcsin(0.8694052016) = 60.3895991264° ≈ 60.4°

The direction the goose travel = 180 - 64 - 45 = 71°

∴ The direction the goose travel =≈ 71° Northeast

Answer:

the strength of the electric field

Answer:

0.25 m/s squared

Explanation:

Mass of the body (m)= 24kg

Applied force on the body(F)= 6N

Acceleration of the body (a)= ?

Solution

F = ma

a = F/m

a = 6N/24kg

a = 0.25m/s^2

Answer: The acceleration of the body is 0.25m/s^2

I hope this helps

Answer:

[tex]\boxed {\boxed {\sf a=\frac {1}{3} \ m/s^2}}[/tex]

Explanation:

Force is the product of mass and acceleration.

[tex]F=ma[/tex]

The mass is 24 kilograms and the force is 8 Newtons. Let's convert the Newtons to make the problem easier.

Substitute the known values into the formula.

[tex]8 \ kg*m/s^2= (24 \ kg )*a[/tex]

Since we are solving for a, we must isolate the variable. It is being multiplied and the inverse of multiplication is division. Divide both sides by 24 kilograms.

[tex]\frac {8 \ kg*m/s^2}{24 \ kg}= \frac{(24 \ kg )*a}{24 \ kg}[/tex]

The kilograms will cancel, hence our earlier unit conversion.

[tex]\frac {8 \ m/s^2}{24 }= a[/tex]

[tex]\frac {1}{3} \ m/s^2=a[/tex]

The acceleration is 1/3 meter per square second.

Answer:

Momentum is equal to mass for velocity (p1=mv)

But momentum is also equal to Force for time of impact (p1=Ft). Hence the impact force is inversely proportional to the fall time and directly proportional to the mass and fall velocity : F=mv/t^2 or F=p1/t

If he slows down, v diminishes and F diminishes

Hence correct Answer is C

Answer:

Explanation:

a). Vertical component of vector B = Bsin(45)

                                                     = 40sin(45°)

                                                     = 28.28 units

Horizontal component of vector B = Bcos(45°)

                                                         = 40cos(45°)

                                                         = 28.28 units

Vertical component of vector C = Csin(45°)

                                                     = 30sin(45°)

                                                     = 21.21 units

Horizontal component of vector C = Ccos(45°)

                                                         = 30cos(45°)

                                                         = 21.21 units

Vertical forces = A + Bsin(45°) - Csin(45°)

                       = 20 + 28.28 - 21.21

                       = 27.07

Horizontal forces = Bcos(45°) + Ccos(45°)

                             = 28.28 + 21.21

                             = 49.49 units

b). Magnitude of resultant force = [tex]\sqrt{(27.07)^2+(49.49)^2}[/tex]

                                                = [tex]\sqrt{3182.045}[/tex]

                                                = 56.41 units

c). Direction of the resultant force → Along vector B (at an angle of 45° from the horizontal line)

Answer:

B

Explanation:

Answer:

[tex]\boxed {\boxed {\sf 8 \ m/s}}[/tex]

Explanation:

Speed is equal to distance over time.

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

The distance is 400 meters and the time is 50 seconds.

[tex]d= 400 \ m \\t= 50 \ s[/tex]

Substitute the values into the formula.

[tex]s=\frac { 400 \ m }{ 50 \ s}[/tex]

Divide.

[tex]s= 8 \ m/s[/tex]

The speed of the car is 8 meters per second.

Answer:

6 m/s

Explanation:

p=mv

p=3 kg.m/s

m=0.5 kg

rearrange and substitute to find v:

(3)=(0.5)v

v=3/0.5

v=6 m/s

Answer:

Angle Angle Similarity Postulate

Explanation:

Answer:

A

Explanation:

if you knock down all the pin with the first ball it is called strike

Answer:

KE=1/2mv*

Explanation:

write the numbers inorder to the symbols

Ans use this formula to solve the problem

Answer:

A) 3.39 seconds

Explanation:

We can find the time it takes the arrow to hit the ground by using a constant acceleration equation.

Let's make the positive direction upwards and the negative direction downwards. Let's list out the relevant variables:

Find a constant acceleration equation that contains these four variables.

Substitute known values into the formula and solve for t.

Use the quadratic formula to continue solving for t.

From this, when we add the discriminant we get -12.04664168. When we subtract the discriminant we get 3.38819129.  

Since time cannot be negative, the time it takes for the arrow to hit the ground must be 3.39 seconds.

Answer:V^2=U^2+2gSIN45S

60^2=2asin45x200

3600=400sin45(a)

3600=282•84a

a=3600/282•84

a=12m/s^2

S=ut+0•5gt^2

200=0•5(12)t^2

200=6t^2

t^2=200/6

t^2=33.33

t=5.77s

Explanation:

Answer:

Solution given:

force=20N

distance travelled=6m

work done=force *displacement=20*6=120joule

Work done=120joule.

Work done=Force×Displacement

[tex]\\ \rm\longmapsto Work\:done=20(6)[/tex]

[tex]\\ \rm\longmapsto Work\:done=120J[/tex]

Answer:

Potential Energy to Kenetic Energy

Explanation:

When holding a ball in the air, the ball has potential energy. Once you drop the ball, the ball gains Kenetic Energy

Answer:

5 Components of Physical Fitness

Cardiovascular Endurance.

Muscular Strength.

Muscular endurance.

Flexibility.

Body Composition.