Would you rather be hit by a 1-kg mass traveling at 10m/s or a 2-kg mass traveling at 5m/s? Why?

Support your answer.​

Answer:

gravity

Explanation:

Answer:

Its indirectly Proportional

Explanation:

Explanation:

C. neutron.

it does not contain ionizing characteristics.

hope it helps. :)

Answer:

36.36 m/s

Explanation:

From the question,

Applying the law of conservation of momentum.

Total momentum before collision = Total momentum after collision .

mu+m'u' = V(m+m')................ Equation 1

Where m = mass of the rocket, m' = mass of the wood, u = initial velocity of the rock, u' = initial velocity of the wood, V = Final velocity after collision

But, the wood was initially at rest

Therefore, u' = 0 m/s

mu = V(m+m')

make V the subject of the equation

V = mu/(m+m')................. Equation 2

Given: m = 0.5 kg, u = 400 m/s, m' = 50 kg

Substitute these values into equation 2

V = (0.5×400)/(0.5+50)

V = 200/5.5

V = 36.36 m/s

Answer:

Higher moments of inertia indicate that more force has to be applied in order to cause a rotation whereas lower moments of inertia means that only low forces are necessary. Masses that are further away form the axis of rotation have the greatest moment of inertia.

Answer:

(a) The time the ball stays in the air is approximately 4.66 seconds

(b) The distance from the cannon at which the ball will hit the ground is approximately 83.18 meters

(c) The maximum altitude of the ball is approximately 26.62 m

Explanation:

The given parameters of the question are;

The initial velocity at which a baseball cannon fires balls, u = 29 m/s

The angle at which the cannon is tilted, θ = 52°

(a) The time duration the ball stays in the air is given by the time of flight of the projected ball as follows;

[tex]2 \cdot t = \dfrac{2 \cdot u \cdot sin (\theta)}{g}[/tex]

Where;

t = The time it takes the baseball to reach maximum height

2·t = The total time of flight = The time the ball stays in the air

θ = The angle at which the ball is tilted = 52°

g = The acceleration due to gravity ≈ 9.81 m/s²

u = The initial velocity = 29 m/s

Therefore, we have;

[tex]2 \cdot t = \dfrac{2 \times 29 \ m/s\times sin (52^{\circ})}{9.81 \ m/s^2} \approx 4.66 \ s[/tex]

The time the ball stays in the air, 2·t ≈ 4.66 seconds

(b) The distance from the cannon at which the ball will hit the ground is given by the horizontal range, 'R', of the projectile as follows;

[tex]Horizontal \ range, R = \dfrac{u^2 \cdot sin(2 \cdot \theta) }{g}[/tex]

∴ The distance from the cannon at which the ball will hit the ground = R

[tex]Horizontal \ range, R = \dfrac{(29 \ (m/s))^2 \cdot sin(2 \times 52^{\circ}) }{9.81 \ m/s^2} \approx 83.18 \, m[/tex]

The distance from the cannon at which the ball will hit the ground = R ≈ 83.18 meters

(c) The maximum altitude of the ball is equal to the maximum height reached by the ball, H, which is given as follows;

[tex]H = \dfrac{u^2 \cdot sin^2 (\theta)}{2 \cdot g}[/tex]

Therefore, we have;

[tex]H = \dfrac{(29 \ m/s)^2 \times sin^2 (52^{\circ})}{2 \times 9.81 \ m/s^2} \approx 26.62 \ m[/tex]

The maximum altitude of the ball ≈ 26.62 m

Answer:

12 kgm²

Explanation:

here angular acceleration = 10rad/sec²

torque= 120Nm

moment of inertia=?

we know,

torque= angular acceleration× moment of Inertia

or, moment of inertia = torque/angular acceleration

= 120/10

= 12kgm²

Answer:

With F = MA Its should take 500 Newtons

Explanation:

F = MA

Answer:

Explanation:Hertz is used to measure frequency, but decibel is used to measure intensity level.

Answer:

1. Speed

Explanation:

"how far an object moves in a certain amount of time"

"how far an object moves"- distance

"In a " - over

"certain amount of time" - time

Distance over time is speed.

The speed of an object is the distance the object travels in one unit of time.

Hope I Helped, Feel free to ask any questions to clarify :)

Have great day!

           -Aadi x

Answer:

Sea fish

Explanation:

Sea fish doesn't breath through their gills but dissolved oxygen in water through gills

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Answer: Something that's vibrating, and you also need medium for those vibrations to start in.

I hope this helped!

<!> Brainliest is appreciated! <!>

- Zack Slocum

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Answer:

E

Explanation:

Answer:

yes

Explanation:

because -20m/s means decrease in acceleration and Time , why 10m/s means increase in acceleration and Time

Answer:

a tendency to do nothing or to remain unchanged.

Explanation:

Answer:

Inertia: The resistance an object has to a change in its state of motion.

Explanation:

Hope it helps....

Have a great day!!

Answer:

1. 61 neutrons  - Promethium - Pm

2. 126 neutrons  - Unbihexium - Ubh

3. 2 neutrons  - Helium - He

4. 32 neutrons  - Germanium - Ge

5. 110 neutrons  - Tungsten - W

6. 45 neutrons  - Bromine - Br

7. 121 neutrons  - Mercury - Hg

8. 146 neutrons - Uranium - U

Explanation:

I Don't know how to explain, but I hope that this helped You.

Answer:

Unbalanced forces change the motion of an object. If an object is at rest and an unbalanced force pushes or pulls the object, it will move. Unbalanced forces can also change the speed or direction of an object that is already in motion.

Answer:

[tex]v = 14.78m/s[/tex]

Explanation:

Given

[tex]KE = 150J[/tex]

[tex]p = 20.3kgm/s[/tex]

Required

Determine the object's speed

Kinetic Energy is calculated as:

[tex]KE = \frac{1}{2}mv^2[/tex]

Make m the subject

[tex]m = \frac{2KE}{v^2}[/tex]

Momentum is calculated as:

[tex]p = mv[/tex]

Make m the subject

[tex]m = \frac{p}{v}[/tex]

So, we have:

[tex]m = \frac{p}{v}[/tex] and [tex]m = \frac{2KE}{v^2}[/tex]

Equate both expressions: [tex]m = m[/tex]

[tex]\frac{2KE}{v^2} = \frac{p}{v}[/tex]

Multiply both sides by v

[tex]v * \frac{2KE}{v^2} = \frac{p}{v}*v[/tex]

[tex]\frac{2KE}{v} = p[/tex]

Make v the subject

[tex]v = \frac{2KE}{p}[/tex]

Substitute [tex]KE = 150J[/tex] and [tex]p = 20.3kgm/s[/tex]

[tex]v = \frac{2 * 150}{20.3}[/tex]

[tex]v = \frac{300}{20.3}[/tex]

[tex]v = 14.78m/s[/tex]

Isolate the variable by dividing each side by factors that don't contain the variable.

m

=

32.021

¯

3

s

Answer:

127.12 m/s

Explanation:

From the question,

Kinetic energy of the bowling ball = Kinetic energy of the ping pong ball

1/2mv² = 1/2m'v'²

Where m = mass of the bowling ball, v = velocity of the bowling ball, m' = mass of the ping pong ball v' = velocity of the ping pong ball

make v' the subject of the equation

v' = √(mv²/m')................ Equation 2

Given: m = 7.0 kg, v = 2.45 m/s, m' = 2.60 g = 0.0026 kg

Subtitute into equation 2

v' = √[(7×2.45²)/0.0026]

v' = √16160.57

v' = 127.12 m/s

Answer:

Explanation:

It's the same. Wattage is E*I. It doesn't matter what the values are in the primary or secondary as long as the multiply out to the same amount.

For example

e = 110 volts

i = 3 amperes.

is = secondary voltage = 10 amperes.

es = ?

110 * 3 = 10 * x          Divide both sides by 10

11 * 3 = x

x = 33 volts.

110 * 3  = 330

10 33 = 330

Answer:

86.5 m

Explanation:

[tex]s = ut + \frac{1}{2} at {}^{2} \\ s = (0)(4.2) + \frac{1}{2} (9.81)(4.2) {}^{2} \\ s = 86.5m [/tex]

Answer:

86.5 m

Explanation:

Answer:

B and C is the Answer

Follow me please

Mark brainliest

Answer:

m1 v1 + m2 v2 = m1 V1 + m2 V2       conservation of momentum

m1 = 3    m2 = 6

v2 = -4.6

V1 = -4.2

V2 = -1.5

v1 = (m1 V1 + m2 V2 - m2 v2) / m1

v1 = (3 * -4.2 + 6 * -1.5 - 6 * -4.6) / 3

v1 = (-12.6 - 9 + 27.6) / 3 = 2  initial velocity of 3 kg ball

Check:

3 * 2 + 6 * -4.6 = -21.6

3 * -4.2 + 6 -1.5 = -21.6

Answer:

1280Nm

Explanation:

torque= I×alpha(angular acceleration)

so Angular acceleration is found by the following process.

Answer:

   F = - 6.95 10⁻² j^  N

Explanation:

The force on a wire carrying current through a magnetic field is

         F = i L x B

The bold letters indicate vectors, as the wire is in the positive Z axis and the magnetic field in the negative x axis, the force must be in the negative y axis

the force module

            F = i LB

that there is 90º between the two vectors and the sin 90 = 1

let's calculate

            F = 4.9  3.3 10⁻² 0.43

            F = 6.95 10⁻² N

the force vector is

           F = - 6.95 10⁻² j^  N

Answer:

heyy tell me ur yo u tube ch annel name I'll subscribe it and how many sub scriber u have friend

Explanation:

and are u from Ireland?

Answer:

The ampere, symbol A, is the SI unit of electric current. It is defined by taking the fixed numerical value of the elementary charge e to be 1.602 176 634 x 10-19 when expressed in the unit C, which is equal to A s, where the second is defined in terms of ΔνCs.

the device used to measure current in a circuit is ammeter

Answer:

Option B

Explanation:

As we know phase difference is equal to

[tex]\psi = \frac{2\pi }{\lambda} * \Delta[/tex] ----Eq (1)

where

[tex]\Delta[/tex] is the physical difference between two points = 0.025 m

[tex]\lambda[/tex] is equal to [tex]\frac{v}{f}[/tex]

[tex]\lambda = \frac{20}{100} = 0.2[/tex]

Substituting the given values in above equation, we get -

[tex]\psi[/tex] =

[tex]\frac{2\pi }{0.2} *0.025\\\frac{\pi }{4}[/tex]

Hence, option B is correct