If a bowling ball is moving with acceleration of 15 m/s2 and has a mass of 10kg what is the force of the ball as it knocks down pins in a bowling alley?

Answer:

25 ohms

Explanation:

Hi there!

Ohm's law states that [tex]V=IR[/tex] where V is voltage, I is current and R is resistance.

Plug the given information into Ohm's law (V=50, I=2) and solve for R

[tex]V=IR\\50=2R[/tex]

Divide both sides by 2 to isolate R

[tex]\frac{50}{2}= \frac{2R}{2} \\25=R[/tex]

Therefore, there are 25 ohms of resistance present in this circuit.

I hope this helps!

Answer:

A,B,C,D,F,G

Explanation:

Edge 2021

The atoms, subatomic particles, particles that are 10^-9m, microtechnology systems, neutrons and particles that are 10^-3m  will displays the effects of quantum mechanics.

Quantum Mechanics is the branch of mechanics deals with the mathematical description of the motion and interaction of subatomic particles, incorporating the concepts of quantization of energy, wave–particle duality, the uncertainty principle, and the correspondence principle is Quantum Mechanics.

It is theory says at subatomic level, energy exists in discrete levels as "quanta" and particles behave as waves.

A Subatomic particles are the particle that are present inside an atom. These particles are electrons, protons, and neutrons.

Thus, atoms, subatomic particles, particles that are 10^-9m, microtechnology systems, neutrons and particles that are 10^-3m  will displays the effects of quantum mechanics.

Learn more about Quantum Mechanics;

brainly.com/question/7221719

#SPJ2

Answer:

The answer is B.

Explanation:

مافيني اشرح

Answer:

c. -288 J

Explanation:

Given;

mass of the block, m = 4 kg

velocity of the block, v = 12 m/s

deceleration of the block, a = 3 m/s²

Apply work-energy theorem;

work done in stopping the block = kinetic energy of the block

W = ¹/₂mv²

where;

W is the magnitude of the work done by the force

W = ¹/₂ x 4 x 12²

W = 288 J

Since the work done by the force is in opposite direction, then the value of the work done by the force is -288 J

Answer:

6.4 cm.

Explanation:

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

Coefficient of linear expansion (α) = 25×10¯⁶ / °C

Original length (L) = 4850 cm

Initial temperature (T₁) = 2 °C

Final temperature (T₂) = 55 °C

Change in length (ΔL) =?

The change in the length of the wire can be obtained as follow:

α = ΔL / L(T₂ – T₁)

25×10¯⁶ = ΔL / 4850(55 – 2)

25×10¯⁶ = ΔL / 4850 × 53

25×10¯⁶ = ΔL / 257050

Cross multiply

ΔL = 25×10¯⁶ × 257050

ΔL = 6.4 cm

Therefore, the change in the length of the wire is 6.4 cm

The devices don't "draw" 120v. The 120v comes to your house from the power company. They decide it should be 120v and that's what they send you. It's hypothetically technically possible for you to change that, but if you try it, you'll definitely burn the house down.

The total resistance of those two devices in parallel is 6 and 2/3 ohms. That doesn't depend on what they're plugged into. It would still be 6 and 2/3 ohms if they were connected in parallel, wrapped in tissue, sealed in a jar of chicken soup and stored in a box on a high shelf.

But since they ARE plugged into 120v, they draw 18 Amperes from the socket, and they turn all of that electrical energy into 2160 watts of heat. That's about the same as a good size toaster oven, and you have to figure out a way to get rid of all that heat before you burn the house down.

Answer:

electromagnet

Explanation:

Magnet

.....

[tex]\huge{\textbf{\textsf{{\color{navy}{An}}{\purple{sw}}{\pink{er}} {\color{pink}{:}}}}}[/tex]

C. A nebula.

Answer:

a nebular

hope it up

Explanation:

wirks

Force = mass × acceleration

9 = 65 x acceleration

acceleration= 9/65 = 0.318 m/s2

Acceleration Tecle, with a mass of 65.0 kg, is standing on an ice-skating rink. His friend applies a force of 9.0 N to him.  Tecle's resulting acceleration is  0.318 m/s²

The rate at which an item changes its velocity is known as acceleration, a vector quantity. If an object's velocity is changing, it is acceleration.

The net acceleration that objects get as a result of the combined action of gravity and centrifugal force is known as the Earth's gravity, or g. It is a vector quantity whose strength or magnitude is determined by the norm and whose direction correlates with a plumb bob.

Force = mass × acceleration

9 = 65 x acceleration

acceleration= 9/65 = 0.318 m/s²

Acceleration Tecle, with a mass of 65.0 kg, is standing on an ice-skating rink. His friend applies a force of 9.0 N to him.  Tecle's resulting acceleration is  0.318 m/s²

To learn more about acceleration refer to the link:

brainly.com/question/12550364

#SPJ2

Answer: I think it’s Global for the 1st one

And free trade for the 2nd one

Explanation:

The correct answer is: "After World War II, political leaders from various countries discussed ways to strengthen individual economies." They began promoting economic policies to boost production and exports.

After World War II, many countries were left with weakened economies and infrastructure, and there was a need for economic recovery and growth. To achieve this, political leaders from different countries came together to discuss ways to strengthen their individual economies and also promote international economic cooperation. One of the ways they did this was by promoting economic policies that aimed to boost production and exports. This involved policies that encouraged businesses to increase their output and create more jobs, as well as policies that made it easier for countries to trade with each other.

Hence, after World War II, political leaders from various countries discussed ways to strengthen their individual economies. They began promoting economic policies to boost production and exports.

Learn more about World War II's aftermath here.

https://brainly.com/question/27327667

#SPJ5

Answer:

b. 600,000 J

Explanation:

Applying the law of conservation of energy,

The thermal energy created = Kinetic energy of the suv.

Q' = 1/2(mv²)............... Equation 1

Where Q' = Thermal energy, m = mass of the suv, v = velocity of the suv.

From the question,

Given: m = 3000 kg, v = 20 m/s

Substitute these values into equation 1

Q' = 1/2(3000×20²)

Q' = 600000 J

Hence the right option is b. 600,000 J

Answer:

If the frequency of a wave is doubled, what happens to its wavelength? If the frequency is doubled, the wavelength is only half as long. 3. ... As the frequency slows down, the wavelength increases.

Explanation:

Answer:

The answer is C the ball is not in a closed system and experience an impulse.

Explanation:

Answer:

Explanation:

The magnitude of the change in momentum of block A is equal and opposite the magnitude of the change in momentum of block B.

According to law of conservation of momentum , there should not be any change in the  momentum in the system  .The system consists of A and B .  So if some change in momentum has occurred in A  , the other must have equal and opposite change in momentum so that they get cancel out and net change in momentum of system is zero.

Solution :

All of these technologies uses the technologies of  radio waves, including the low [tex]$\text{frequency}$[/tex] microwaves.

The microwave ovens emits in the same frequency band as that some [tex]$\text{wireless}$[/tex] Internet devices.

[tex]$\text{The radiation}$[/tex] that is emitted by the wireless Internet devices having the [tex]$\text{shortest wavelength}$[/tex] of all the technologies are listed.

All these technologies emits waves with a wavelength in the range [tex]$0.10 \ m$[/tex] to [tex]$10 \ m$[/tex].

The [tex]$\text{earth absorbs}$[/tex] the visible light and also [tex]$\text{emits radiation }$[/tex] with a longer [tex]$\text{wavelength}$[/tex]. The earth then absorbs [tex]$\text{visible light}$[/tex] as well as emits the [tex]$\text{radiation}$[/tex] with a [tex]$\text{lower frequency}$[/tex].

Explanation:

Given that,

The frequency of oscillation, f = 0.5 Hz

(a) Let the length of the pendulum string is l. So,

[tex]T=2\pi \sqrt{\dfrac{l}{g}}[/tex]

T is time period, T = 1/f

So,

[tex]l=\dfrac{(\dfrac{1}{f})^2g}{4\pi ^2}\\\\l=\dfrac{(\dfrac{1}{0.5})^2\times 9.8}{4\times 3.14 ^2}\\\\l=0.993\ m[/tex]

(b) When the elevator starts to accelerate upwards, new acceleration is a+g.  If accelerating upward, the value of g has increased, because of inertia. So it will feel heavier and the period will decrease.

Answer:

2.66 cm

Explanation:

Apparent depth ( d1 ) = 2.0 cm

d2 = ?

Determine how far below top surface the medallion would appear

lets express The two scenarios

Case 1 : apparent depth as d1 = dactual (Nair/ nplastic) . ( eyes in the air )

Case 2 : Apparent depth as d2 = dactual (Nwater / nplastic) ( eyes in water )

Final How far below top surface will the medallion appear

d2 = d1 * Nwater / Nair

    = ( 2 * 1.33) / 1  = 2.66 cm

note :  Nwater = 1.33,  , Nair = 1 ( missing values in your question )

Answer:i

Explanation:

Answer:

8.24 m/s²

Explanation:

Applying,

T = 2π√(L/g).................... Equation 1

Where T = period of the pendulum, L = Length of the pendulum, g = acceleration due to gravity of the planet, π = pi

From the question, we were asked to  find the value of g,

There we make g the subject of the equation

g = 4π²L/T²..................... Equation 2

Given: L= 48 cm = 0.48 m, T = (141/93) s = 1.516 s

Constant: π = 3.14

Substitute these values into equation 2

g = 4(3.14²)(0.48)/(1.516²)

g = 18.93/2.298

g = 8.24 m/s².

Hence the acceleration of the planet is 8.24 m/s²

Answer: D

Explanation: I just took the test

Answer:    Both exhibit the Doppler effect, but radar uses radio, and the siren' uses sound waves.

Explanation:   I took the test

Answer:

9000

Explanation:

f=ma

f= force

m=mass

a=acceleration

f=ma

4500×2.0

9000N

Answer:

To establish this relationship we must examine the potentials that these forces create. The electrical potential is described by

        Ve = k q / r

The potential for strong nuclear force is

       Vn (r) = - gs / 4pir exp (-mrc / h)

Where gs is the stacking constant and r the distance between the nucleons,

We can compare these potentials where the force is derived from the relationship

       E = -dU / dr

       F = q E

Explanation:

Answer:

t = 3.924 s

Explanation:

First, we will calculate the amount of work required to get the astronaut back to the capsule:

[tex]W = Fd\\[/tex]

where,

W = work required = ?

F = Force = Weight = mg = (80 kg)(9.81\ m/s²) = 784.8 N

d = distance = 5 m

Therefore,

[tex]W = (784.8\ N)(5\ m)\\W = 3924 J[/tex]

Now the time can be calculated as:

[tex]Power = \frac{W}{t}\\t = \frac{W}{Power}\\\\t = \frac{3924\ J}{1000\ W}\\\\[/tex]

t = 3.924 s

Answer:

B. 10.08

C.2448

Explanation:

Answer and Explanation:

There would be a net force of 40n going left, because 20n going right would cancel out the 20n in the 60n going left, making 40n go left.

#teamtrees #PAW (Plant And Water)

Answer:

Explanation:

1/v - 1/u = 1/f

given, f = 0.3 m, u = -0.4m

so, 1/v - 1/-0.4 = 1/0.3

or, 1/v = 1/0.3 - 1/0.4 = 1/1.2

v = 1.2 m

now, differentiating 1/v - 1/u = 1/f with respect to t,

-1/v² dv/dt + 1/u² du/dt = 0

or, dv/dt = (v/u)² du/dt

putting, du/dt = 0.01 m/s , v = 1.2 m and u = -0.4 m

so, dv/dt = (1.2/-0.4)² × 0.01

= 0.09 m/s

hence, speed of image with respect to lens is 0.09 m/s .

from formula of magnification

magnification, m = v/u

differentiating with respect to time both sides,

dm/dt = (u dv/dt - vdu/dt)/u²

= (-0.4 × 0.09 - 1.2 × 0.01)/(-0.4)²

= (-0.036 - 0.012)/0.16

= -0.048/0.16

= -0.3 m/s

hence, magnitude of rate of change of lateral magnification is 0.3 m/s

Answer:

D. The particles move more quickly and begin to move from place to place.

Explanation:

Answer:

Aerobic exercise is an important component of a healthy lifestyle. Find out more about aerobic equipment that can help keep you fit.

Aerobic equipment simulates the movements of aerobic exercises such as walking, jogging, rowing, skiing, hiking, biking, and climbing. These activities rhythmically and continuously move your large muscles — the key to getting your heart beating fast enough and long enough for aerobic conditioning.