Which of the following is a true statement about work?

Answer:

the final velocity of the two blobs after collision is 3.21 m/s.

Explanation:

Given;

mass of first blob, m₁ = 9 kg

mass of the second blob, m₂ = 5 kg

initial velocity of the first blob, u₁ = 5 m/s

initial velocity of the second blob, u₂ = 0

Let the final velocity of the two blobs after collision = v

Apply the principle of conservation linear momentum to determine v;

m₁u₁ + m₂u₂ = v(m₁ + m₂)

9 x 5   +    5 x 0 = v(9 + 5)

45 = 14v

v = 45 / 14

v = 3.21 m/s

Therefore, the final velocity of the two blobs after collision is 3.21 m/s.

Answer:

Explanation:

You want the area of the output piston not the input piston.  The input piston creates a pressure equal to  

55.8 N/0.1 m^2  =  558 N/m^2.  This pressure is transmitted through the hydraulic fluid and applied to the output piston.  The pressure exerted on the output piston is equal to 419 N/Am^2.  Set this equal to the applied pressure and solve for A, the area of the output piston.

419/A = 558 ,  A = 419/558 = 0.751 m^2

Answer:

0.0133 m^2

Explanation:

55.8/419=0.133

0.133*0.100= 0.0133

Hope this helps!

Answer:

a. Net force = 40 Newton.

b. Acceleration = 8m/s²

Explanation:

Given the following data;

Force on postive x-axis = 90N

Force on negative x-axis = 50N

Mass = 5kg

a. To find the net force;

Net force can be defined as the vector sum of all the forces acting on a body or an object i.e the sum of all forces acting simultaneously on a body or an object.

The net force is equal to the difference between the two forces applied because they are acting in opposite directions.

Net force = 90 - 50

Net force = 40N

b. To find the acceleration;

Acceleration = net force/mass

Acceleration = 40/5

Acceleration = 8m/s²

Answer:

Explanation:

7.Conduction

Assuming the pot is cold and the heating element is hot: Heat will be transferred from the element to the pan via conduction because they are in contact with one another.

8.  C The moon

9.  A heat, light and sound energy.

When fireworks explode, chemical energy is transformed into thermal energy, mechanical energy, radiant energy, and sound energy.

10.A 70% light energy, 30% thermal energy

When the flashlight is turned on, the chemical energy is first transformed into electrical energy and then into light energy.

If number 10 is not correct then the answer is  C.

Answer:

only if you take copper

Explanation:

Any electric current has an associated magnetic field, so a current-carrying conductor is an electromagnet, regardless of what material it is made. ... However, using copper alone will not make a strong electromagnet

Answer:

102.04kg

Explanation:

(1000kg*m/s^2)/(9.8 m/s^2)

Answer:

reviewing the statement we can say that it is FALSE

Explanation:

The Doppler effect is the change in the perceived frequency of a sound wave by the RELATIVE MOTION of the source and the observer.

This effect is very useful for finding the speed of an object.

When reviewing the statement we can say that it is FALSE

Answer:

400

Explanation:

can you help me with my question The surface of the Gilded Age was of great prosperity, while the interior was corrupt; the "gilding" or good exterior of the Gilded Age came from which of the following? A. Rebuilding the nation from the left over money from the War B. The technological advancements of the industrial revolution C. The mass movement of people from the country into the cities D. New monuments and buildings built in honor of the war heroes

Answer:

Intertia

Explanation:

Interia is like a property in whichit continues in its existing state of (rest or uniform motion ) in a straight line, unless that state is changed by an external force.

But

Balanced forces is just when two  forces act on an onject       and the net force is zero. Inshort it doesnt hve any affect on the object.

Unbalanced forces is just when two  forces act on an onject       and the net force is NOT zero. Inshort it does hve any affect on the object.

I hope im right

Answer:

F_net = 1.125 10⁻⁶ N

positive direction of the x axis

Explanation:

The electric force is given by Coulomb's law

           F =[tex]k \frac{q_1q_2}{r_{12}^2}[/tex]

also used  charge of equal sign repel each other.

We appease this information to our problems

the charge q₁ is positive and the charge q₃ is positive for which the force is repulsive; ; a charge q₂ is negative so the force is attractive.

If we apply that the forces are vectors

            F_net = - F₁₃ + F₂₃

           F_net = [tex]-k \frac{q_1q_3}{r_{13}^2} + k \frac{q_2q_3}{r_{23}^2}[/tex]

            F_net = k q₃ ( [tex]- \frac{q_1}{r_{13}^2} + \frac{q_2}{r_{23}^2}[/tex] )

let's look for the distances

          r₁₃ = 2-0 = 2 cm = 2 10⁻² m

          r₂₃ = 4-0 = 4 cm = 4 10⁻² m

let's substitute

            F_net = 9 10⁹ 5 10⁻⁹ ( [tex]- \frac{1 \ 10^{-9}}{2 \ 10^{-2}} + \frac{3 \ 10^{-9}}{4 \ 10^{-2}}[/tex])

            F_net = 45 (- 0.5 10⁻⁷ + 0.75 10⁻⁷)

            F_net = 1.125 10⁻⁶ N

the positive sign indicates that the outside has a positive direction of the x axis, that is, it is to the right

Answer:

1=900j

2=140j

3=5m

Explanation:

1,

work=force×displacement

w=450×2

w=900j

2,

w=f×s

w=70×2

w=140j

3,

w=f×s

200=40×s

200/40=s

s=5m

Answer:

the energy absorbed is 4.477 x 10⁶ J

Explanation:

mass of the liquid, m = 13 kg

initial temperature of the liquid, t₁ = 18 ⁰C

final temperature of the liquid, t₂ = 100 ⁰C

specific heat capacity of water, c = 4,200 J/kg⁰C

The energy absorbed is calculated as;

H = mcΔt

H = mc(t₂ - t₁)

H = 13 x 4,200(100 - 18)

H = 4.477 x 10⁶ J

Therefore, the energy absorbed is 4.477 x 10⁶ J

Answer:

Jumping on a trampoline.

Answer:

Explanation:

Answer:

4

Explanation:

Answer: in an electrical circuit, electricity flows one direction: out of the positive terminal of a battery and back into the negative terminal.

Explanation:

Answer:

one direction: out of the positive terminal of a battery and back into the negative terminal.

Explanation:

Electrical engineers say that, in an electrical circuit, electricity flows one direction: out of the positive terminal of a battery and back into the negative terminal. Electronic technicians say that electricity flows the other direction: out of the negative terminal of a battery and back into the positive terminal.

Answer:

14.715 m

Explanation:

Assume that the acceleration due to gravity is 9.81 m/s^2 downwards, take downwards as positive

First second:

v = u + at

v = 9.81 m/s

Second second:

s = ut + (1/2)at^2

s = 9.81(1) + (1/2)(9.81)(1)^2

s = 14.715 m

Answer:

The machine used is called a squaring shear, power shear, or guillotine.

Explanation:

Answer:

sheep shearing.

i hope this helps

Answer:

If your body did not digest enough food, you would not have the energy to exercise. Food is like fuel for the body.

Explanation:

Answer:

A just took the quiz on edge

Explanation:

In the supply curve, when the price of a good increases, A. The quantity of goods that are produced increases.

Supply simply means the quantity of goods and services that a supplier is willing to sell at a particular place, price and time.

In this case, when there's an increase in the price of goods, it should be noted that producers will supply more of the goods. This is done in order to generate more revenue.

Learn more about supply on:

https://brainly.com/question/11898489

Answer:

F = 3.15 N

Explanation:

Given electric charge, q = 6.3 μC

The magnitude of electric field, [tex]E=5\times 10^5\ N/C[/tex]

We need to find the electric force on the charge due to the electric field. The electric force is given by :

F = qE

Putting all the values,

[tex]F=6.3\times 10^{-6}\times 5\times 10^5\\\\F=3.15\ N[/tex]

So, the required force on the charge is 3.15 N.

Explanation:

none of the answers choices...

it should have an anion and cation combine to make octet rule

Answer:

D) helium (He) and hydrogen (H)

Explanation:

got it right on time 4 learning

Answer: A Neutron.

I know this is correct. Thank's and yw :3