The free body diagram below represents a balloon released from a student's hand so that the air can escape.
Based on this diagram, the balloon must be....
A. Accelerating down
B.moving at a constant speed,not accelerating
C.accelerating left
Stationary, not moving at all
D.accelerating to the right
E.accelerating up

Answer:

A.

Explanation:

hope it help,tnx sa points

Answer:

-2

Explanation:

The points are (0, 3) and (3, -3)

If you subtract 3-(-3) you get 6

If you subtract 0-3 you get -3

6/-3 is equal to -2

Answer:

alcohol thermometer is preferred for a very cold region. Alcohol thermometer is preferred for a very cold region because its freezing point of alcohol is - 117°C. So, it can measure the temperature of the very cold region.

Answer:

10

Explanation:

1*2+2+1+5=10

1x2+2+1+5=10

The equilibrium condition allows finding the result for the tensions of the cables that support the block are:

       T₁ = 245.1 N and T₂ = 263.1 N

Newton's second law establishes a relationship between the net force, the mass and the acceleration of the bodies, in the special case that the acceleration is zero is called the equilibrium condition.

             ∑ F = 0

Where F is the force.

A free body diagram is a diagram of the forces without the details of the bodies, in the attachment we can see a free body diagram of the system.

Let's write the equilibrium condition for each axis.

x-axis

             T₂ₓ - T₁ₓ = 0

             T₂ₓ = T₁ₓ

y-axis  

         [tex]T_{1y} + T_{2y} - W =0[/tex]  

We use trigonometry to find the components of stress.

         cos 17 = [tex]\frac{T_{1x}}{T_1}[/tex]  

         sin17 = [tex]\frac{T_{1y}}{T_1y}[/tex]

         T₁ₓ = T₁ cos 17

         [tex]T_1_y[/tex]  = T₁ sin 17

         cos 27 = [tex]\frac{T_2_x}{T_2}[/tex]  

         sin27 = [tex]\frac{T_2_y}{T_2}[/tex]

         T₂ₓ = T₂ cos 27

         [tex]T_{2y}[/tex] = T₂ sin 27

We substitute.

        T₂ cos 27 = T₁ cos 17

        T₂ sin27 + T₁ sin17 = W

We solve the system.

        [tex]T_1 \frac{cos 17 \ sin 27}{cos 27} + T_1 sin 17 = m g \\T_1 ( tan 27 cos 17 + sin 17) = 19.5 \ 9.8[/tex]

        T₁ (0.7796) = 191.1

        T₁ = 245.1 N

We look for the T₂ tension.

        T₂ =  [tex]T_1 \ \frac{cos 17 }{cos 27}[/tex]  

        T₂ = 245.1  [tex]\frac{cos 17}{ cos 27}[/tex]  

        T₂ = 263.1 N

In conclusion, using the equilibrium condition we can find the result for the tensions of the cables that the block supports are:

       T₁ = 245.1 N and T₁ = 263.1 N

Learn more here:  brainly.com/question/19403002

Answer:

A

Explanation:

water released then sunlight splits it into oxygen and hydrogen ions

Answer:

Approximately [tex]9.9\; \rm m\cdot s^{-1}[/tex], assuming that this object started from rest, [tex]g = 9.81\; \rm m \cdot s^{-2}[/tex], and that air resistance on this object is negligible.

Explanation:

If the effect of drag on this object is negligible, the acceleration of this object would be constantly equal to [tex]g[/tex], the gravitational field strength ([tex]g \approx 9.81\; \rm m\cdot s^{-2}[/tex] near the surface of the earth.)

Since acceleration is constant, it would be possible to find the final velocity of this object using SUVAT equations.

The following SUVAT equation would apply:

[tex]v^{2} - u^{2} = 2\, a\, x[/tex].

Rearrange to find an expression for [tex]v[/tex]:

[tex]\begin{aligned}v^{2} &= 2\, a\, x + u^{2}\end{aligned}[/tex].

[tex]\begin{aligned}v &= \sqrt{2\, a\, x + u^{2}}\end{aligned}[/tex].

Substitute in the values [tex]u = 0\; \rm m\cdot s^{-1}[/tex], [tex]a = 9.81\; \rm m\cdot s^{-2}[/tex], and [tex]x = 5\; \rm m[/tex]. Evaluate the expression to find the value of [tex]v[/tex]:

[tex]\begin{aligned}v &= \sqrt{2\, a\, x + u^{2}} \\ &= \sqrt{2 \times 9.81\; \rm m\cdot s^{-2} \times 5\; \rm m} \\ &\approx 9.9\; \rm m\cdot s^{-1}\end{aligned}[/tex].

Therefore, under these assumptions, the velocity of this object would be approximately [tex]9.9\; \rm m\cdot s^{-1}[/tex] right before it hits the ground.

Answer:

increasing the temperature of the object

Answer:

Explanation:

let's use kinematics to solve for max height above the hand.

At the top of its arc, the sword has zero vertical velocity.

v² = u² + 2as

s = (v² - u²)/2a

s = (0² - 5.0²) / (2(-9.8))

s = 1.2755...m

call it 1.3 m

to this we must adjust for the height of the hand at release which is

18.0 + 1.0 = 19.0 m above ground

19.0 + 1.3 = 20.3 m above ground

Answer:

sadsadasadsdassda

Answer:

Explanation:

KE = ½mv² = ½(6.8)8² = 217.6 J

round as appropriate because that result is way too much precision for the inputs provided. Arguably should be 200 J based on the single significant digit of the velocity.

Answer:

so2 is Sulfur dioxide.

Answer:

Yes it is

Explanation:

the sum moles at the left side equals the sum of moles at the right side

Answer:4.38 X 10^10 diapers.

Explanation:

[3 diapers / 1day] X [365 day / year] X 1 year X 40million (rough guess of 1-2.5 year olds)  = 4.38 X 10^10 diapers.

if we assume that between birth and 2.5 y of age a child uses 3 diapers per day then the total number of disposable diapers used per year in us would be 1095 diapers

Finding the product of two or more numbers in mathematics is done by multiplying the numbers. It is one of the fundamental operations in mathematics that we perform on a daily basis.

as given in the problem if we assume that between birth and 2.5 y of age a child uses 3 diapers per day

The number of diapers used in a day = 3

as there are 365 days in a year

The total number of diapers used in a year = 3×365

The total number of diapers used in a year = 1095 diapers

Thus, The total number of disposable diapers used in the United States each year would be 1095 diapers if we assume that a child uses 3 diapers per day between birth and 2.5 years of age.

Learn more about multiplication here,

https://brainly.com/question/10520264

#SPJ2        

Answer:

D. MECHANICAL ENERGY

SANA MAKA TULONG

Answer:

the answer is D

Explanation:

because I know it is D

3355400 Miles I highly doubt this though sorry

Answer:

number of protons = atomic number

number of electrons = atomic number

Answer:

Explanation:

μ = 0.05 is hardly a "rough surface", More like very slick ice. But OK

Forces acting parallel to the ramp with UP RAMP being positive direction.

                                  F = ma

Tension minus weight minus friction will equal mass acceleration

T - mgsinθ - μmgcosθ = ma

                                  T = m(a + g(sinθ + μcosθ))

                                  T = 200(1 + 9.8(sin25 + 0.05cos25))

                                  T = 1,117.14995

Which is closest to answer A.

Understand that answer precision to 3 or 4 significant digits as exampled by our solution options CANNOT be justified by input numbers with only a single significant digit as in this question.

In fact, we cannot get the 1136 N result unless we also use gravity to a single significant digit of 10 m/s²

jacob first stack is 1

Answer:

help

Explanation:

me

Answer:

To convert from denary to binary, start by subtracting the biggest place value you can from the denary number, then place a 1 in that place value column. Next, subtract the second biggest place value you can, and place a 1 in the column. Repeat this process until you reach zero.

Cho e xin câu trả lời được không ạ?

Answer:

The release of energy from fuels is used to make other forms of energy. When gasoline burns in a car engine, some of the chemical energy in the gasoline is converted into heat. The heat is converted into mechanical energy. The mechanical energy moves the car.

Answer:

The factors that affect an object's gravitational potential energy are its height relative to some reference point, its mass, and the strength of the gravitational field it is in.

Answer:

Always wear a lab coat and safety goggles when performing an experiment

✓ Behavior in the lab needs to be purposeful. Exercise caution when using the hot plate, as it can cause burns.

X Ice used in this lab can melt quickly. Be sure to insulate your containers.

✓ Label your glassware and paper cups clearly and appropriately. Many chemicals appear to be the same.

✓ Check glassware, such as beakers and test tubes, for cracks and chips prior to use.

X A fume hood should be used to collect any potentially harmful vapors.

✓ Wear the right gear, such as chemically resistant gloves and oven mitts, when performing the experiment.

A, C, D, F

Answer:

Im pretty sure its 7.5

Explanation:

your initial ( starting) velocity was 75. Your final velocity was 0. 75 / 0 = 0 m/s.

BUT you are calculating your acceleration, so it would be 75 - 0 divided by 10 = 7.5

Explanation:

A parasitic plant with yellow, slender and branched stem is called Cuscuta (Amarbel).

hope this helps you.

Answer:

Write two important of physical state

Answer:

(i) C=3Co

(ii) V=Vo/3

(iii) Decrease

Explanation:

(i) capacitance increase K times.

(ii) As charge remain constant so by using Q=CV

you will get potential decrease by K time.

(iii) Decrease due to induced electric field inside

dielectric material..

E=Eo-Eind

Explanation:

heyaaa hope it helps ☺️✌️