You mix two clear solutions , instantly your see a bright yellow precipitate form. What type of reaction did your just observe

Answers

Answer 1
Answer: precipitation reaction is the reaction that you have just observed.
Answer 2
Answer: I think the answer to this question is "a chemical reaction".

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Which factors are used the calculate the kinetic energy of an object? Check all that apply. gravity velocity volume mass height

Answers

The factors that are included in the calculation of the kinetic energy of an object would be the velocity and its mass. The kinetic energy's formula is half of the product of the mass and the velocity that is squared. The volume, height, and gravity are not included.
Kinetic energy = (1/2) (the object's mass) (its speed or velocity)²  .

No other quantities are involved.

A graph depicts force versus position. What represents the work done by the force over the given displacement?A. The work done is equal to the product of the maximum force times the maximum position.
B. The work done is equal to the area under the curve.
C. Work cannot be determined from this type of graph.
D. The work done is equal to length of the curve.
E. The work done is equal to the slope of the curve.

Answers

Work = (force) x (distance)

With a force/distance graph, the work is the area under the graph.

If the graph is curved, broken, or some other screwy shape that makes it difficult to
get the area in any simple way, then work is the integral of the function represented
by the graph.

Final answer:

The work done by a force over a given displacement, as represented in a force versus position graph, is equal to the area under the curve.

Explanation:

In a force versus position graph, the work done by the force over the given displacement is represented by the area under the curve. The work done is the integral of the force with respect to displacement which, in a graphical representation, translates to the area under the curve of the force versus position graph. For example, if the force is constant, the graph will be a rectangle, and the work done will be the product of force (height of the rectangle) and displacement (width of the rectangle). If the force is variable, the area under the curve might need to be calculated by dividing it into small sections and summing up their areas.

Learn more about Work and Energy here:

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A bullet leaves a gun with a horizontal velocity of 100 m/s. Calculate the distance it would travel in 1.3 seconds. a 1247 m
b 0.013 m
c 130 m
d 76.92 m

Answers

Answer:

 Option C is the correct answer

Explanation:

  We have equation of motion , s= ut+(1)/(2) at^2, s is the displacement, u is the initial velocity, a is the acceleration and t is the time.

  In this case initial velocity = horizontal velocity = 100 m/s, acceleration = 0 m/s^2, we need to calculate displacement when time = 1.3 seconds.

  Substituting

      s= 100*1.3+(1)/(2) *0*1.3^2 = 130 meter

    So, bullet will travel a distance of 130 meter  in 1.3 seconds.

Option C is the correct answer

A long solenoid has 1400 turns per meter of length, and it carries a current of 4.9 A. A small circular coil of wire is placed inside the solenoid with the normal to the coil oriented at an angle of 90.0˚ with respect to the axis of the solenoid. The coil consists of 42 turns, has an area of 1.2 × 10-3 m2, and carries a current of 0.45 A. Find the torque exerted on the coil.

Answers

Answer:

The torque on the coil is 1.955* 10^(- 4)\ N-m

Solution:

No. of turns per meter length, n = 1400 turns\m

Current, I = 4.9 A

Angle, \theta = 90.0^(\circ)

No. of turns of coil, N = 42 turns

Area, A = 1.2* 10^(- 3)m^(2)

Current in the coil, I' = 0.45 A

Now,

To calculate the exerted torque on the coil:

The magnetic field, B produced inside the coil is given by:

B = n\mu_(o)I

B = 1400* 4\pi times 10^(- 7)* 4.9 = 8.62* 10^(- 3)\ T

Now, the torque exerted is given by:

\tau = I'NAB

\tau = 0.45* 42* 1.2* 10^(- 3)* 8.62* 10^(- 3) = 1.955* 10^(- 4)\ N-m

Answer:

T\approx 1.95* 10^(-4) N.m

Explanation:

Given:

A long solenoid having

no. of turns per meter, n =1400

current, I = 4.9 A

A small coil of wire placed inside the solenoid

angle of orientation with respect to the axis of the solenoid, \theta=90\degree°

no. of turns in the coil, N = 42

area of the coil, a= 1.2* 10^(-3) m^2

current in the coil, i =0.45 A

We have for torque:

T=n.i.a.B. sin\theta.......................(1)

B=\mu_(0) .n.I................................(2)

where:

B= magnetic field

\mu_0=The permeability of free space =4\pi*10^(-7) T.m.A^(-1)

Substitute B from eq. (2) into eq. (1) we have:

T=n.i.a.(\mu_0.N.I ).sin\theta

putting the respective values in above eq.

T=42* 0.45* 1.2* 10^(-3)* 4\pi*10^(-7) * 1400* 4.9* sin 90^(\circ)

T\approx 1.95* 10^(-4) N.m

An blank
Used to determine the change of an object

Answers

The acceleration is used to determine the change of an object.

At the beginning of a basketball game, a referee tosses the ball straight up with a speed of 4.6 m/s. a player cannot touch the ball until after it reaches its maximum height and begins to fall down. what is the minimum time that a player must wait before touching the ball? s

Answers

At the beginning of a basketball game, a referee tosses the ball straight

up with a speed of 4.6 m/s. a player cannot touch the ball until after it reaches its maximum height and begins to fall down. what is the minimum time that a player must wait before touching the ball? s

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kinemaic equation

v=u-at

0=4.6-9.81xt

t=4.6/9.81 ... about half a second