The diagram is a real world example of the first and second laws of thermodynamics. It shows how thermal energy is used to generate electricity. Which best describes how the diagram illustrates both laws of thermodynamics?

Answer:

c

Explanation:

Answer:

The two types of biogenous sediments are calcareous ooze and siliceous ooze

Explanation:

Answer:

The basketball player jumped 10 m high.

Explanation:

Vertical Launch Upwards

In a vertical launch upwards, an object is launched vertically up without taking into consideration any kind of friction with the air.

If vo is the initial speed and g is the acceleration of gravity, the maximum height reached by the object is given by:

[tex]\displaystyle h_m=\frac{v_o^2}{2g}[/tex]

The basketball player jumps up with a speed of vo=14 m/s. The maximum height is:

[tex]\displaystyle h_m=\frac{14^2}{2*9.8}[/tex]

[tex]\displaystyle h_m=\frac{196}{19.6}=10[/tex]

The basketball player jumped 10 m high.

Answer:

The horizontal component of the velocity is 49.85 m/s.

Explanation:

Rectangular Components of a Vector

A 2D vector can be expressed in several forms. The rectangular form gives its two components, one for each axis (x,y). The polar form gives the components as the pair (r,θ) being r the magnitude and θ the angle.

When the magnitude and angle of the vector are given, the rectangular components are calculated as follows:

[tex]v_x=v\cos\theta[/tex]

[tex]v_y=v\sin\theta[/tex]

Where v is the magnitude of the vector and θ is the angle with respect to the x positive direction.

The cart is moving at v=55 m/s at θ=25°, thus:

[tex]v_x=55\cos 25^\circ[/tex]

[tex]v_x=49.85\ m/s[/tex]

The horizontal component of the velocity is 49.85 m/s.

Answer:

0.5kg

Explanation:

Mass = Weight / Gravitational field strength

Mass = 4.9 / 9.8

Mass = 0.5

It's Z your welcome :)

Answer:

It is Z i believe.

Explanation:

Potential Energy = mass x gravity x height

W: 980 = (50)(9.8)(h)

X: 1029 = (35)(9.8)(h)

Y: 1519 = (62)(9.8)(h)

Z: 1176 = (24)(9.8)(h)

simplify:

W: 980 = 490h

X: 1029 = 343h

Y: 1519 = 607.6h

Z: 1176 = 235.2h

Divide from both sides of each equation:

W: (980/490) = h

X: (1029/343) = h

Y: (1519/607.6) = h

Z: (1176/235.2) = h

Simplify the left side:

W: 2 = h

X: 3 = h

Y: 2.5 = h

Z: 5=h

Answer:

d

Explanation:

Answer:

3. blue sky

Explanation:

I answered blue sky on my quiz and got it correct.

Answer:

Blue Sky

Explanation:

I also took the test :)

Answer:

I think the the answer is creating and layout and template style     ( C )

Explanation:

I did it before and i was checking my notes and i wrote that down , Hope this Helps :)

Answer:

F = 1200 [N]

Explanation:

Torque is defined as the product of force by Radius.

[tex]T=F*r[/tex]

where:

T = torque = 300 [N*m]

r = radius = 50/2 = 25 [cm] = 0.25 [m]

[tex]F=T/r\\F = 300/0.25\\F = 1200 [N][/tex]

Answer:

B. Arc blast

Explanation:

Arc blast are as a result of rapid injection of electrical energy into an arc. These shock waves and arc blast pressure wave at low level can lead to damage of eardrums at lower levels and cardiac arrest at high levels.

Strong magnetic fields created by high currents (> 100 kA) can result to equipment destruction. These arc blast hazards are mostly found in high-energy power circuits and large capacitor banks.

Answer:

Toward the normal line

Explanation:

I had the same question on a quiz

Answer:

5) The approximate height is about 80 m. Choice (c)

6) The stone takes about 3 seconds to rise to its maximum height

Explanation:

Free Fall Motion

A free-falling object falls under the sole influence of gravity. Any object that is being acted upon only by the force of gravity is said to be in a state of free fall.

If an object is dropped from rest in a free-falling motion, it falls with a constant acceleration called the gravitational acceleration, which value is [tex]g = 9.8 m/s^2[/tex].

The distance traveled by a dropped object is:

[tex]\displaystyle y=\frac{gt^2}{2}[/tex]

Question 5

Given the stone reaches the ground in t=4 seconds, the height of the tower is:

[tex]\displaystyle y=\frac{9.8*4^2}{2}=78.4\ m[/tex]

The approximate height is about 80 m. Choice (c)

Question 6

Vertical Motion

The vertical motion of an object is controlled by the force of gravity. This means that there is a non-zero net force acting on the object that makes it accelerate downwards.

If the object is thrown upwards at speed vo, its speed at time t is:

[tex]v_f=v_o-g.t[/tex]

The stone reaches its maximum height when the final speed is zero, thus:

[tex]v_o-g.t=0[/tex]

Solving for t:

[tex]\displaystyle t=\frac{v_o}{g}[/tex]

The stone is thrown vertically upwards with vo=30 m/s, thus:

[tex]\displaystyle t=\frac{30}{9.8}[/tex]

[tex]t=3.06\ s[/tex]

[tex]t\approx 3\ s[/tex]

The stone takes about 3 seconds to rise to its maximum height

Answer:

True

Explanation:

I just know.

Answer:

group 0

Explanation:

it might be xenon (Xe)

According to the electronic configuration, and assuming the element to be halogen it is most likely to be grouped with potassium as halogens are  in need of one electron  which is  easily made available by potassium.

Electronic configuration is defined as the distribution of electrons which are present in an atom or molecule in atomic or molecular orbitals.It describes how each electron moves independently in an orbital.

Knowledge of electronic configuration is necessary for understanding the structure of periodic table.It helps in understanding the chemical properties of elements.

Elements undergo chemical reactions in order to achieve stability. Main group elements obey the octet rule in their electronic configuration while the transition elements follow the 18 electron rule. Noble elements have valence shell complete in ground state and hence are said to be stable.

Learn more about electronic configuration,here:

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Answer:

Q = 78375 [J]

Explanation:

To solve this problem we must use the following ideal equation for the thermal energy of an element or substance depending on the temperature change.

[tex]Q=m*C_{p}*(T_{final}-T_{initial})[/tex]

where:

Q = heat [J]

m = mass = 0.25 [kg]

Cp = specific heat = 4180 [J/kg*C]

Tinitial = 25[°C]

Tfinal = 100 [°C]

[tex]Q =0.25*4180*(100-25)\\Q = 78375 [J][/tex]

Answer:

The axle is fixed to a frame or a block. The pulley is normally fixed to a support above the load. The load is tied to one end of the rope and the effort is applied at the other end. Such a pulley makes our work easier by simply changing the direction of the force, i.e. a load is lifted up using a downward effort.

May be this will help U

Answer:

The axle is fixed to a frame or a block. The pulley is normally fixed to a support above the load. The load is tied to one end of the rope and the effort is applied at the other end. Such a pulley makes our work easier by simply changing the direction of the force, i.e. a load is lifted up using a downward effort

Explanation:

Answer:

The kinetic energy before the collision was 8 J

Explanation:

The given parameters are;

The mass of the metal ball at rest, m₁ = 3.0 kg

The velocity of the ball at rest = 0 m/s

The mass of the metal ball that hits the one at rest, m₂ = 1.0 kg

The velocity of the metal ball that hits the one at rest, v₂ = 4.0 m/s

The velocity with which the 3.0 kg ball moves forward = 2.0 m/s

The velocity with which the 1.0 kg ball bounces back = 2.0 m/s

a) Kinetic energy, K.E. = 1/2 × m × v²

Where;

m = The mass of the of the object in motion

v = The velocity of the object

Before the collision, we have;

Initial K.E. = 1/2 × m₁ × v₁² + 1/2 × m₂ × v₂²

∴ Initial K.E. = 1/2 × 3.0 kg × (0 m/s)² + 1/2 × 1.0 kg × (4.0 m/s) ² = 8 J

The kinetic energy before the collision = The initial K.E. = 8 J.

The displacement of a cyclist who travels 1 mile north 1 mile east then finally 1 mile south will be 1 mile in the east direction.

A displacement is a vector in engineering and mechanics that has a length equal to the shortest route between a point P's initial and final positions.

The displacement is the vector quantity that depends on the magnitude as well as direction. And follows the law of vector addition.

The cyclist who travels 1 mile north 1 mile east then finally 1 mile south​. Then the diagram is drawn below.

From the graph, the displacement is given as,

Displacement = 1 - 0

Displacement = 1 mile

The displacement of a cyclist who travels 1 mile north 1 mile east then finally 1 mile south will be 1 mile in the east direction.

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Answer:

mountains, earthquakes, tsunamis

Explanation:

Answer:

1,470,000Joules

Explanation:

Work done = Force * distance moves in the direction of the force

Given

mass = 3000kg

distance = 20m

Get the force

F = mg

F = 3000(9.8)

F = 29400N

Get the work done

Work done = 29400 * 50

Work done = 1,470,000Joules

Hence 1,470,000Joules work has been done on the concrete

Answer:

840

Explanation:

Multiply the specific heat and mass. Then subtract the initial temperature from the final one to get 20. Now multiply all your numbers together.

Answer:

C. It transforms electrical energy into mechanical energy

Answer: C

Explanation: