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4 years ago

Which of the following statements regarding processing is true?

Physics

1 answer:

Inga [223]4 years ago

4 0

In our Solar System there are nine Planets, It's realy

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How do you graph motion in physics? How do you graph motion in physics? I've seen problems state that an object is in free fall

Dahasolnce [82]

This is Kinematics and the equations in your book.

A speed time graph would plot the speed of something against the teime it was at a speed.

If it were changing it speed constantly, that would be a straight line if acclerating. Total distrance would be the area under the graph.

5 0

3 years ago

An engineering intern is studying the effect of temperature on the resistance of a current carrying wire. She applies a voltage

Mars2501 [29]

Answer:

I=2.80 A

Explanation:

We Know that R =R₀(1+∝ ΔT)

R=R₀ (1+3.9*10⁻³ *(61-20))

R=R₀ (1.1599)

I=V/R=V/(R₀ (1.1599)

1.4 = V/(R₀ (1.1599) ∵ equation 1

We have to calculate I when T=-88°

R =R₀(1+∝ ΔT)

R=R₀ (1+3.9*10⁻³ *(-88-20))

R=R₀ (0.5788)

I=V/(R₀ (0.5788) ∵equation 2

Dividing equation 2 by equation 1

$\frac{I}{1.4} =\frac{1.1599}{0.5788}$

I = 2.80 A

4 0

3 years ago

Read 2 more answers

A stone is dropped into a river from a bridge 44.0 m above the water. Another stone is thrown vertically down 1.72 s after the f

Mariana [72]

Answer:

u₀ = 17.14 m/s

Explanation:

given,

bridge height = 44 m

initial speed of the first stone = 0 m/s

initial speed of the second stone = ?

difference after which the second stone is thrown = 1.72 s

for stone 1

$h = ut + \dfrac{1}{2}gt^2$

$h =\dfrac{1}{2}gt_1^2$

for stone 2

$h = u_0 (t_1-t) + \dfrac{1}{2}g (t_1-t) ^2$

$t_1 =\sqrt{\dfrac{1}{2}gh}$

$t_1 = \sqrt{\dfrac{1}{2}\times 9.81\times 44}$

t₁ = 14.69 s

$44 = u_0 \times 1.72 + \dfrac{1}{2}g\times 1.72 ^2$

u₀ = 17.14 m/s

8 0

4 years ago

Mary and Carl drove to the store to shop. Their trip to the store, time at the store, and the trip home are graphed here. What w

vazorg [7]

Answer: is C

Explanation: i hope it helps :)

3 0

3 years ago

Read 2 more answers

Select the situations from the list in which mechanical energy is conserved. (A) A ball slides down a hill with friction. (B) An

slamgirl [31]

Answer:

B, D,E,F

Explanation:

Situations from the list in which mechanical energy is conserved.

Whenever there is friction there is always some loss of energy in the process and hence energy cannot be conserved.

- The Moon orbiting the Earth (Total energy is remains the same)

- An ice skater gliding along the ice ( smooth surface no friction loss)

- A ball sliding down a friction less hill ( again friction less process)

- A child swinging on a friction less swing, ignoring air resistance

5 0

3 years ago

Read 2 more answers