All categories

4 years ago

Which illustration represents low accuracy but high precision?

Physics

2 answers:

Misha Larkins [42]4 years ago

7 0

Answer:

D i think

Explanation:

podryga [215]4 years ago

4 0

Answer:

Explanation:

a p e x !

You might be interested in

Which of the following describes exercise science?

Snowcat [4.5K]

Answer:

Explanation:

An educated guess and also i think because it has the word muscle in it

6 0

3 years ago

Read 2 more answers

When spiking a volleyball, a player changes the velocity of the ball from 4.2m/s to -24m/s along a certain direction. If the imp

dedylja [7]

Answer:

The mass of the volleyball is 0.32 kg.

Explanation:

Given that,

Initial speed of the ball, u = 4.2 m/s

Final speed of the ball, v = -24 m/s

The impulse delivered to the ball by the player is -9.3 kg-m/s.

To find,

Mass of the volleyball.

Solution,

The change in momentum of the volleyball is equal to the impulse delivered to the ball. It is given by :

$J=m(v-u)$

$m=\dfrac{J}{(v-u)}$

$m=\dfrac{-9.3\ kg-m/s}{(-24-4.2)\ m/s}$

m = 0.32 kg

So, the mass of the volleyball is 0.32 kg.

5 0

3 years ago

An electron in a hydrogen atom jumps from the n = 3 state to the ground state. Which of the following statements can you deduce

anyanavicka [17]

Answer:

B) True. It is the photon is emitted the wavelength is correct

Explanation:

For this exercise let's use the Bohr model for the hydrogen atom

Eₙ = -13.606 / n2

This gives the energy of the levels in eV. let's look for the energy

n = 1

E₁ = -13,606

n = 3

E₃ = -13.606 / 3²

E₃ = -1.512 eV

The transition occurs when moving from one level to another

ΔE = E₃ -E₁

ΔE = -1.512 + 13.606

ΔE = 12.094 eV

Now let's use the Planck equation and the speed of light for the energy of the transition

E = h F

c = λ f

E = h c / λ

E = 6.63 10⁻³⁴ 3 10⁸ / λ

E = 19.89 10⁻²⁶ /λ

λ = 19.89 10⁻²⁶ / E

Let's reduce energy to July

E = 12,094 eV (1.6 10⁻¹⁹ J / 1 eV) = 19.35 10⁻¹⁹ J

λ = 19.89 10⁻²⁶ / 19.35 10⁻¹⁹

λ = 1.0279 10⁻⁷ m

Let's reduce to nm

λ = 1.0279 10⁻⁷ m (10⁹ nm / 1 m)

λ = 102.79 nm

Let's examine the answers

A) False is another wavelength and the photon emitted

B) True. It is the photon is emitted the wavelength is correct

C) False. Wavelength is different

D) False the photon is emitted

E) False wavelength is different

7 0

4 years ago

Which of the following describes an accelerated motion?

iren2701 [21]

If the object is following a curve, or turning a corner, or slowing down, or speeding up, then it's motion is accelerated.

3 0

4 years ago

Why is an increase in speed a curved line on a position vs. time graph but a straight diagonal line on a speed vs. time graph?

guapka [62]

What do you need help with

7 0

3 years ago

Which illustration represents low accuracy but high precision?​

Which illustration represents low accuracy but high precision?