1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
anygoal [31]
3 years ago
9

What’s the answer to this problem ? with work pls !!

Physics
1 answer:
mars1129 [50]3 years ago
4 0
This is the answer to Question 5

You might be interested in
An object is moving at a speed of 20 m/s and has a kinetic energy of 10,000 J. What is the mass of the object?
Ratling [72]

Answer:

m=100kg

Explanation:

E=1/2mv^2

10000=1/2m(20)^2

10000=1/2m(400)

10000=1/2m200

50=1/2m

100=m

3 0
3 years ago
What happens to the wavelength of a wave on a string when the frequency is doubled
frozen [14]

Answer:

\lambda'=\dfrac{1}{2}\times \lambda

Explanation:

The number of oscillation per unit time is called frequency of a wave while the distance between two consecutive crests and the trough is called its wavelength.

The wavelength of a wave is given by :

\lambda=\dfrac{v}{f}

If frequency is doubled, f' = 2f

\lambda'=\dfrac{v}{f'}

\lambda'=\dfrac{v}{2f}

\lambda'=\dfrac{1}{2}\times \dfrac{v}{f}

\lambda'=\dfrac{1}{2}\times \lambda

So, when the frequency is doubled the wavelength of a wave on the string becomes half.

5 0
4 years ago
I’m gonna take a break for a few hours, possibly the whole weekend because I feel sick and uncomfortable: my stomache is a bothe
Scrat [10]
K shawty you do you
8 0
3 years ago
Read 2 more answers
Our sun has a low absolute magnitude compared to many other stars but appears very bright to us because of its
nadya68 [22]

relative closeness to earth

6 0
3 years ago
has been proposed to use an array of infrared telescopes spread over thousands of kilometers of spaceto observe planets orbiting
Katen [24]

Answer:

\triangle x=1.135 *10^9km

Explanation:

From the question we are told that:

Diameter of arrayd=6000km \approx 6000*10^3

Infrared wavelength \lambda =10m

Distance of planet d=59 light\ years \approx 55.82*10^{16}m

 

Generally the equation for Diffraction is mathematically given by

 sin\theta =1.22\frac{\lambda}{D}

Given that

 sin\theta=\frac{\triangle x}{R}

Therefore

 \frac{\triangle x}{R}=1.22\frac{\lambda}{D}

 \triangle x=1.22\frac{R \lambda}{D}

 \triangle x=1.22\frac{10 *55.82*10^{16}}{6000*10^3}

 \triangle x=1.135 *!0^1^2m

 \triangle x=1.135 *10^9km

6 0
3 years ago
Other questions:
  • From the figure, which letter shows the area of compression for the sound created by the tuning fork?
    9·1 answer
  • A 13-KG SLED IS MOVING AT A SPEED OF 3.0M/S. AT WHICH OF THE FOLLOWING SPEEDS WILL THE SLED HAVE TWICE AS MUCH KINETIC ENERGY
    13·1 answer
  • A car traveling at 15 m/s starts to decelerate steadily. It comes to a complete stop in 10 seconds. What is it’s acceleration
    8·2 answers
  • A 15.0-Ω resistor and a coil are connected in series with a 6.30-V battery with negligible internal resistance and a closed swit
    14·1 answer
  • A speed truck locks it’s brakes and it skids to a stop. If the truck’s total mass were doubled, it’s skidding distance would be?
    6·1 answer
  • Urgent!!!! Timed quiz. Calculate the velocity of the pink car.
    14·1 answer
  • Cassandra is asked to identify a solution in her laboratory classroom as acidic, basic, or neutral. She is given litmus
    7·2 answers
  • How much potential energy is stored on a stone kept on the earth surface? Why?​
    8·2 answers
  • Help plssss ineed answers....
    15·2 answers
  • A domestic water heater holds 189 L of water at 608C, 1 atm. Determine the exergy of the hot water, in kJ. To what elevation, in
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!