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
igor_vitrenko [27]
3 years ago
9

Please may you answer this.

Physics
1 answer:
Maru [420]3 years ago
6 0
Crest
Trough
Amplitude
You might be interested in
A man can jump 1.5 m on earth. calculate the approximate
Olegator [25]

Answer:

18 m

Explanation:

G = Gravitational constant

m = Mass of planet = \rho V

\rho = Density of planet

V = Volume of planet assuming it is a sphere = \dfrac{4}{3}\pi r^3

r = Radius of planet

Acceleration due to gravity on a planet is given by

g=\dfrac{Gm}{r^2}\\\Rightarrow g=\dfrac{G\rho V}{r^2}\\\Rightarrow g=\dfrac{G\rho \dfrac{4}{3}\pi r^3}{r^2}\\\Rightarrow g=\dfrac{4G\rho\pi r}{3}

So,

g\propto \rho r

Density of other planet = \rho_p=\dfrac{1}{4}\rho_e

Radius of other planet = r_p=\dfrac{1}{3}r_e

\dfrac{g_e}{g_p}=\dfrac{\rho_e r_e}{\rho_p r_p}\\\Rightarrow \dfrac{g_e}{g_p}=\dfrac{\rho_e r_e}{\dfrac{1}{4}\rho_e\times \dfrac{1}{3}r_e}\\\Rightarrow \dfrac{g_e}{g_p}=12\\\Rightarrow g_p=\dfrac{g_e}{12}\\\Rightarrow g_p=\dfrac{9.8}{12}

Since the person is jumping up the acceleration due to gravity will be negative.

From kinematic equations we have

v^2-u^2=2g_es\\\Rightarrow u^2=v^2-2g_es\\\Rightarrow u^2=0-2\times -9.8\times 1.5\\\Rightarrow u^2=2\times 9.8\times 1.5

On the other planet

v^2-u^2=2g_ps\\\Rightarrow s=\dfrac{v^2-u^2}{2g_p}\\\Rightarrow s=\dfrac{0-(2\times 9.8\times 1.5)}{2\times -\dfrac{9.8}{12}}\\\Rightarrow s=18\ \text{m}

The man can jump a height of 18 m on the other planet.

5 0
3 years ago
A small uniform disk and a small uniform sphere are released simultaneously at the top of a high inclined plane, and they roll d
barxatty [35]

Answer:

(D) the sphere

Explanation:

The bodies given are Disk and Solid sphere (uniform sphere)

Moment of inertia of the bodies are

I(disk) = \frac{MR^2}{2}

I(sphere) = \frac{2MR^2}{5}

Since the moment of inertia of sphere is less than that of disk, therefore sphere will reach the bottom first.

3 0
3 years ago
What wires allow electrons to flow the easiest?
docker41 [41]
The shortest and straight ones
5 0
3 years ago
A 0.20 mass on a horizontal spring is pulled back a certain distance and released. The maximum speed of the mass is measured to
olga55 [171]

Answer:

d

Explanation:

Ya gon find the Kenitic Energy first

K=½mv²===> K=½×0.2×(0.2)²===> 0.1(0.04)===> 0.004

and now the replacement:

0.004=½×0.4V²====> v²=0.02===> V=0.14m/s

4 0
3 years ago
Write an Hypothesis whether land or water heats faster
Hatshy [7]

Answer:

Land heats faster

Explanation:

Land heats faster because absorbs much more solar radiation.

5 0
3 years ago
Other questions:
  • Velocity profile of a moving fluid over a flat (fixed) plate is given as: ???????? = from the fixed plate (yy = 0) in mm, u is t
    14·1 answer
  • If the forces acting on an object produce a net force of zero, the forces are called
    10·1 answer
  • An electron moves 4.5 m in the direction of an electric field of strength of 325N/C. Determine the change in electrical potentia
    5·1 answer
  • Why the number of primary turns of coil and secondary turns of coil are not made equal?​
    11·1 answer
  • Neutron stars are:
    14·2 answers
  • What must occur for a process to be a chemical reaction?
    6·1 answer
  • How do electromagnetic waves travel through a vacuum?​
    5·1 answer
  • Two motorcycles are traveling due east with different velocities. However, 5.68 seconds later, they have the same velocity. Duri
    9·1 answer
  • What would happen if the gravitational force between the moon suddenly disappeared?
    11·1 answer
  • Angie, brad, and carlos are discussing a physics problem in which two identical bullets are fired with equal speeds at equal-mas
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!