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
Allisa [31]
3 years ago
5

A rock is dropped from the ceiling of a truck's cargo bay. with the truck moving at constant velocity, the rock strikes the floo

r
A) ahead of the midpoint of the ceiling.
B) behind the midpoint of the ceiling.
C) exactly below the midpoint of the ceiling.
D) more information is needed to solve this problem.
E) none of these.
Physics
1 answer:
wolverine [178]3 years ago
3 0

Answer:

A rock dropped from the ceiling of a truck's cargo bay, with the truck moving at constant velocity, the rock strikes the floor exactly below the midpoint of the ceiling.

Explanation:

An object moving at a constant velocity, is changing its displacement at an equal time.That is, the object is moving on a straight line at a constant speed.

Also an object with a constant velocity is not accelerating, since acceleration is the change in velocity with respect to time.

Therefore, A rock dropped from the ceiling of a truck's cargo bay, with the truck moving at constant velocity, the rock strikes the floor exactly below the midpoint of the ceiling.

You might be interested in
S Problem Set<br> 2.) 6.4 x 109 nm to cm
anyanavicka [17]

Answer:

6.4\cdot 10^2 cm

Explanation:

First of all, let's convert from nanometres to metres, keeping in mind that

1 nm = 10^{-9} m

So we have:

6.4\cdot 10^9 nm \cdot 10^{-9} m/nm = 6.4 m

Now we can convert from metres to centimetres, keeping in mind that

1 m = 10^2 cm

So, we find:

6.4 m \cdot 10^2 cm/m = 6.4\cdot 10^2 cm

8 0
3 years ago
Imagine a ringing bell set inside a sealed glass jar. Once all the air is removed and a vacuum is crated, the ringing sound is n
kenny6666 [7]

working...

Sound wave needs medium to travel

as energy which travels in this wave is because of transfer from one particle to another particle

If there is no medium then energy can not be transferred and sound wave will not travel

so in vacuum we can not listen sound

similarly here air is removed it means there is no medium inside the jar to travel the sound and hence we can not hear it

Option B is correct

Without air, the sound waves cannot travel to the ear.

5 0
3 years ago
What figure represents a longitudinal figure
OlgaM077 [116]

Answer:

The wavelength can always be determined by measuring the distance between any two corresponding points on adjacent waves. In the case of a longitudinal wave, a wavelength measurement is made by measuring the distance from a compression to the next compression or from a rarefaction to the next rarefaction.

Explanation:

3 0
3 years ago
The conversion of thermal energy into mechanical energy requires
emmainna [20.7K]
Temperature difference is required, so i’m guessing - a. thermometer - would be required to check that temperature.
8 0
3 years ago
Faraday's Law states that the negative of the time rate of change of the flux of the magnetic field through a surface is equal t
MrRa [10]

Answer:

(C). The line integral of the magnetic field around a closed loop

Explanation:

Faraday's law states that induced emf is directly proportional to the time rate of change of magnetic flux.

This can be written mathematically as;

EMF = -\frac{\delta \phi _B}{\delta t}

(\frac{\delta \phi _B}{\delta t} ) is the rate of change of the magnetic flux through a surface bounded by the loop.

ΔФ = BA

where;

ΔФ is change in flux

B is the magnetic field

A is the area of the loop

Thus, according to Faraday's law of electric generators

∫BdL = \frac{\delta \phi _B}{\delta t} = EMF

Therefore, the line integral of the magnetic field around a closed loop is equal to the negative of the rate of change of the magnetic flux through the area enclosed by the loop.

The correct option is "C"

(C). The line integral of the magnetic field around a closed loop

8 0
3 years ago
Other questions:
  • When viewed from Earth, Mars appears to change colors. This most likely happens because
    7·1 answer
  • Which is a example of speed? A)Cindy biked westward at 30km/h B)A Rock is the the left of a flowerpot C) A dog runs an average o
    6·2 answers
  • What do lungs do in your body ?
    8·2 answers
  • For life to flourish on Earth, several changes occurred that affected the atmosphere, such as _____.
    14·1 answer
  • Needing help with this please
    10·1 answer
  • Why does the sky appear blue?
    15·2 answers
  • If you are measuring how far a ball traveled in an experiment which example below could be an
    9·1 answer
  • A projectile is launched horizontally from a height of 8.0 m. The projectile travels 6.5 m before hitting the ground.
    7·1 answer
  • Suppose that two objects attract each other with a gravitational force of 16 units. If the mass of both objects was doubled, and
    10·1 answer
  • The observed a value for the diameter of a Hydrogen atom is 10.1 nm and the accepted value for this is 10 nm. Was you observatio
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!