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
NISA [10]
3 years ago
7

Two objects have masses m and 5m, respectively. They both are placed side by side on a frictionless inclined plane and allowed t

o slide down from rest. Two objects have masses m and 5m, respectively. They both are placed side by side on a frictionless inclined plane and allowed to slide down from rest. A.The two objects reach the bottom of the incline at the same time.B.It takes the lighter object 5 times longer to reach the bottom of the incline than the heavier object. C.It takes the heavier object 10 times longer to reach the bottom of the incline than the lighter object. D.It takes the heavier object 5 times longer to reach the bottom of the incline than the lighter object. E.It takes the lighter object 10 times longer to reach the bottom of the incline than the heavier object.
Physics
1 answer:
Mama L [17]3 years ago
6 0

Answer:

A.The two objects reach the bottom of the incline at the same time.

Explanation:

-Since there is the incline is frictionless, there's no external force acting on the two objects except gravitational force(9.8N/kg).

-Gravitational acceleration ,9.8m/s^2, is equal for any two masses left in free fall despite the difference in massess.

-Therefore, the two bodies will reach the bottom of the incline at the exact same time.

You might be interested in
About how many days in the moon’s cycle is it waxing?.
Monica [59]

Answer: 29.5 days

The waxing moon phase comprises three separate moon phases: the Waxing Crescent, First Quarter, and the Waxing Gibbous.

8 0
2 years ago
Read 2 more answers
What is the voltage across a semiconductor bar if the current through it is 0.17 A? The electron concentration in the bar is 2.7
Anastaziya [24]

Answer:

The voltage across a semiconductor bar is 0.068 V.

Explanation:

Given that,

Current = 0.17 A

Electron concentration n= 2.7\times10^{18}\ cm^{-3}

Electron mobility \mu=1000 cm^2/Vs

Length = 0.1 mm

Area = 500 μm²

We need to calculate the resistivity

Using formula of resistivity

\sigma=n\times q\times \mu

\rho=\dfrac{1}{\sigma}

Put the value into the formula

\rho=\dfrac{1}{2.7\times10^{18}\times10^{6}\times1.6\times10^{-19}\times1000\times10^{-4}}

\rho=2\ \mu \Omega m

We need to calculate the resistance

Using formula of resistance

R=\dfrac{\rho l}{A}

R=\dfrac{2\times10^{-6}\times0.1\times10^{-3}}{500\times(10^{-6})^2}

R=0.4\ \Omega

We need to calculate the voltage

Using formula of voltage

V= IR

Put the value into the formula

V=0.17\times0.4

V=0.068\ V

Hence, The voltage across a semiconductor bar is 0.068 V.

6 0
3 years ago
Find the mass of an object if a 40 N of force causes the object to accelerate at 5.5 m/s/s
Murrr4er [49]

Answer:

<h3>The answer is 8 kg</h3>

Explanation:

The mass of the object can be found by using the formula

m =  \frac{f}{a}  \\

f is the force

a is the acceleration

From the question we have

m =  \frac{40}{5}  \\

We have the final answer as

<h3>8 kg</h3>

Hope this helps you

7 0
3 years ago
There are planets in the universe without a parent star. most all stars have planets. most stars are binary. true false
Ghella [55]

True : yes there are planets in the universe without a parent star called

rogue planets.

False :  most stars are not binary

What is rogue planets ?

planets which do not orbits the planetary system is known as roque planets. For example, pluto. Rogue planets can be smaller and bigger than jupiter too.

Free-floating planets or rogue planets without orbits around stars may also harbor life, some scientists believe. Due to the gravitational effects of giant planets within their system, these planets get kicked out of their system like any other planets formed around stars.

no most stars are not binary, binary which means two stars orbit around the common center and approximately only 40 binary stars have been found till not in our solar system.

Read more about solar system at:

brainly.com/question/12075871

#SPJ4

5 0
1 year ago
George feels very energetic and active on some days of the month and engages in gardening, washing laundry, and other menial job
Allisa [31]

Answer:

Valproate (Depakote)

Explanation:

it is a mood stablizer

8 0
3 years ago
Other questions:
  • Please help asap !!!!!!!!
    9·2 answers
  • A city’s bus line is used more as the urban population density increases. The more people in an area, the more likely bus lines
    15·2 answers
  • What is the minimum number of points necessary to determine a straight line?
    14·1 answer
  • a line passes through (8,-4) and has a slope 2/3. what is an equation in point slope form of the line? An equation of the line i
    7·1 answer
  • What is the Kinetic Energy of a 60 kg person on skis traveling 20 m/s?
    14·1 answer
  • If a cat falls off a ledge, the Earth pulls the cat to the ground with the force of gravity. According to Newton's Third Law the
    7·2 answers
  • Los estudiantes de la clase del Sr. Malio trabajaron en una investigación para medir el tiempo que le tomó al automóvil de energ
    7·1 answer
  • A car and a large truck traveling at the same speed collide head-on and stick together. Which vehicle experiences the larger cha
    5·1 answer
  • If a peregrine falcon dove at its maximum speed for half a mile to catch prey, how many seconds would the dive take? (round your
    6·1 answer
  • A large plate carries a uniform charge density σ = 8. 85 × 10-9 c/m2. a pattern showing equipotential surfaces with a 5 v potent
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!