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
Juliette [100K]
3 years ago
12

Billy is pulling his sister Joslyn in the sled. Based on your knowledge of F=ma, describe what would

Physics
1 answer:
lana [24]3 years ago
7 0

Answer:

the motion of the sled decrease

Explanation:

the mass increase

You might be interested in
You are throwing a ball straight up in the air. At the highest point, the ball’s
Afina-wow [57]
The answer is C. Acceleration is nonzero, but it’s velocity is zero
8 0
4 years ago
What force pulls the moon towards the earth?
yawa3891 [41]
Gravity pulls the moon towards the earth.
3 0
3 years ago
: In heavy rushIn heavy rush-hour traffic you drive in a straight line at 12 m/s for 1.5 minutes, then you have to stop for 3.5
zhuklara [117]
Guessing you want the average speed. We can multiple each speed by the time we spent going that speed, and them all together and then divide by the total time we spent in traffic to get the average speed. We spent a total of 7.5 minutes in traffic, so average speed  = (12*1.5+0*3.5+15*2.5)/7.5 = 7.4 m/s
8 0
3 years ago
Rarefaction occurs only in a _______ wave.
Olenka [21]

<u>Answers
</u>

1) B. longitudinal.

2) B. air is cooler than the ground.

<u>Explanation
</u>

Q1

There are two categories of a wave. That is transverse and longitudinal waves. Transverse waves forms crests and troughs while longitudinal forms compressions and rarefaction as they travel. Rarefactions are regions where the wavelengths are longer than other regions.

Q2

As the ray of light moves from an optically less dense to a more dense region it bends towards the normal.

If the sound is bending away from the earth's surface, then the ground must be warmer than the air. As the sound travels it moves from optically dense medium to a less dense medium. For this reason it bends away from the normal. This can only happen when, B. air is cooler than the ground.

4 0
3 years ago
Read 2 more answers
A light, flexible cable is wrapped around a solid cylinder with mass 3.3 kg and a radius of 0.8 meters. The cylinder rotates on
kari74 [83]

Answer:

9.16rad/s^2

Explanation:

We are given that

Mass,m_1=3.3 kg

Radius,r=0.8 m

m_2=4.9 kg

Height,h=2.9 m

We have to find the angular acceleration of the cylinder.

According to question

4.9g-T=4.9a

Tr=I\alpha

Where

\alpha=\frac{a}{r}

Tr=\frac{1}{2}m_1ra

T=\frac{1}{2}m_1a=\frac{1}{2}(3.3)a

Substitute the value

4.9g-\frac{1}{2}(3.3a)=4.9a

4.9\times 9.8=4.9a+\frac{3.3a}{2}

Where g=9.8 m/s^2

48.02=a(4.9+1.65)=6.55a

a=\frac{48.02}{6.55}=7.33m/s^2

Angular acceleration,\alpha=\frac{a}{r}=\frac{7.33}{0.8}=9.16rad/s^2

7 0
3 years ago
Other questions:
  • A scientific law is a statement of fact that describes an action or set of actions. Laws are accepted as fact because they are a
    11·1 answer
  • A star’s light is shifted to the red part of the light spectrum.
    8·1 answer
  • Which of the following types of radiation has the highest energy? A) a-particles B) β-particles C) y-rays D) visible light E) Al
    8·1 answer
  • Calculate the momentum of a photon of light that has a frequency of 5.09 x 10^14 HZ.
    11·1 answer
  • A simple harmonic oscillator consists of a block of mass 4.10 kg attached to a spring of spring constant 240 N/m. When t = 1.70
    13·1 answer
  • Which property of gases best explains the ability of air bags to cushion the force of impact during a car accident?
    10·1 answer
  • Help would be greatly appreciated
    14·2 answers
  • When I double displacement reaction takes place, one of the products must be_______.
    6·2 answers
  • A particular eco solar system has five planets in total a b c d and e the table lists the orbital periods of these planets in da
    10·1 answer
  • Tech a says that the pcv system recirculates exhaust gases into the intake manifold. tech b says that the pcv system recirculate
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!