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
Lostsunrise [7]
3 years ago
12

Explain why some objects fall faster than other objects,

Physics
1 answer:
Vikentia [17]3 years ago
8 0

objects that are more dense, or have more mass, fall at a faster rate than less dense objects, due to this air resistance. A feather and brick dropped together. Air resistance causes the feather to fall more slowly.

You might be interested in
Pentru a scoate apă dintr‑o fântână, Ionel folosește dispozitivul reprezentat în figura 3, în care d = 20 cm și ℓ = 40 cm. Gălea
icang [17]

Answer:

no comprendo

Explanation:

6 0
3 years ago
A purse at radius 2.00 m and a wallet at radius 3.00 m travel in uniform circular motion on the floor of a merry-go-round as the
djverab [1.8K]

Complete Question:

A purse at radius 2.00 m and a wallet at radius 3.00 m travel in uniform circular motion on the floor of a merry-go-round as the ride turns.

They are on the same radial line. At one instant, the acceleration of the purse is (2.00 m/s2 ) i + (4.00 m/s2 ) j .At that instant and in unit-vector notation, what is the acceleration of the wallet

Answer:

aw = 3 i + 6 j m/s2

Explanation:

  • Since both objects travel in uniform circular motion, the only acceleration that they suffer is the centripetal one, that keeps them rotating.
  • It can be showed that the centripetal acceleration is directly proportional to the square of the angular velocity, as follows:

       a_{c} = \omega^{2} * r (1)

  • Since both objects are located on the same radial line, and they travel in uniform circular motion, by definition of angular velocity, both have the same angular velocity ω.

       ∴ ωp = ωw (2)

           ⇒ a_{p} = \omega_{p} ^{2} * r_{p} (3)

               a_{w} = \omega_{w}^{2} * r_{w} (4)

  • Dividing (4) by (3), from (2), we have:

        \frac{a_{w} }{a_{p}} = \frac{r_{w} }{r_{p}}

  • Solving for aw, we get:

        a_{w} = a_{p} *\frac{r_{w} }{r_{p} } = (2.0 i + 4.0 j) m/s2 * 1.5 = 3 i +6j m/s2

7 0
3 years ago
The frequency of the longitudinal standing wave shown in the drawing is 440 hz. the tube is open at both ends. what is the funda
bogdanovich [222]
440hz is the tube opened at both ends
6 0
3 years ago
• Describe the importance of a commonly used measuring system. Be prepared to give two examples of why having a common system of
IrinaVladis [17]
Metric system. important because it saves us time due to the fact that we do not have to convert our units every time. 
3 0
3 years ago
Which of the following statements are true? (There may be more than one correct choice.)
Luba_88 [7]

Answer:

option (A)

Explanation:

According to the Archimede's principle, when a body s immersed partly or wholly in a liquid, it experiences an upward force which is called buoyant force. The buoyant force is equal to the loss in the weight of body.

The weight of liquid displaces by the body is equal to the loss in weight of body.

Thus, option (a) is true.

5 0
3 years ago
Other questions:
  • It is necessary to determine the specific heat of an unknown object. the mass of the object is measured to be 199.0 g. it is det
    9·1 answer
  • Which planets are mostly "made of" atmosphere?
    15·2 answers
  • Chose a substance your familiar with. What are it’s physical and chemical properties
    5·1 answer
  • The mass of Venus is 81.5% that of the earth, and its radius is 94.9% that of the earth. If a rock weighs 75.0 N on earth, compu
    11·1 answer
  • ALWAYS use significant figure rules. Remember that these rules apply to all numbers that are measurements.
    6·2 answers
  • An important news announcement is transmitted by radio waves to people sitting next to their radios 42 km from the station and b
    14·1 answer
  • Using pressure and density of fluids.
    9·1 answer
  • PLEASE HELP :/
    9·1 answer
  • A scientist is testing a fertilizer used to make corn grow taller. The scientist
    9·1 answer
  • Need help ASAP please and thank you
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!