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
EastWind [94]
3 years ago
8

An object accelerates downward at a constant rate of 2.00 m/s2 while completely submerged in water. Neglect the viscosity (fluid

friction) of the water. The average density of the object is ______ kg/m3. Use g
Physics
1 answer:
Sidana [21]3 years ago
5 0

Answer:

833kg/m³

Explanation:

We have volume as Vm³

Density of this object = dKg/m³

Water density = 1000kg/m³

g = 10m/s²

We calculate FB which is the the buoyant force on object. Calculated as volume of object multiplied by water density

Fb = 1000Vg upwards

W = Vdg

Acceleration = net upwards/m

M = mass

2 = (1000g-gd)/d

2d = 10000 - 10d

2d + 10d = 10000

12d = 10000

d = 833.33kg/m³

Approximately 833kg/m³

The average density of the object is therefore 833kg/m³

You might be interested in
A bicyclist of mass 88.0 kg puts all his weight on each downward-moving pedal as he pedals up a steep road. Take the diameter of
Eduardwww [97]

Answer:

142.296 Nm.

Explanation:

Torque: This is the force that tend to cause a body to rotate or twist. The S.I unit of torque is Nm.

From the question,

T = F×r.................... Equation 1

Where T = Torque, F = Force, r = radius of the circle.

Note: F is the weight of the bicyclist.

Then,

F = W = mg............... Equation 2

Substitute equation 2 into equation 1

T = mgr................... Equation 3

Given: m = 88 kg, g = 9.8 m/s², r = 0.33/2 m

T = 88(9.8)(0.33)/2

T = 142.296 Nm.

3 0
3 years ago
Which statement best describes the variables in a controlled experiment?
podryga [215]

control is constant for given set of readings.

set indep var

observe dep var

6 0
3 years ago
Read 2 more answers
Which statement accurately describes current electricity?
nikitadnepr [17]

Answer:

C???*

Explanation:

I forgot about this

4 0
3 years ago
Read 2 more answers
What is the symbol for momentum
Elina [12.6K]
The most common symbol for momentum is p
8 0
4 years ago
Read 2 more answers
Once a ball leaves a table at 10 m/s, how long will it take to hit the floor
Zarrin [17]

<u>Answer:</u>

The time taken for the ball to hit the floor as 1.02 seconds

<u>Explanation:</u>

As per the given question, the ball leaves at a speed from the table with an initial velocity of 10 m/s, we have the equation

\mathrm{V}_{\mathrm{f}}=\mathrm{V}_{\mathrm{i}}+\mathrm{at}

where Vf represents the final velocity

 Vi represents the initial velocity  

a represents the acceleration and

t represents the time

\mathrm{V}_{\mathrm{f}}=\mathrm{V}_{\mathrm{i}}+\mathrm{at} after rearranging

 \mathrm{t}=\frac{\mathrm{vf}-\mathrm{vi}}{a}

  \mathrm{t}=\frac{0-10}{9.8}  = 1.022 seconds

6 0
4 years ago
Other questions:
  • An opera singer in a convertible sings a note at 600 Hz while cruising down the highway at 90km/hr. What is the frequency heard
    5·1 answer
  • Tierra is playing in her backyard when she hears her friend calling out to her. She can't see her friend but can hear her friend
    10·2 answers
  • A suspect is leading the police on a car chase. The officer reports that the suspect is traveling north at 100 miles per hour. T
    12·2 answers
  • a total 54.0 joules of heat are absorbed as 58.3 g of lead is heated from 12.0 to 42.0. From these data what is the specific hea
    13·2 answers
  • In circuit A, two resistors R1 and R2 are connected in series. In circuit B, two identical resistors are connected in parallel.
    10·1 answer
  • If object a has more mass than object b, does object a contain more matter? explain why it is so.
    9·1 answer
  • The drawing shows two boxes resting on frictionless ramps. One box is relatively light and sits on a steep ramp. The other box i
    11·1 answer
  • Malia has developed Type II Diabetes. When she eats, her body
    6·1 answer
  • Select the correct answer. An element has atomic number 10 and an atomic mass of 20. How many neutrons are in the atom of this e
    7·2 answers
  • Complete the sentence by typing the word that correctly fills the blank Fossil fuels are formed gradually over _______
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!