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
Rina8888 [55]
3 years ago
12

Does a sled have inertia while sitting still

Physics
1 answer:
madam [21]3 years ago
7 0

Answer:

Yes, a sled has inertia while sitting still.

Explanation:

From Newton's law of inertia, an object at rest will remain at rest unless it is acted upon by an external force. The reason the object will remain at rest unless an external force acts is because of inertia. Inertia means the resistance of an object to motion.

Thus, a sled hammer at rest will remain at rest unless it is acted upon by an external force. So we can conclude that it has Inertia.

You might be interested in
The moon is always circling around the earth, in a stable orbit. This movement is the reason we see the different phases of the
Darina [25.2K]
The answer would be B. This is because all planets in our galaxy orbit the sun.
3 0
3 years ago
What is the pooled variance for the following two samples?
Snowcat [4.5K]
I think it is B as 168/20
4 0
3 years ago
6. What is the change in temperature of a metal rod that is 55.0 cm long, decreases length by 0.20 cm, and that has a coefficien
MrMuchimi

Explanation:

We have,

Length of a metal rod is 55 cm or 0.55 m

Change in length is 0.2 cm or 0.002 m

It is required to find the change in temperature of a metal rod. The coefficient of linear expansion is given by :

\alpha =\dfrac{\Delta L}{L_0\Delta T}

\Delta T is the change in temperature

\Delta T =\dfrac{\Delta L}{L_0\alpha }\\\\\Delta T =\dfrac{0.002}{0.55\times 12\times 10^{-6}}\\\\\Delta T= 303.03^{\circ} C

So, the change in temperature is 303.03 degrees Celsius.

4 0
3 years ago
If a car travels around a gentle curve on a highway at 60 km/h, does the velocity change
Oksi-84 [34.3K]
Yes the velocity changes. Because velocity changes with direction. The object is moving around a gentle curve. The curve is not linear it is curve the direction changes a bit so obviously the velocity also changes but not much. Juts a minor change. Depends on how much curve the highway is.
4 0
3 years ago
Problem 12: A 20.0-m tall hollow aluminum flagpole is equivalent in strength to a solid cylinder 4.00 cm in diameter. A strong w
avanturin [10]

Answer:

The deformation in the pole due to force is 0.70 mm.

Explanation:

Given that,

Height = 20.0 m

Diameter = 4.00 cm

Force = 1100 N

We need to calculate the  area

Using formula of area

A=\pi\times r^2

A=\pi\times(2.00\times10^{-2})^2

A=0.00125\ m^2

A=1.25\times10^{-3}\ m^2

We need to calculate the deformation

Using formula of deformation

\Delta x=\dfrac{1}{s}(\dfrac{F}{A}\times L)

Where, s = shear modulus

F = force

l = length

A = area

Put the value into the formula

\Delta x=\dfrac{1}{2.5\times10^{10}}\times(\dfrac{1100}{1.25\times10^{-3}}\times 20.0)

\Delta x=0.000704\ m

\Delta x=7.04\times10^{-4}\ m

\DElta x=0.70\ mm

Hence, The deformation in the pole due to force is 0.70 mm.

3 0
3 years ago
Other questions:
  • Jim Abbott was drafted ________ overall in the first round of the 1989 draft.
    6·2 answers
  • Which parameter of glass is measured with bromoform and bromobenzene mixtures in a column?
    8·2 answers
  • Calculate the Schwarzschild radius (in kilometers) for each of the following.1.) A 1 ×108MSun black hole in the center of a quas
    5·1 answer
  • Point charge q1 of 30 nC is separated by 50 cm from point charge q2 of -45 nC. As shown in the diagram, point a is located 30 cm
    15·1 answer
  • Four identical metallic spheres with charges of 2.2 µC, 4.2 µC, −7.4 µC, and −6.8 µC are placed on a piece of paper. The paper i
    13·1 answer
  • You are designing a system for moving aluminum cylinders from the ground to a loading dock. You use a sturdy wooden ramp that is
    15·1 answer
  • Identify the independent, dependent, and constant variables for different experiments.
    9·1 answer
  • Một dây nhôm dài 10 m khi ở 25 độ C. Biết khi nhiệt độ tăng thêm 1 độ C thì chiều dài 1m dây nhôm sẽ tăng thêm 0,024mm.
    11·1 answer
  • Long flights at midlatitudes in the Northern Hemisphere encounter the jet stream, an eastward airflow that can affect a plane’s
    5·1 answer
  • . Một con lắc đơn có chiều dài dây treo 1m dao động điều hoà treo trong một xe chạy trên mặt phẳng nghiêng
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!