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
fenix001 [56]
3 years ago
14

Suppose that at room temperature, a certain aluminum bar is 1.0000 m long. The bar gets longer when its temperature is raised. T

he length l of the bar obeys the following relation: l=1.0000+2.4×10−5T, where T is the number of degrees Celsius above room temperature. What is the change of the bar's length if the temperature is raised to 14.1 ∘C above room temperature?
Physics
1 answer:
Deffense [45]3 years ago
4 0

Answer:

0.00034 m

Explanation:

Since the length of the aluminium bar, L is given by , L = 1.0000 + 2.4 × 10⁻⁵T and T = 14.1°C, we substitute the value of T into L. So, we have L = 1.0000 + 2.4 × 10⁻⁵ × 14.1°C = 1.0000 + 0.0003384 = 1.0003384 m. The change in length is thus 1.0003384 - 1.0000 = 0.0003384 m ≅ 0.00034 m

You might be interested in
Red shift data shows that galaxies are O expanding O shrinking O moving away O moving closer
Anon25 [30]

Answer:

Should be moving away

Explanation:

Red is a longer wavelength therefore further away. Wavelength is stretched out more and on the red end. I hope this is right. I decided to research and answer since you didn’t have other answers. Are you taking this on edg? I hope I helped!

7 0
3 years ago
slader A jet is circling an airport control tower at a distance of 15.9 km. An observer in the tower watches the jet cross in fr
liubo4ka [24]

Answer:

y = 138.96 m

Explanation:

The angle subtended by the moon is the mean of the angle of the arc between the two most extreme points of the moon, we can see that the angle is very small, so we can approximate this arc to a straight line and then use the trigonometric relationships

         sin θ = y / L

where L = 15.9 10³ m and θ = 8.74 10⁻³ rad

          y = L sin θ

          y = 15.9 10³ sin (8.74 10⁻³)

         y = 15.9 10³    0.0087399

         y = 138.96 m

4 0
2 years ago
Which of the following is the tendency of an object to maintain its state of
densk [106]

Answer:

O inertia

Explanation:

The tendency of a body to maintain its state of motion is inertia.

Inertia is the tendency of a body to remain at rest or in constant motion.

  • According to newtons first law of motion "a body will remain in its state of rest or constant motion unless acted upon by an external force".
  • The tendency of the body to remain in a state of rest or of constant motion is the inertia.
  • Such a body will not want to accelerate or change motion.
7 0
3 years ago
Multiple-Concept Example 6 reviews the concepts that play a role in this problem. A diver springs upward with an initial speed o
adell [148]

Answer:

Part a)

v_f = 7.99 m/s

Part b)

y = 3.25 m

Explanation:

Part a)

Since the diver is moving under gravity

so here its acceleration due to gravity will be uniform throughout the motion

so here we will have

v_f^2 - v_i^2 = 2 a y

here we have

v_i = 2.22 m/s

y = -3 m

v_f^2 - (2.22)^2 = 2(-9.81)(-3)

v_f = 7.99 m/s

Part b)

at highest point of his motion the final speed will be zero

so we will have

v_f^2 - v_i^2 = 2 a (\Delta y)

0 - 2.22^2 = 2(-9.81)(y - 3)

y = 3.25 m

7 0
3 years ago
An empty can of soda is yeeted (thrown) into a crowd. Then, a full can of soda is yeeted into a crowd. Throwing the full can too
4vir4ik [10]

Answer:

Newton's third law of motion.

Explanation:

We are told the force needed to throw the full soda can was more than that needed to throw the empty can.

Now, the weight of the full soda can will be more than that of the empty can. Therefore, the full can will demand more force than that of the empty can due to Newton's third law of motion which states that to every action, there is an equal and opposite reaction.

3 0
2 years ago
Other questions:
  • If the diameter of the red marble is 3.0 cm, and by using the formula for volume, what is a good approximation of its volume? cm
    14·1 answer
  • When light enters a piece of glass from air with an angle of θ with respect to the normal to the boundary surface?
    5·1 answer
  • The region where warm and cold air masses meet
    8·2 answers
  • During a tennis serve, a racket is given an angular acceleration of magnitude 150 rad/s^2. At the top of the serve, the racket h
    6·1 answer
  • What’s contact force ?
    7·2 answers
  • How would you classify the wave?
    6·2 answers
  • Monochromatic light of variable wavelength is incident normally on a thin sheet of plastic film in air. The reflected light is a
    10·1 answer
  • Two cars are traveling along a straight line in the same direction, the lead car at 25 m/s and the other car at 35 m/s. At the m
    11·1 answer
  • Explain how conduction, convection, and radiation occur involving a campfire
    9·1 answer
  • An object completes 50 cycles in 150 s.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!