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
marin [14]
3 years ago
9

A football coach starts at the 50-yard line (a) and walks to the 10-yard line (b) he turns around and walks to the 40-yard line

(c) he turns around again and walks back to the 0-yard line (d) he turns around once more and walks back to the the 30-yard line
Physics
1 answer:
olga2289 [7]3 years ago
8 0
Ndjsjaiaowooaosoosospss
You might be interested in
I WILL GIVE BRAINLIEST TO WHOEVER IS CORRECT.
Tems11 [23]
Ultraviolet light with a wavelength shorter than visible light and a higher radiant energy than visible light.

The shorter the wavelength, the higher the frequency and energy.
6 0
3 years ago
Read 2 more answers
A 75-g bullet is fired from a rifle having a barrel 0.540 m long. Choose the origin to be at the location where the bullet begin
Mashutka [201]

The given question is incomplete. The complete question is as follows.

A 75-g bullet is fired from a rifle having a barrel 0.540 m long. Choose the origin to be at the location where the bullet begins to move. Then the force (in newtons) exerted by the expanding gas on the bullet is 14,000 + 10,000x − 26,000x^{2}, where x is in meters. Determine the work done by the gas on the bullet as the bullet travels the length of the barrel.

Explanation:

We will calculate the work done as follows.

     W = \int_{0}^{0.54} F dx

         = \int_{0}^{0.54} (14,000 + 10,000x - 26,000x^{2}) dx

         = [14000x + 5000x^{2} - 8666.7x^{3}]^{0.54}_{0}

         = 7560 + 1458 - 1364.69

         = 7653.31 J

or,      = 7.65 kJ       (as 1 kJ = 1000 J)

Thus, we can conclude that the work done by the gas on the bullet as the bullet travels the length of the barrel is 7.65 kJ.

5 0
3 years ago
Which of the following are NOT properties of bases?
mafiozo [28]
You should check A, and D.
8 0
3 years ago
Read 2 more answers
Which scientist contributed to disproving spontaneous generation?
kompoz [17]

Answer:

A. John Tyndall

Explanation:

In 1887, John Tyndall confirmed the theory of <u>biogenesis</u>, formulated by Luis Pasteur in 1864, applying sterilization by <u>discontinuous heating</u>, a process that is currently known as tyndalization. Evidence of the existence of resting microbacterial forms, very resistant to heat.

Thanks to this demonstration he is recognized as the <em>father of microbiology</em> with Pasteur. The theory brought down the previous idea of ​​the Spontaneous Generation, which remained in force since 1745.

5 0
3 years ago
What part of an electrical circuit is intended to limit the<br> maximum current through the circuit?
stepladder [879]

Answer:The charge passing through the circuit always passes through an appliance (which acts as a resistor) or through another resistor, which limits the amount of current that can flow through a circuit. Appliances are designed to keep current at a relatively low level for safety purposes.

Explanation:

4 0
2 years ago
Other questions:
  • I need to know number 10
    9·1 answer
  • A scientist pours 0.120 L of solution A into an Erlenmeyer flask. She adds 2.345 L of solution B. How many significant figures a
    6·1 answer
  • The ratio of output force is the what of a machine
    10·1 answer
  • what is the mass of an object that is experiencing a net force of 200N and an acceleration of 500m/s2​
    11·1 answer
  • What unita are used to measure electrical current​
    8·2 answers
  • A flowerpot that has a mass of 1.5 kg is sitting on a windowsill 30 meters from the ground. Is the energy of the flowerpot poten
    13·1 answer
  • Which statement explains how it is possible to carry books to school without changing the kinetic or potential energy of the boo
    12·1 answer
  • Andy has two samples of liquids. Sample A has a pH of 4, and sample B has a pH of 6. What can Andy conclude about these two samp
    8·1 answer
  • What TWO things do all vectors have?
    12·2 answers
  • An electric drill rated at 400 W is connected to a 240V power line. How much current does it draw?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!