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
gavmur [86]
2 years ago
12

A train traveling at a constant speed covers a distance of 960 meters in 30 seconds. What is the train's speed?

Physics
2 answers:
madreJ [45]2 years ago
6 0

Answer:

32 m/sec

Explanation:

Given,

⇒ Distance that is covered= 960 meters

⇒ Time taken= 30 seconds

We know that,

⇒ Speed=\frac{distance}{time taken}

⇒ Speed =\frac{960}{30}

Therefore, speed = 32 m/sec.

balu736 [363]2 years ago
4 0

32 meters per second


You might be interested in
Calculate the intensity of current flowing through a computer that consumes 180W and operates at 120 V.
padilas [110]

Answer:

C) 1.5 A

Explanation:

P = IV

180 W = I (120 V)

I = 1.5 A

5 0
3 years ago
Ethan moves a 100 kg barrel up a 50 meter ramp. The amount of work Ethan has completed is:
Zinaida [17]

Answer:

I think C. 150 Joules

Explanation:

4 0
3 years ago
Read 2 more answers
A 2.6 kg mass attached to a light string rotates on a horizontal,
Ainat [17]

The maximum speed the mass can have before it breaks is 2.27 m/s.

The given parameters:

  • <em>maximum mass the string can support before breaking, m = 17.9 kg</em>
  • <em>radius of the circle, r = 0.525 m</em>

The maximum speed the mass can have before it breaks is calculated as follows;

T = ma_c\\\\Mg = \frac{Mv^2}{r} \\\\v^2 = rg\\\\v = \sqrt{rg} \\\\v_{max} = \sqrt{0.525 \times 9.8} \\\\v_{max} = 2.27 \ m/s

Thus, the maximum speed the mass can have before it breaks is 2.27 m/s.

Learn more about maximum speed of horizontal circle here:brainly.com/question/21971127

8 0
2 years ago
A thin-walled cylindrical pressure vessel is subjected to an internal gauge pressure, p=75 psip=75 psi. It had a wall thickness
Mekhanik [1.2K]

To solve this problem we must apply the concept related to the longitudinal effort and the effort of the hoop. The effort of the hoop is given as

\sigma_h = \frac{Pd}{2t}

Here,

P = Pressure

d = Diameter

t = Thickness

At the same time the longitudinal stress is given as,

\sigma_l = \frac{Pd}{4t}

The letters have the same meaning as before.

Then he hoop stress would be,

\sigma_h = \frac{Pd}{2t}

\sigma_h = \frac{75 \times 8}{2\times 0.25}

\sigma_h = 1200psi

And the longitudinal stress would be

\sigma_l = \frac{Pd}{4t}

\sigma_l = \frac{75\times 8}{4\times 0.25}

\sigma_l = 600Psi

The Mohr's circle is attached in a image to find the maximum shear stress, which is given as

\tau_{max} = \frac{\sigma_h}{2}

\tau_{max} = \frac{1200}{2}

\tau_{max} = 600Psi

Therefore the maximum shear stress in the pressure vessel when it is subjected to this pressure is 600Psi

6 0
3 years ago
Students will explain, distinguish the difference between the 4 states of matter
vitfil [10]
What?                                what what what what
7 0
3 years ago
Other questions:
  • Moore said there are two electrons in the first shell then how many electrons would there be in the first shell of an atom of th
    5·1 answer
  • At what altitude above the earth's surface would the acceleration due to gravity be 4.9 m/s^2? Assume the mean radius of the ear
    14·1 answer
  • How many significant figures are in 50.5?
    8·1 answer
  • What is the difference between living, nonliving, and dead
    11·1 answer
  • Scientists might model the water cycle by using a diagram. What are two
    13·1 answer
  • Electric forces stay the same as distance changes electric field change true or false
    11·1 answer
  • g the space in between two glass sheets has a volume of 0.025 m3. If the temperature of the gas is 290 K, what is the rms speed
    15·1 answer
  • Think about the mice shown below. Using the space below numbered 1, describe what is happening from figure 1 to 3.​
    10·1 answer
  • HELP DUE IN 5 How does a battery supply energy to a circuit?
    10·1 answer
  • What is the density of a liquid that measures as 2 liters, and has a mass of 0.7 kilograms?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!