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
Fiesta28 [93]
3 years ago
5

A cattle train left Miami and traveled toward New York. 14 hours later a diesel train left traveling at 45 km/h in an effort to

catch up to the cattle train. After traveling for four hours the diesel train finally caught up. What was the cattle train's average speed?
Physics
1 answer:
PSYCHO15rus [73]3 years ago
7 0

Answer:

The cattle train´s average speed was 10 km/h.

Explanation:

Hi there!

The traveled distance of the trains can be calculated using this equation:

d = v · t

Where:

d = traveled distance.

v = velocity of the train.

t = time.

The diesel train travels 4 hours at 45 km/h, then, the traveled distance will be:

d = 45 km/h · 4 h = 180 km

Because the diesel train catches the cattle train after traveling 180 km, this will also be the distance traveled by the cattle train. But it took the cattle train (14 h + 4 h) 18 hours to travel that distance. Then, using the equation of distance:

d = v · t

180 km = v · 18 h

180 km/ 18 h = v

10 km /h = v

The cattle train´s average speed was 10 km/h

Have a nice day!

You might be interested in
If you weigh 637 N on Earth's surface, how much would you weigh on the planet Mars?
vivado [14]

Answer:

To get your answer multiply 637N by 10N/kg to get 6370kg

4 0
2 years ago
4. The nucleus of an isotope differs in the number of
solong [7]

Answer: A plz brainliest me

An isotope is one of two or more forms of the same chemical element. Different isotopes of an element have the same number of protons in the nucleus, giving them the same atomic number, but a different number of neutrons giving each elemental isotope a different atomic weight.

Explanation:

5 0
3 years ago
Currents in dc transmission lines can be 100 A or higher. Some people are concerned that the electromagnetic fields from such li
lozanna [386]

Answer: 4.50*10^-6T (0.00000450071T)

Explanation: A current carrying conductor has been knowing to generate a specific amount of magnetic field.

This is given by the Bio-savart law (mathematical).

The Bio-savart law is a mathematical equation that gives the value of strength of the magnetic field created by a current carrying conductor.

B=(Uo* I) /2πr

Where

B= strength of magnetic field

Uo = magnetic permeability in free space = 1.257 *10^-6

r = distance between current carrying conductor and any reference point.

By doing the neccesary algebra, we have

B=(1.257 *10^-6 * 180)/ (2 * 3.142 * 8)

B= 2.2626 *10^-4 / 50.2857

B=4.5 * 10^-6T (0.00000450071T)

6 0
2 years ago
charles law states that at a constant pressure , the volume of a given amount of gas is _____ to its absolute temperature.
IRINA_888 [86]

CHARLES'S LAW

At a constant pressure, the volume of a given amount of gas is directly proportional to its absolute temperature.

8 0
2 years ago
Read 2 more answers
A heavy box is in the back of a truck. the truck is accelerating to the right. apply your analysis to the box.a) draw a motion d
Andru [333]

Explanation :

It is given that, a heavy box is in the back of a truck and the truck is accelerating to the right.

The description is shown in<em> figure 1</em>. Here, the forces that act on both box and the truck are the normal force, the frictional force and their weight mg.

The free body diagram is shown in <em>figure 2</em>. This shows the total forces            ( F = ma )acting on the truck. As a result, the truck will move in a forward direction.

Hence, this is the required explanation.

5 0
2 years ago
Read 2 more answers
Other questions:
  • Does the speedometer of a car read average speed or instantaneous speed?
    14·1 answer
  • What is E=m² the famous theory of albert einstien?
    12·2 answers
  • When a sound wave encounters a barrier, what happens?
    8·1 answer
  • The relationship between sharks and remoras is characterized<br><br>TRUE <br>   OR<br>FALSE
    13·1 answer
  • When a certain string is clamped at both ends, the lowest four resonant frequencies are 50, 100, 150, and 200 Hz. When the strin
    14·1 answer
  • Explain why some objects fall faster than other objects,
    12·1 answer
  • What is the minimum force required to increase the energy of a car by 69 J over a distance of 42 m? Assume the force is constant
    12·1 answer
  • If an amount of heat Q is needed to increase the temperature of a solid metal sphere of diameter D from 4°C to 7°C, the amount o
    14·1 answer
  • EXPLAIN THE WORKING OF A HYDRAULIC BRAKE
    11·1 answer
  • I need help with problem C, finding the area of the accel. v time graph
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!