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
RSB [31]
3 years ago
8

It's time for Santa to deliver his presents. Assuming he delivers presents all over the world, he has to travel about 75,000,000

miles. If he travels East to West, he can use the time zones to make Christmas day last 31 hours. What speed, in miles per hour, must Santa fly to get all of his presents delivered?
Physics
1 answer:
algol133 years ago
5 0
2,419,354.8387960000
You might be interested in
In a simple machine, the energy input is 120 J. If the efficiency of the machine is 80%, calculate the energy output
pashok25 [27]

Answer:

<h2>96 Joules</h2>

Explanation:

We know that efficiency is the ratio of output power by input power. i.e. Efficiency describes the quality of machine or system how good it is.

Solution,

Energy input of system = 120 J

Efficiency = 80% = \frac{80}{100}  = 0.8

Now,

According to definition,

Efficiency = \frac{output}{input}

Cross multiplication:

output \:  =  \: 0.8 \times 120

Calculate the product

output \:  = 96 \: joules

Hope this helps...

Good luck on your assignment...

4 0
3 years ago
What is Wave motion<br> las ondas fisica <br> movimiento ondulatorio
PIT_PIT [208]

Answer:

Most familiar are surface waves on water, but both sound and light travel as wavelike disturbances, and the motion of all subatomic particles exhibits wavelike properties

Explanation:

8 0
3 years ago
Samantha is checking the weather for her upcoming trip to Mexico City. The weather forecast predicts a high-pressure system for
Zanzabum

Calm, sunny days with wind moving away from the center.

5 0
3 years ago
Read 2 more answers
A ball is dropped from an upper floor, some unknown distance above your apartment. As you look out of your window, which is 1.50
laila [671]

Answer:

The ball is dropped at a height of 9.71 m above the top of the window.

Explanation:

<u>Given:</u>

  • Height of the window=1.5 m
  • Time taken by ball to cover the window height=0.15

Now using equation of motion in one dimension we have

s=ut+\dfrac{at^2}{2}

Let u be the velocity of the ball when it reaches the top of the window

then

1.5=0.15u+\dfrac{9.8\times0.15^2}{2}\\u=3.96\ \rm m/s\\

Now u is the final velocity of the ball with respect to the top of the building

so let t be the time taken for it to reach the top of the window with this velocity

3.96=gt\\t=0.4\ \rm s\\

Let h be the height above the top of the window

h=\dfrac{gt^2}{2}\\\\h=\dfrac{9.8\times 0.4^2}{2}\\h=9.71\ \rm m

3 0
3 years ago
What is the temperature 32 degrees Fahrenheit in degrees Celsius? A. 0°C B. 20°C C. 10°C D. –10°C
omeli [17]
The answer would 0. The reasoning of this is because freezing point in celsius is always 0 degrees but in fahrenheit the freezing point is 32 degrees.
8 0
3 years ago
Other questions:
  • A rowboat has a momentum of 241.5 kg*m/s. if the rowboat has a mass of 115kg, what its it's speed?
    12·1 answer
  • The diagram shows light striking a pane of glass. Some of the light is reflected, and some of the light is transmitted. The lett
    12·2 answers
  • If an air traffic controller is describing the speed of an airplane as well as the direction in which it should begin its dissen
    12·1 answer
  • Two children playing on a frictionless garden gate invent a new game called "gate". The idea is that they will get on opposite s
    10·1 answer
  • A toy car goes over a small ramp at a horizontal velocity of 1.21 m/s and decelerates at 0.131 m/s2 while in the air. The total
    12·1 answer
  • Which of these things poses the greatest hazard to communications satellites? a) photons from the Sun b) solar magnetic fields c
    12·2 answers
  • Describing Free Fall What is the only force that acts on a falling body when it is in free fall?
    5·2 answers
  • You are viewing a read out of an oscilloscope that shows you when different voltages in a circuit maximize. If the period of the
    14·1 answer
  • What is the period of a 3. 98 m long pendulum? What is the period of a 99. 4 cm long pendulum?.
    15·1 answer
  • An ion is an atom that has
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!