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
Doss [256]
3 years ago
12

A helicopter’s speed increases from 30 m/s to 40 m/s in 5 seconds.

Physics
2 answers:
ANEK [815]3 years ago
6 0
So, acceleration is the change of velocity in time. If no vectors are used, one can use speed:

a = (final speed - start peed)/ time = 10/5= 1 m/s^2,

Notice that the units are m/s^2, or (m/s)/s. That is speed (m/s) per unit time (s)
MariettaO [177]3 years ago
4 0

its 2 meters per sec

You might be interested in
PLS HELP DUE AT 10 PM
Rina8888 [55]
I believe it is C hope i helped!
6 0
3 years ago
Read 2 more answers
What is Nuclear energy
Yuliya22 [10]

Answer:

Nuclear energy is that released by dividing the nuclei of heavy atoms (also called under the name Nuclear Fission)

Explanation:

In this process, a large amount of heat is generated that can be used to obtain mechanical energy, which is used to generate electrical energy.

Nuclear energy is a sustainable source of energy having a low impact on the environment.

3 0
3 years ago
On the kelvin scale what is the freezing point of water
Alla [95]
Freezing point of the water is known as 273 K

Hope this helps!
8 0
3 years ago
If you make multiple measurements of your height, you are likely to find that the results vary by nearly half an inch in either
Lisa [10]

Answer:

Height h= 1.7 m

Explanation:

Supposing we have to find height in meter.

1 feet = 0.3048 m

1 inch = 0.0254 m

Given that:

5 feet

= 5×0.3048

= 1.524 m

and 7 inch = 7×0.0254= 0.1778 m

Therefore total height of a man in meter

5 feet 7 inch = 1.5424+0.1778 =1.7 m

Height h= 1.7 m

8 0
3 years ago
The force of Earth's gravity on a capsule in space will lessen as it moves farther away. If the capsule moves to twice its dista
Bess [88]

Answer: One quarter of the force

Explanation:

According to Newton's law of Gravitation, the force F exerted between two bodies of masses m1 and m2  and separated by a distance r  is equal to the product of their masses and inversely proportional to the square of the distance:

F=G\frac{(m1)(m2)}{r^2}    (1)

Where Gis the gravitational constant

This means that the gravity force decreases when the distance between these two bodies increases.

In this context, if the distance between the capsule and the Earth increases twice, the new distance will be 2r.

Substituting this distance in (1):

F=G\frac{(m1)(m2)}{(2r)^2}    (2)

F=G\frac{(m1)(m2)}{4r^2}    

<u>Finally:</u>

F=\frac{1}{4}G\frac{(m1)(m2)}{r^2} >>>This means the force toward Earth becomes one quarter "weaker"

3 0
3 years ago
Other questions:
  • A train moving west with an initial velocity of 20 m/s accelerates at 4 m/s2 for 10 seconds. During this time, the train moves a
    13·2 answers
  • What are dot diagrams in Physical Science?​
    11·1 answer
  • mass and weight are similar, but not the same thing. In which of the following examples would the objects weight change, but mas
    8·1 answer
  • An inclined plane allows you to do ________ work with ________ force.
    8·2 answers
  • A cross-country skier moves 36 meters eastward, then 44
    7·1 answer
  • Help me please!!!!!!!!!!!!!/ Science
    7·1 answer
  • Which of the following is a unit of volume in the English system of measurement? (4 points)
    8·2 answers
  • You and a friend both leave the same restaurant to drive home. You are heading directly west at 30 miles per hour and he or she
    8·2 answers
  • Two point charges, initially 3 cm apart, are moved to a distance of 1 cm apart. By what factor does the resulting electric force
    6·1 answer
  • 1.) Rn-222 decays from 400 grams to 6.25 grams in 240 minutes. How long is one “half-life.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!