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
qwelly [4]
3 years ago
6

A rocket moves upward, starting from rest with an acceleration of +30.0 m/s2 for 5.00 s. It runs out of fuel at the end of this

5.00 s and continues to move upward. How high does it rise? m
Physics
1 answer:
olchik [2.2K]3 years ago
7 0

Answer:

The distance covered by the rocket after fuel ran out is 3442.04 m

Explanation:

Given that the rocket moves with an acceleration a=30m/s^2

time t=5 s

Since the rocket starts from rest initial velocity  u=0 s

The distance it travelled within this time is given by  s=ut+ \frac{1}{2} at^2                                                                                                  =0 \times 5+ \frac{1}{2} (30\times25)=375 m

Velocity at this point is given by v=u+at

v=0+30\times5=150m/s

Given that at this height it runs out of fuel but travels further. Here final velocity v=0(maximum height), initial velocityu=150 m/s  and time to zero velocity t=\frac{v}{g} = \frac{150}{9.8} =15.3 s.

Thus it travels 15.3 seconds more after fuel running out. The distance covered during this period is given

s= ut+\frac{1}{2} gt^2=150 \times 15.3+1/2 \times9.8 \times 15.3^2=3442.04 m

You might be interested in
A dumbbell-shaped object is composed by two equal masses, m, connected by a rod of negligible mass and length r. If I_1 is the m
Paraphin [41]

Answer:

I2>I1

Explanation:

This problem can be solved by using the parallel axis theorem. If the axis of rotation of a rigid body (with moment of inertia I1 at its center of mass) is changed, then, the new moment of inertia is gven by:

I_2=I_{1}+Md^2

where M is the mass of the object and d is the distance of the new axis to the axis of the center of mass.

It is clear that I2 is greater than I1 by the contribution of the term Md^2.

I2>I1

hope this helps!!

8 0
3 years ago
A box is pulled 6 meters across the ground at a constant velocity by a horizontally applied force of 50 newtons. At the same tim
Vikentia [17]

Answer:

(a) Friction force = 50 N

(b) Work done by friction = 300 j

(c) Net work done = 0 j

Explanation:

We have given that the box is pulled by 6 meter so d = 6 m

Force applied on the box F = 60 N

We have have given that velocity is constant so acceleration will be zero

So to applied force will be utilized in balancing the friction force

So friction force F_{friction}=50N

Work done by friction force W_{friction}=F_{friction}\times d=50\times 6=300j

Work done by applied force W=F\times d=50\times 6=300j

So net work done = 300-300 = 0 j

7 0
3 years ago
How should a scientist confirm that an experiment has good data
r-ruslan [8.4K]
Repeat the experiment to make sure it gives the same results.

Hope i helped ; )
4 0
3 years ago
Read 2 more answers
two object gravitationally attract with a force of 20N.if the distance between the two object centers is doubled, then what is t
Usimov [2.4K]
Gravity decreases with the square of the distance, so the new force is (20)/(2*2) = 5N.
8 0
3 years ago
What are the reactants of cellular respiration? Check all that apply. carbon dioxide energy glucose oxygen water
Rufina [12.5K]

Answer:

Glucose and Oxygen

Explanation:

Cellular respiration is the process whereby cells derives energy by the use of glucose and oxygen.

Organisms that use cellular respiration to produce their energy are known as heterotophs. They derive the glucose from food materials obtained from plant sources. They use the oxygen from the environment to liberate energy from the glucose obtained from feeding on plant materials.

Cellular respiration can be simply expressed as shown below:

GLUCOSE + OXYGEN → CO₂ + H₂O + ATP

The reactants are glucose and oxygen.

The products are CO₂, water and ATP

7 0
3 years ago
Read 2 more answers
Other questions:
  • PLEASE HELP WILL GIVE BRAINLESS ANSWER
    15·1 answer
  • What is the low end of the range of surface temperature of white stars
    7·1 answer
  • Put the following stages of star formation into the proper sequence from earliest to latest:
    14·1 answer
  • Which of the following types of waves carries the most energy?
    9·2 answers
  • What type of em wave travels the fastest?
    7·1 answer
  • Greek philosophers such as Demoncritus and Aristotle had ideas about the composition of matter. For example, Demoncritus believe
    8·1 answer
  • Car sitting on a drive way is that an kinetic or potential energy​
    11·1 answer
  • The waves produced on the earth’s surface is called
    7·2 answers
  • A practical machine cannot be 100% efficient? <br>please give me the answer.​
    11·2 answers
  • a 1 kg ball is confined to move on a. vertical circle of a radius 2 meters. There is no friciton between the bead and the circul
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!