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
Xelga [282]
3 years ago
9

A car traveling with constant speed travels 150 km in 7200 s. What is the speed of the car?

Physics
1 answer:
VLD [36.1K]3 years ago
8 0
Speed = \frac{Distance}{Time} 150 km = 150 000 m Speed = \frac{150000}{7200} Speed = 20.83 m/s, or 75.0 km/h
You might be interested in
A 50 kg object traveling at 100 m/s collides (perfectly elastic) with a 50 kg object initially at rest.
tino4ka555 [31]

Answer:

a

Explanation:

8 0
3 years ago
A child standing on a bus remains still when the bus is at rest. When the bus moves forward and then slows down, the child conti
expeople1 [14]
Newton's first law of motion
3 0
2 years ago
Read 2 more answers
24. While measuring the length of a book, the reading of the scale at one end is 5.0 cm and at the other end is 20.5
il63 [147K]

Answer:

...do

Explanation:

24. While measuring the length of a book, the reading of the scale at one end is 5.0 cm and at the other end is 20.5

cm. What is the length of the book in mm?

25. Explain the modifications

3 0
3 years ago
Can y’all help me pleaseeee
mart [117]
it would still be 5
8 0
3 years ago
Read 2 more answers
A phonograph record accelerates from rest to 28.0 rpm in 5.73 s.
Arturiano [62]

Answer:

a) \alpha=0.5117\ rad.s^{-2}

b) \theta=8.4\ rad

Explanation:

Given:

  • initial rotational speed of phonograph, \omega_i=0\ rad.s^{-1}
  • final rotational speed of phonograph, N_f=28\ rpm \Rightarrow \omega_f=2\pi\times\frac{28}{60} =2.932\ rad.s^{-1}
  • time taken for the acceleration, t=5.73\ s

a)

Now angular acceleration:

\alpha=\frac{\omega_f-\omega_i}{t}

\alpha=\frac{2.932-0}{5.73}

\alpha=0.5117\ rad.s^{-2}

b)

Using eq. of motion:

\theta=\omega_i.t+\frac{1}{2} \alpha.t^2

\theta=0+\frac{1}{2}\times 0.5117\times 5.73^2

\theta=8.4\ rad

5 0
3 years ago
Other questions:
  • What is the advantage of D-step tuning on 2020 Pathfinder’s Xtronic CVT at cruising speed?
    10·1 answer
  • The burner on a stove is 325° f. given that the burner emits electromagnetic radiation as a blackbody, what is the maximum wavel
    11·1 answer
  • 2. The viscosity of a fluid is to be measured by an viscometer constructed of two 75–cm–long concentric cylinders. The outer dia
    7·1 answer
  • Help me please, i need it fast
    6·1 answer
  • What bone cells respond to stress ?
    15·1 answer
  • A watermelon is dropped off of a 50 ft bridge, and it explodes upon impact with the ground. How fast was it traveling in mph upo
    12·1 answer
  • If I work out rotational energy to be 102.2J which equals kg.M/s^2, and I hadn't factored time into it, would that be Joules per
    10·1 answer
  • Spherical mirror is a​
    8·1 answer
  • Can someone define 'work' for me please? I looked it up but there are a lot of different answers.
    15·2 answers
  • if bananas are curved because they grow towards the sun ☀️so say if a was born towards the sun would i have been a curved baby o
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!