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
Ratling [72]
3 years ago
9

How much work is required to make a 1400 kg car increase its speed from 10 m/s to 20 m/s?

Physics
1 answer:
andrew11 [14]3 years ago
6 0
Sbbxnd xj cbc a xnbxhznxbxjzbbzjz. hzbzbzihzh. jzbzjzb
You might be interested in
A Or b <br> Question in picture
Helen [10]

Answer:

the answer to the question is indeed B

5 0
3 years ago
Read 2 more answers
Even when shut down after a period of normal use, a large commercial nuclear reactor transfers thermal energy at the rate of 150
Sever21 [200]

Answer:2.89\approx 2.9^{\circ}C/s

Explanation:

Given

Power\left ( P\right )=150 MW

mass of core\left ( m\right )=1.60\times 10^5 kg

Average specific heat \left ( C\right )=0.3349 KJ/kg^{\circ}C

And rate of increase of temperature =\frac{\mathrm{d}T}{\mathrm{d} t}

Now

P=mc\frac{\mathrm{d}T}{\mathrm{d} t}

150\times 10^6=1.60\times 10^5\times 0.3349\times \frac{\mathrm{d}T}{\mathrm{d} t}

Thus \frac{\mathrm{d}T}{\mathrm{d} t}=[tex]\frac{1.60\times 10^5\times 0.3349}{150\times 10^6}

\frac{\mathrm{d}T}{\mathrm{d} t}=2.89\approx 2.9^{\circ}C/s

6 0
3 years ago
A missile is fired from a jet flying horizontally at Mach 1 (1100 ft/s). The missile has a horizontal acceleration of 1000 ft/s2
nadezda [96]
Answer: 11,100 ft/s^2

1) Constant acceleration=> uniformly accelerated motion.

2)  Formula for uniformly accelerated motion:

Vf = Vo + at

3) Data:

Vo = 1,100 ft/s
a = 1,000 ft/s^2
t = 10.0 s

4) Solution:

Vf = 1,100 ft/s + 1,000 ft/s^2 * 10.0 s = 1,100 ft/s + 10,000 ft/s

Vf = 11,100 ft/s

6 0
3 years ago
Read 2 more answers
Two tuning forks produce sounds of wavelengths of 3.4 meters and 3.3 meters.
KengaRu [80]

Answer:

Explanation:

wavelength, λ = 3.4 m

wavelength, λ' = 3.3 m

Speed, v = 340 m/s

f = v / λ = 340 / 3.4 = 100 Hz

f' = v / λ' = 340 / 3.3 = 103.03 Hz

Frequency of beat, n = f' - f = 103.03 - 100 = 3.03 Hz

5 0
3 years ago
What is the explanation for the fact that the desert sand is very hot in the day and very cool at night? 1. Sand reflects light
zepelin [54]
3. Sand has a low specific heat compared to air
5 0
2 years ago
Other questions:
  • The boom of a fire truck raises a fireman (and his equipment – total weight 280 lbs) 60 ft into the air to fight a building fire
    6·1 answer
  • Which one of the following statements concerning momentum is true? Group of answer choices Momentum is a force. Momentum is a sc
    9·1 answer
  • Difference between impulse and impulsive force
    11·2 answers
  • An element has 4 protons, 5 neutrons, and 4 electrons. What is the atomic mass of the element
    15·1 answer
  • Which is more expensive to create coal or solar power
    15·1 answer
  • The buildup of charges on an object is called
    10·2 answers
  • What causes standing wave?
    6·1 answer
  • True or false the sun produces energy through nuclear fusion
    13·2 answers
  • HELP MEEEE!!!!!
    6·1 answer
  • A stationary body is acted upon by a number of forces. State the two conditions which must apply for the body to remain at rest.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!