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
Gekata [30.6K]
3 years ago
9

1. A boat initially moving at 10 m/s accelerates at 2 m/s2 for 10 s. What is the velocity of the boat after 10 seconds?​

Physics
1 answer:
DIA [1.3K]3 years ago
5 0

Answer:

5 m/s is the answer so yeah

You might be interested in
Gravity causes___ objects to accelerate
kolbaska11 [484]
Gravity causes falling objects to accelerate.
4 0
4 years ago
Read 2 more answers
Mr. White claims that he invented a heat engine with a maximum efficiency of 90%. He measured the temperature of the hot reservo
Studentka2010 [4]

Answer:

The error he made was that he didn't convert the unit of temperature to Kelvin.

The correct efficiency is 24%

Explanation:

Parameters given:

Temperature of hot reservoir = 100°C = 373 K

Temperature of cold reservoir = 10°C = 273 K

The efficiency of a heat engine is given as:

E = 1 - (Qc/Qh) = 1 - (Tc/Th)

Where

Qc = Output heat;

Qh = Input heat;

Tc = Temperature of the cold reservoir;

Th = Temperature of the hot reservoir.

=> E = 1 - (283/373)

E = 1 - 0.76

E = 0.24

In percentage,

E = 0.24 * 100 = 24%

Hence, the efficiency of the engine is actually 24%.

The error he made was that he didn't convert the temperature to Kelvin. If we leave the temperatures in °C, we have that:

E = 1 - (10/100)

E = 1 - 0.1 = 0.9

In percentage,

E = 0.9 * 100 = 90%

7 0
3 years ago
How to delete a question from brainly
Minchanka [31]
You have to go to settings and there will be options im guessing!
3 0
3 years ago
Read 2 more answers
For each question, select the right answer from the choices below:
Leni [432]

Option (ii) B is the correct option. The object on the moon has greater mass.

To resolve this, utilize the formulas Force = Mass * Acceleration.

The equation can be used to find the mass given the force in Newtons, using 9.8 m/s² for the acceleration of gravity of the earth and 1.6 m/s² for the moon.

Calculating the mass on earth:

30 N = 9.8 m/s² * mass

This results in a mass of 3.0 kg for the object on Earth.

Calculating the mass of the moon:

30 N = 1.6 m/s²2 * mass

Thus, the moon's object has a mass of 19. kg.

This can be explained by the fact that the earth has a stronger gravitational pull than the moon, producing more force per kilogram of mass. As a result, the moon's mass must be bigger to produce the same amount of force at a lower acceleration from gravity (1.6 m/s² vs. 9.8 m/s²).

To know more about Mass, refer to this link :

brainly.com/question/13386792

#SPJ9

3 0
1 year ago
Which of the following will be attracted to the north pole of a magnet?
tangare [24]
The answer is A. The South Pole of another magnet. I hope this helps
4 0
3 years ago
Read 2 more answers
Other questions:
  • Water moves through a constricted pipe in steady, ideal flow. At the
    5·1 answer
  • A scientific theory _______.
    13·2 answers
  • Lemon trees receiving the most water produced the most lemons. What is the independent variable, the dependent variable, and the
    5·1 answer
  • An inverted image of an object is viewed on a screen from the side facing a converging lens. An opaque card is then introduced c
    6·1 answer
  • If there is an unusually windy month one might anticipate a. Higher tides b.increased wave size c. Unpredictable currents d. Low
    8·1 answer
  • A 2.26 kg book is dropped from a height of 1.5 m. What is its acceleration?
    7·1 answer
  • the modern periodic law, according to Moseley, classifies elements based on arranging elements in ___ order
    15·1 answer
  • Suppose two comets, comet A and comet B, were orbiting the Sun, having the same average orbital radii. If comet A had a higher e
    5·1 answer
  • A rescue plane spots a survivor 132 m directly below and releases an emergency kit with a parachute. If the package descends at
    6·1 answer
  • 1.Compare why does things look different under water vs how light rays appear to bend
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!