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
Ksivusya [100]
2 years ago
14

How to find volocity

Physics
1 answer:
horrorfan [7]2 years ago
5 0

Explanation:

you need to divide rhe change un position by the change in time

You might be interested in
Biological dad means ​
inna [77]

Answer:

Your real dad according to Science and your DNA codes.

7 0
2 years ago
Read 2 more answers
Two cars leave Calgary at the same time, travelling in opposite directions. Their average speeds differ by 5 km/h. After 2 h, th
dimulka [17.4K]
Let the first car's average speed be x

The second car's speed would be x+5

2(x+(x+5))=210

2x+5=105

2x=100

x=50

So the speed of the slower car is 50mph, and the speed of the faster car is 55mph


8 0
2 years ago
Read 2 more answers
One major advantage of alternating current over direct current is that you can use alternating current with a device known as a
Oksanka [162]

transformer makes use of mutual induction for its operation in which change in magnetic field in one coil due to variation of current , induces voltage in the other coil. so changing magnetic field in the primary coil is very much needed for the transformer. Alternating current is a current which varies with time , hence it is suitable to produce changing magnetic field in the primary coil. on the other hand , the direct current remains constant all the time. hence can not produce a changing magnetic field. so DC current is not useful for transformers.

6 0
3 years ago
Read 2 more answers
A scientist is planning an experiment that will include the measurement of temperatures. She wishes to avoid using negative valu
cricket20 [7]

Answer:

C.

Explanation:

Fahrenheit scale is a temperature scale that measures the boiling point of water at 212 degrees F and the freezing point at 32 degrees F. The Fahrenheit scale was developed by the German scientist Daniel Gabriel Fahrenheit in 1724.

In the given scenario, the scientist, who wishes to measure the temperature of her experiment which will expectantly be colder than the point of water, should use the Fahrenheit scale.

So, the correct answer is option C.

8 0
2 years ago
You heat up a 3.0 kg aluminum pot with 1.5 kg of water from 5 to 90o Celsius. The specific heat capacity of Aluminum is 900 J/kg
Evgen [1.6K]

Answer:

<em>765,000Joules or 765kJ</em>

Explanation:

The Quantity of heat required is expressed as;

Q = (mcΔt)al + (mcΔt)water

m is the mass

c is specific heat capacity

Δt is the change in temperature

Q = (3(900)(90-5)) + (1.5(4200)(90-5))

Q = 2700*85 + 6300*85

Q = (2700+6300)85

Q = 9000*85

<em>Q = 765,000</em>

<em>Hence the amount of energy needed is 765,000Joules or 765kJ</em>

8 0
2 years ago
Other questions:
  • On an amusement park ride, riders stand inside a cylinder of radius 8.0 m. At first the cylinder rotates horizontally. Then afte
    15·1 answer
  • A street light is at the top of a 13.0 ft. tall pole. A man 6.3 ft tall walks away from the pole with a speed of 3.5 feet/sec al
    13·1 answer
  • Which of the following is the correct definition of mechanical energy? A. energy stored in chemical bonds of molecules B. energy
    14·2 answers
  • At room temperature, an oxygen molecule, with mass of 5.31x10^-26kg , typically has a kinetic energy of about 6.21x10^-21J. How
    13·1 answer
  • Dump Tower is 96 stories tall. A small, 1.2-kg object is dropped over the side of the roof of the tower and accelerates toward t
    13·1 answer
  • Diffraction spreading for a flashlight is insignificant compared with other limitations in its optics, such as spherical aberrat
    7·1 answer
  • If energy is transferred spontaneously as heat from a substance with a temperature of T1 to a substance with a temperature of T2
    9·1 answer
  • What is the motion of an apple when it falls from a tree ? a)Constant b)accelerating c)decelerating d)zero​
    11·1 answer
  • What is the function of hammer and anvil in human ear
    9·2 answers
  • According to the graph, during which time interval are the particles in the air slowing down?
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!