Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Physics Expert

Understand the concepts for finding the change in length of a rod, Kepler's law, and melting of a material.

1. An aluminum rod 15 cm in length is heated from 10 degrees Celsius to 50 degrees Celcius. What is the change in length?

1. 15 cm
2. 8 cm
3. 6 cm
4. None of the above.

2. What is Kepler's first law of planetary orbits?
1. The planets move on ellipses with the Sun at the center of ellipse.
2. The planets revolve around the Earth.
3. The position of the planets foretells the future.
4. The planets move on ellipses with the Sun at one of the foci.

3. In order to completely melt a material,
1. Heat must be added to bring the material to melting temperature and then the latent heat of fusion should be added to change the phase.
2. Heat must be added to make the object expand to the melting volume
3. No heat needs to be added.
4. Stir while adding heat.

Physics, Academics

  • Category:- Physics
  • Reference No.:- M917322

Have any Question? 


Related Questions in Physics

The filament of a tungsten light bulb was red at time t1

the filament of a tungsten light bulb was red at time t1, orange ar time t2, and white at time t3. Estimate the temperature of the filament at eaxh time. 1. 500c 2. 300c 3. 2500c 4. 5800c 5. 1700c 6. 8000c

Select two objects with flat surfaces such as books with

Select two objects with flat surfaces such as books with different covers, for instance hard back and paperback. You will also need an inclined surface which can be tilted, such as a larger book or a small table. Form a ...

Please answer the 3 questions below 150 words or less

Please answer the 3 questions below 150 words or less provide references if applicable. What are the implications of the use of technology on understanding brain development and behavior? Discuss cognitive development in ...

A clown is shot straight up out of a cannon the graph of

A clown is shot straight up out of a cannon. The graph of his velocity versus time isshown. Determine the clown's vertical displacement from the instant he is shot out ofthe cannon at 0.0 seconds until when he reaches ze ...

A pilot flies out of cleveland and sets the compass of the

A pilot flies out of Cleveland and sets the compass of the plane due north. The pilot maintains an airspeed of 250km/h. After flying for 30 minutes the pilot finds that the plane is 200km north and 40 km west of the star ...

1 a water wave has a frequency of 6 hz and a wavelength of

1. A water wave has a frequency of 6 Hz and a wavelength of 3 m. (a) What is the period of these waves? (b) What is the wave velocity? 2. A submarine sends a sonar signal, which returns from another ship 2.250 s later. H ...

A wire of nichrome of length 80cm has a resistance of 50

A wire of nichrome of length 80cm has a resistance of 50 ohms. if the wire is four folded, find new resistance.

A proton moving at 106ms suddenly enters a repelling

A proton moving at 10 6 m/s suddenly enters a repelling electric field of magnitude 10 4 N/C. What is the distance the proton goes before stopping?

An athlete swims the length of a 500-m pool in 200s and

An athlete swims the length of a 50.0-m pool in 20.0s and makes the return trip to the starting position in 22.0s. Determine her average velocities in (a) the first half of the swim, (b) the second half of the swim, and ...

A 500 car travelling at 45 kmhr towards west collides wa

A 500 car travelling at 45 km/hr towards west collides w/a 20000 kg truck travelling at 30 km/hr, 30 degrees south of west. if the two vehicle remain tangled together after collision, in what speed and in direction will ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

A cola-dispensing machine is set to dispense 9 ounces of

A cola-dispensing machine is set to dispense 9 ounces of cola per cup, with a standard deviation of 1.0 ounce. The manuf

What is marketingbullwhat is marketing think back to your

What is Marketing? • "What is marketing"? Think back to your impressions before you started this class versus how you

Question -your client david smith runs a small it

QUESTION - Your client, David Smith runs a small IT consulting business specialising in computer software and techno

Inspection of a random sample of 22 aircraft showed that 15

Inspection of a random sample of 22 aircraft showed that 15 needed repairs to fix a wiring problem that might compromise

Effective hrmquestionhow can an effective hrm system help

Effective HRM Question How can an effective HRM system help facilitate the achievement of an organization's strate