Physical sciences category

Physical sciences category

Space and astronomy

Posted by bostjan64 some time ago

What is the freezing point (or gel point) of Gasoline?

Posted by bostjan64 some time ago

Batman vs. Joker

Posted by bostjan64 some time ago

Weight on an elevator problem

Posted by Linda Joy some time ago

How can such a tiny thing be such big news?! First time ever quantum entanglement in space!

Posted by Luis Maldonado some time ago

The Velocity of a 600kg automobile is changed from 10 m/s to 44 m/s by an applied force. Calculate that force.

Posted by Shiva Abhishek some time ago

Find total energy of body of 5kg mass,which is at a height of 10m from earth and falling downwards with a velocity of 20m/s.take acceleration due to gravity as 10m/s

Posted by Victoria Tapia some time ago

Physics Question

Posted by Linda Joy some time ago

What changes flavor as it travels?

Posted by bostjan64 some time ago

What is the cause of the nonparabolicity of the energy-size dependence for the lowest optical absorption transition of quantum dots?

Posted by Linda Joy some time ago

True or False: Massless particles don't experience time.

Posted by Linda Joy some time ago

Do you ever wonder if our entire universe is rotating around something larger we haven't discovered yet?

Posted by Stpauligerle some time ago

CERN makes terrible error

Posted by Linda Joy some time ago

What do you think of the new smart clothes that generate electricity?

Posted by Linda Joy some time ago

Did you know NASA's Psyche Mission launch date has been moved up a year?

Posted by Linda Joy some time ago

Did you see this? AI is going to help ET find his home!

Posted by Aman Pal some time ago

Estimate the speed of sound in air at standard temperature and pressure the mass of one mole of air is 29.0 into 10 ki power minus 3 kg

Posted by MissLiss some time ago

At what temperature does water turn to steam?

Posted by Briana Turner some time ago

What Happens to the Atoms of Soda as it Freezes?

Posted by Luis Maldonado some time ago

A 9800 kg car traveling 22 m/s strikes a concrete bridge support and comes to a complete halt in 0.5 sec. Calculate the magnitude of the force acting on the car to stop it.

Posted by Roaring some time ago

The Moon in the blue morning sky:Can you see it?

Posted by Crish Nagarkar some time ago

which solids crystallises as fcc

Posted by Manish Saroha some time ago

In an experiment, ram is being provided a frictionless inclined track that ends ina a circular loop of diameter D. Ram puts a body on the track and allows it to slide down this track under gravity from a height of 10cm. The body is just able to complete the cicular track . whats the diameter of the track?

Posted by Shay Barat some time ago

Do you think that aliens exist?

Posted by Patricio Daniel Abello some time ago

Why can't you see space in the day?

Posted by Abhishek Choudhary some time ago

The image of an object, placed at 20 CM in front of the lens is formed hundred cm find the length of the lens is used to correct a vision defect then what will be the near point of the defected eye

Posted by Gemrick Sapilan some time ago

Can you help me with this?

Posted by Sam Khan some time ago

Name two metals which are added to iron and carbon no make stainless steel

Posted by Vedas Chebrolu some time ago

Nuclear reactions obey law of conservation of

Posted by Vedas Chebrolu some time ago

The mission of uranium nuclide leads to

Posted by Percussion some time ago

Have you ever worked for NASA?

Posted by Karen Underwood some time ago

which direction does the sun set in

Posted by Linda Joy some time ago

Who do you think will be sponsoring the next rocket launch?

Posted by Sulaiman Inayat some time ago

Amongst the following which one has weakest London dispersion forces present, NH3, C2H5OH and H2SO4? Please explain it.

Posted by Jules Kim some time ago

What makes a metal a metal?

Posted by Bram De Becker some time ago

From what height would one have to drop a watermelon (4kg) in order for it to smash into pieces on the water surface?

Posted by Mayank some time ago

two balls A and B of masses 40g ang 50 g are moving at speed of 40m/s and 30m/s respectively. If after colliding, B starts moving with a velocity 25m/s, what is the velocity of A?

Posted by Mayank some time ago

two balls A and B of masses 40g ang 50 g are moving at speed of 40m/s and 30m/s respectively. If after colliding, B starts moving with a velocity 25m/s, what is the velocity of A?

Posted by Asui Naro some time ago

Why can hydrogen be used as a fuel

Posted by Hadia Amer some time ago

A barrel of weight 1500N and radius 0.5 m rests against a step of height 0.2 m.What is the smallest horizontal force through the center of circle needed to push the barrel over the step?

Posted by Bibaran Gautam some time ago

Photochemical reaction mechanism

Posted by Lilo Avli some time ago

Who knew what time it was, when the first clock was made ?

Posted by Alhadzra Alih some time ago

what kind of minerals/rocks are usually taken from quarries?

Posted by Goldy Virk some time ago

What happen if we place oxyheamoglobin blood in the front of UV Rays

Posted by Hritwik Bhardwaj some time ago

The ground state and the first excited state of fluorine are separated by 17.4228 ev. Calculate the ratio of the number of atoms in the excited state to that in the ground state

Posted by AKYAjit some time ago

How many planets are there in our solar system?

Posted by Zohaib Idrees some time ago

waht is the time period of the 50hz oscillator

Posted by Anonymous some time ago

Is this useful knowledge?

Posted by Kianna Unique Shavers some time ago

A sprinter starting from rest on a straight and level track is able to achieve a speed of 14 m/s in a time of 5.7 s. What is the sprinter's average acceleration?

Posted by Jignasha Patel some time ago

Matter can be made up of one kind of particles is said to be _______?

Posted by Diwakar Methil some time ago

When the light from a torch is turned on towards a copper plate the bulb was fused in a short time. What chemical caused the bulb to fuse?

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