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During an isothermal process, 5.0 J of heat is removed from an ideal gas. What is the work done in the process?

A bedridden patient has developed pressure ulcers. Why is protein an important part of the diet to promote wound healing?

If the coefficient of kinetic friction between a 35kg crate and the floor is 0.30, what horizontal force is required to move the crate at a steady speed across the floor? What horizontal force is required if #mu_k# is zero?

Determine the potential difference VA–VB between points A and B of circuit shown in fig. under what condition is it equal to zero?

When distance is plotted against time on a graph, what does a straight line represent?

A cell has an e.m.f of 1.08 v and an internal resistor of 0.5 ohm. when it is connected in series with resistor of R , the potential difference between the terminals fell to 0.96 v . what was the value of R?

Why is the body temperature maintained at about 37°C?

Do paranasal sinuses open into the oral cavity? Do they enhance the resonance of the voice and lighten the skull?

What is the reason surface tension exists in the alveoli of the lungs?

Which part of brain is responsible for superstition?

A ganglion in the peripheral nervous system can be compared to what in the central nervous system?

What are some examples of prions?

How is the average force of friction calculated?

What is the graph obtained when a body is thrown in upward direction with velocity on yaxis and position of body on xaxis? Also,can you please explain how it is obtained?

Answer It With explanation ?

Show It With Explanation ?

Why do most leaves appear green to the human eye?

Dimensional analysis doubt!!!??

If #(9^(x2) * 3^(2x2))/(27^(x+3)) =81, x=?#

A hockey puck is hit on a frozen lake and starts moving with a speed of 12.0 m/s. Exactly 5.0 s later, its speed is 6.0 m/s. What is the puck’s average acceleration, and what is the coefficient of kinetic friction between puck and ice?

What will be the anser?

Foods which increases the only number of rod cells in human eye ?

Q.5 Correct the mistakes if present in the following statements?

Explain how a simple spring is an example of simple harmonic motion?

A cone has a perpendicular height of 12cm and slant height of 13cm . Calculate it's total surface area (take pie r =3.142)?

An egg is thrown horizontally off a roof, which is 60 meters high, with an initial velocity of 6.5 m/s. How long does it take to hit the ground, and how far does it go in the x direction?

What is the ability to do work called?

If an object is moving at #50 m/s# over a surface with a kinetic friction coefficient of #u_k=2 /g#, how far will the object continue to move?

What sound waves can humans hear?

Which is correct ?

Can someone solve question iv? (its the top one)

Is static friction a reaction force?

What is the value of x in the equation (a/b)^(2x3) = (b^3/a^3)^(x+4)?

Two bodies. X and Y of mass m and M respectively exert forces on each other and no other forces act on them. The force on X is F and the acceleration is a. Which of the following pairs is correct?

If kinetic energy of electron is double then its radius becomes?

A point source is placed at a distance of 30cm from a convex lens (f=15cm). A glass slab of thickness 1cm is kept just in the opposite side of the lens. The refractive index of glass is 1.5. what will be image distance from lens?

To stimulate a roller coaster, a cart is placed at the height of 4 m and allowed to roll from rest to the bottom. Find each of the following for the cart if friction can be ignored: a) the speed at the height of 1 m, b) the height when the speed is 3 m/s?

Two point charges with charges of #8.4xx10^6# are brought close to each other. (a). Sketch this and show the direction of the electric force?
(b) If the point charge on the left feels a force of #0.66N,# calculate the distance, #r,# between them?

Two forces whose resultant is 200N are perpendicular to each other. If one of them makes an angle of 60° with the resultant. Calculate it magnitude?

When white light goes through the prism, it splits into a spectrum. Why red rays refract less and purple rays most of all?

Jane slowly paddles her canoe across a calm lake. Explain what makes the boat moves forward. What principle best explains this situation?

Why does sliding filament theory not apply during rigor mortis?

Why is alcohol a good antiseptic at the cellular level?

You do work when you push a heavy object even if the object does not move?

.54 mol of H2 is contained in a 2.00 L container at 20.0 oC. What is the pressure in the container in atm?

The diode that converts light energy into electrical energy is called photodiode or solar cell?

If the total energy of the particle executing shm is e and amplitude a if the mass is m.find the new total energy if a new massm is attached to the particle at its extreme?

If the torque needed to loosen a bolt is 40.0 Nm, what must be the minimum force exerted on a .30 m wrench to loosen the bolt?

If a book weighing 10 N is sitting on a table, what is the magnitude of the support force?

How do capacitors work in a circuit?

What exactly makes the creation of a vaccine against malaria difficult?

Significance of the negative values for potential difference to current graph?

Between the configurations 4p1 and 4p2,which one is more stable?