Physics Questions and Answers



Recent Questions :: Physics

1817 QuestionsPage 1 of 182.

Calculate the Mass of the Scale

A spiral spring of natural length 20.00cm has a scale pan hanging freely in its lower end. When an object of mass 40g is placed in the pan, its length becomes 21.80cm. When the object is replaced with another mass 60g, the length becomes 22.05cm. Calculate the mass of the scale pan (g=10m/s) SSCE.

Asked by: Joy on Sep 22, 2022.

Calculate the Kinetic Energy of the Rocket

A rocket of a total mass of 500kg on the earth's surface is to be launched into space. Calculate the kinetic energy required of it to escape into space.

Asked by: David on Apr 13, 2022.

Find the Angle of Lights

A mixture of violet (410 nm) light and blue (470) light falls onto a grating that contains 800
lines/mm. For each light, find the angle that locates the second-order maximum?

Asked by: Canex on Mar 12, 2020.

Calculate the Force of a Man Who Press his Feet Against the Floor

A man of weight w=712 N holds one end of a rope that passes over a pulley vertically above his head and tk the other end of which is attached a wight Q= 534N. Find The force with which the man's feet press against the floor answer in detail.

Asked by: K Gayathri on Dec 27, 2019.

First Signal of TV

We know that light travels faster than sound. Then when we switch on a T. V why we get sound first than light?

Asked by: BHUKYA VIJENDER on Dec 24, 2019.

Calculate the Velocity of Sam's car

Every weekday Sam drives the distance of 25 km between his home and work in 30 minutes. However, Friday it only takes him 20 minutes to cover the same distance. Calculate the velocity of Sam's car on these different day's.

Asked by: Meena on Nov 6, 2019.

The Rate of Change of Momentum

The rate of change of momentum is called
a) Force
b) Impulse
c) Torque
d) Acceleration

Asked by: Nainika Bose on Oct 26, 2019.

Prove: Minimum Number of an Equally Forced Vector Sum is Zero

The minimum number of forced (all numerically equal) whose vector sum can be zero is?

Asked by: Esarfatma on Sep 30, 2019.

Relation Between the Density of Gas and Mass

How the density of a gas is related to its mass?

Asked by: Jack on Aug 13, 2019.

Law of Conservation of Linear Momentum

State the law of conservation of linear momentum and prove it on the basis of second law of motion.

Asked by: Immanuel on Aug 5, 2019.

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