Questions on Physics

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Physics, 31.07.2021 09:00

Derive an expression for resistivity of conductor of length l and area of cross section A...

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Physics, 31.07.2021 09:00

What is kinematics ???explain don't spam !! ...

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Physics, 31.07.2021 08:40

What particles in an atom can increase and decrease in number without changing the identity of the elements...

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Physics, 31.07.2021 08:40

The source of sound moves away from the listener. The listener has the impression that the source is lower in pitch. Why?...

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Physics, 31.07.2021 08:30

Resistances is inversely proprtional to___of the conductor...

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Physics, 31.07.2021 07:20

How contact force is useless...

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Physics, 31.07.2021 07:20

Two 51 g blocks are held 30 cm above a table. As shown in the figure, one of them is just touching a 30-long spring. The blocks are released at the same time. The block on the left hits the table at e...

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Physics, 31.07.2021 07:00

Two 51 g blocks are held 30 cm above a table. As shown in the figure, one of them is just touching a 30-long spring. The blocks are released at the same time. The block on the left hits the table at e...

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Physics, 31.07.2021 07:00

Select the correct text in the passage. Jared is reading an article about the heavy rains that have fallen recently in his town. But he can't separate the facts from the opinions. Which sentences in t...

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Physics, 31.07.2021 06:20

Write down the formula to calculate the surface area of circular body ...

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Physics, 31.07.2021 06:20

A proton has a speed of 3.0 × 106m/s in a direction perpendicular to a uniform magnetic field, and the proton moves in a circle of radius 0.20 m. What is the magnitude of the magnetic field? (Proton m...

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Physics, 31.07.2021 05:50

If a lever lifts a load four times the effort applied and effort distance is 5 times the load distance, calculate its efficiency...

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Physics, 31.07.2021 05:50

09. A car of mass 1000 kg moves at a constant speed of 20m/sec along a horizental road where frictional force is 200 N. The power developed by the engine is....

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Physics, 31.07.2021 05:30

HELP‼️‼️ A car horn creates a 595 Hz tone at rest. Two cars pass on the street, each going 20.0 m/s; the first car honks. What frequency does the other car hear before they pass each other?...

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Physics, 31.07.2021 05:30

1. A raindrop acquires a negative charge of 3.0 X 10-18 C as it falls. What is the force of attraction when the raindrop is 6.0 cm from the bulb on the end of a car antenna that holds a charge of

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Physics, 31.07.2021 05:30

How can we maintain peace in the nature and surrounding...

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Physics, 31.07.2021 05:00

Một người đi xe ô tô từ một b cách đó 90km trong khi đó là đường dó đi và vận tốc v1 trong nửa đường sau của người đi và vận động v2=2v1/3.Tính vận động của người đó trên đường phố sau 1,5h....

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Physics, 31.07.2021 05:00

. Two charges, Q1 and Q2 , are separated by a certain distance R. If the magnitudes of the charges are halved, and their separation is also halved, then what happens to the electrical force between th...

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Physics, 31.07.2021 04:50

Recall that a Rube Goldberg device is a series of events that performs a simple task. For this performance task you will design a Rube Goldberg device to show the transfer of energy from step to ste...

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Physics, 31.07.2021 04:50

Clois what is the weight of a body in the earth, if its weig is 5Nin moon? ...