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3 years ago

Wooden handles on knives do not require maintenance. TRUE FALSE

Physics

1 answer:

Olenka [21]3 years ago

5 0

Answer: false

Explanation:

You have to make sure it doesn’t stay wet

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Jake, who weighs 680 newtons, climbs a 6-meter ladder in 8 seconds. What was Jake's power?

Jobisdone [24]

I feel like it would be 536

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3 years ago

A proton is released in a uniform electric field, and it experiences an electric force of 2.04×10−14 N toward the south.

Lemur [1.5K]

Answer:

Part A:

$E=127500N/C\\E=1.275*10^{5} N/C$

Part B:

Option B (Towards the South)

Explanation:

Part A:

Magnitude if electric field E:

E=Force/charge

Force=2.04×10−14 N

Charge=1.6×10−19 C

$E=\frac{2.04*10^{-14}}{1.6*10^{-19}} \\E=127500N/C\\E=1.275*10^{5} N/C$

Part B:

Option B (Towards the South)

As electron is experiencing the force towards south,it means the direction of the electric field is towards the south because direction of field lines is from positive to negative, so proton is moving towards south it means negative charge is in south to which proton is attracted. So electric field is towards South.

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3 years ago

Compare and contrast two physical properties of apples and oranges

elena-14-01-66 [18.8K]

Color: Apples are red or green or yellow. Oranges are normally orange.

Malleability: Apples are hard and brittle. Oranges are soft and squishy.

5 0

3 years ago

A 7.80-g bullet moving at 540 m/s strikes the hand of a superhero, causing the hand to move 5.10 cm in the direction of the bull

Lina20 [59]

Answer:

$F = 22298.824\,N$

Explanation:

According to the Principle of Energy Conservation and the Work-Energy Theorem, the bullet has the following expression:

$U_{g,A} + K_{A} = U_{g,B} + K_{B} + W_{loss}$

$W_{loss} = U_{g,A}-U_{g,B} + K_{A}-K_{B}$

$F\cdot \Delta s = \frac{1}{2}\cdot m \cdot [v_{A}^{2}-v_{B}^{2}]$

The average force exerted on the bullet to stop it is:

$F = \frac{m\cdot [v_{A}^{2}-v_{B}^{2}]}{2\cdot \Delta s}$

$F = \frac{(7.8\times 10^{-3}\,kg)\cdot [(540\,\frac{m}{s} )^{2}-(0\,\frac{m}{s} )^{2}]}{2\cdot (0.051\,m)}$

$F = 22298.824\,N$

5 0

3 years ago

Read 2 more answers

A positive charge is moving across a room from south to north. A magnetic field runs from east to west. In what direction is the

sp2606 [1]

Answer:

the force is on the z axis, coming out of the blade

Explanation:

The direction of the magnetic force is given by the right hand rule,

For a positive charge, the thumb points in the direction of velocity, the other fingers extended in the direction of the magnetic field, and the palm points in the direction of force.

In this case.

Thumb points North

The fingers extended is in the east - west direction parallel to the blade

The palm is sticking out of the leaf, in the z direction

the answer is the force is on the z axis, coming out of the blade

7 0

3 years ago