All categories

2 years ago

Effect of temperature on electrical resistance

Physics

1 answer:

SCORPION-xisa [38]2 years ago

8 0

Answer:

increase in the resistance profit accompanying an increase in temperature.

Explanation:

The fighting of the leader is equivalent to the hotness. The increase in hotness of the leader increases allure opposition.

You might be interested in

Why is the mass of an atom’s electrons not included in the atom’s mass number

frosja888 [35]

The electron is so light and so little mass that it basically adds nothing to the mass so the scientists decided not to include it

7 0

3 years ago

What is the major difference between herbal and conventional medicines

nirvana33 [79]

Most importantly, the main difference between herbal medicines and conventional medicines is that herbal medicines each contain a combination of chemicals, as opposed to a single pharmacologically active substance.

7 0

3 years ago

A physics lab group rolls a ball off a horizontal table with a speed of 1.6 m/s. the table is 1.2 m high. how far in the horizon

Brilliant_brown [7]

Answer:

0.784 m

Explanation:

The motion of the ball is a projectile motion, which consists of two independent motions:

- a horizontal uniform motion, with constant speed of $v_0 = 1.6 m/s$

- a vertical accelerated motion, with constant acceleration $g=-9.8 m/s^2$ towards the ground and initial position $y_0 = 1.2 m$

By looking at the vertical motion, we can find the time t at which the ball hits the ground, which is the time t at which the vertical position y becomes zero:

$y(t)=0\\y(t)=y_0 +\frac{1}{2}gt^2\\0=y_0 +\frac{1}{2}gt^2\\t=\sqrt{-\frac{2 y_0}{g}}=\sqrt{-\frac{2\cdot 1.2 m}{-9.8 m/s^2}}=0.49 s$

And now we can use the horizontal motion to find the total horizontal distance traveled during this time interval:

$S_x = v t=(1.6 m/s)(0.49 s)=0.784 m$

4 0

3 years ago

A large crate sits on the floor of a warehouse. Paul and Bob apply constant horizontal forces to the crate. The force applied by

Delicious77 [7]

Answer:

W = -510.98J

Explanation:

Force = 43N, 61° SW

Displacement = 12m, 22° NE

Work done is given as:

W = F*d*cosA

where A = angle between force and displacement.

Angle between force and displacement, A = 61 + 90 + 22 = 172°

W = 43 * 12 * cos172

W = -510.98J

The negative sign shows that the work done is in the opposite direction of the force applied to it.

6 0

3 years ago

What will happen to the pitch of a sound as that sound’s source approaches an observer? Explain why this happens, based on what

I am Lyosha [343]

The pitch of a sound is decreased, when a sound source approaches the observer.

<u>Explanation:</u>

Pitch is nothing but it is a property that helps to determine whether the sound is high or low. Doppler effect helps to understand this concept easily. The pitch of the sound is mainly calculated based on the frequency of the sound wave arose from the sound source.

As the wellspring of sound waves moves toward an audience, the sound waves draw nearer together, expanding their recurrence and the pitch of the sound.

8 0

4 years ago

Read 2 more answers

Effect of temperature on electrical resistance​

Effect of temperature on electrical resistance