3 years ago

Which of the following elements is a metalloid?

Physics

1 answer:

Pavlova-9 [17]3 years ago

6 0

Answer:

Germanium

Explanation:

Germanium is a chemical element that is grayish white metalliod

You might be interested in

An empty parallel plate capacitor is connected between the terminals of a 4.4-V battery and charged up. The capacitor is then di

torisob [31]

Answer:

Explanation:

idk

7 0

3 years ago

A 0.12-kg metal rod carrying a current of current 4.1 A glides on two horizontal rails separation 6.3 m apart. If the coefficien

Neporo4naja [7]

Answer:

The magnetic field is $B = 8.20 *10^{-3} \ T$

Explanation:

From the question we are told that

The mass of the metal rod is $m = 0.12 \ kg$

The current on the rod is $I = 4.1 \ A$

The distance of separation(equivalent to length of the rod ) is $L = 6.3 \ m$

The coefficient of kinetic friction is $\mu_k = 0.18$

The kinetic frictional force is $F_k = 0.212 \ N$

The constant speed is $v = 5.1 \ m/s$

Generally the magnetic force on the rod is mathematically represented as

$F = B * I * L$

For the rod to move with a constant velocity the magnetic force must be equal to the kinetic frictional force so

$F_ k = B* I * L$

=> $B = \frac{F_k}{L * I }$

=> $B = \frac{0.212}{ 6.3 * 4.1 }$

=> $B = 8.20 *10^{-3} \ T$

7 0

3 years ago

Show that Ns is the same as kgmls.<br>

Minchanka [31]

1 N = 1kgm/s²

then,

1Ns = 1kgm/s² * s

1Ns = 1kgm/s

Hence shown.

3 0

3 years ago

You push a block to the top of an inclined plane. The mechanical advantage of the plane is 5. The inclined plane is 10 meters lo

Veronika [31]

Answer: 50 m

Explanation:

4 0

3 years ago

Read 2 more answers

Suppose a cart with no fans has a starting velocity of 2 m/s. What will be the velocity of the cart when it reaches a wall?

ArbitrLikvidat [17]

How long is the track?

3 0

4 years ago