3 years ago

Someone can help me pls Is physical science class

Physics

1 answer:

pentagon [3]3 years ago

6 0

Answer:

<em> I can't see the picture</em>

Explanation:

You might be interested in

A brick sliding across a smooth floor has a coefficient of static friction of s=0.23 and a coefficient of kinetic friction of k=

pantera1 [17]

Answer:

0.029325

Explanation:

0.23x0.15=0.0345

0.0345x0.85=0.029325

4 0

1 year ago

Read 2 more answers

How long would this acceleration last

Aleksandr-060686 [28]

It would last as long as the applied force continued, or until the accelerating object hit something.

6 0

3 years ago

The heat released by burning candle is an example of thermal energy

yawa3891 [41]

False the correct answer is chemical bonds instead of thermal energy

4 0

3 years ago

Read 2 more answers

An electron moving at right angles to a 0.1 T magnetic field experiences an acceleration of 6 × 1015 m.s-2. What is the speed of

GaryK [48]

Explanation:

It is given that,

Magnetic field, B = 0.1 T

Acceleration, $a=6\times 10^{15}\ m/s^2$

Charge on electron, $q=1.6\times 10^{-19}\ C$

Mass of electron, $m=9.1\times 10^{-31}\ kg$

(a) The force acting on the electron when it is accelerated is, F = ma

The force acting on the electron when it is in magnetic field, $F=qvB\ sin\theta$

Here, $\theta=90$

So, $ma=qvB$

Where

v is the velocity of the electron

B is the magnetic field

$v=\dfrac{ma}{qB}$

$v=\dfrac{9.1\times 10^{-31}\ kg\times 6\times 10^{15}\ m/s^2}{1.6\times 10^{-19}\ C\times 0.1\ T}$

v = 341250 m/s

$v=3.41\times 10^5\ m/s$

So, the speed of the electron is $3.41\times 10^5\ m/s$

(b) In 1 ns, the speed of the electron remains the same as the force is perpendicular to the cross product of velocity and the magnetic field.

7 0

3 years ago

3.A bridge usually has expansion joints. They allow the bridge to become slightly longer when it

Dominik [7]

Answer:

a) When the sides of the joint are close together, the particles have more kinetic energy than they do when sides are farther apart.

Explanation:

5 0

3 years ago