All categories

4 years ago

Which do you think will penetrate farther into a block of lead, x-rays, or gamma rays

Physics

1 answer:

disa [49]4 years ago

3 0

Gamma rays because it has more penetrating power and frequency but shorter wavelength.

You might be interested in

II) A 0.40-kg ball, attached to the end of a horizontal ord, is rotated in a circle of radius 1.3 m on a friction- less horizont

Lostsunrise [7]

Hi there!

In this instance, the object spinning in a horizontal circle will experience a net force in the horizontal direction due to tension.

The net force is equivalent to the centripetal force, so:

∑F = T

mv²/r = T

Solve for v:

v = √rT/m

v = 13.96 m/s

3 0

3 years ago

A long, thin solenoid has 950 turns per meter and radius 3.00 cm. The current in the solenoid is increasing at a uniform rate of

REY [17]

Answer:

Part a)

$E = 0.188 \times 10^{-3} N/CPart b)[tex]E = 0.376 \times 10^{-3}$ N/C

Explanation:

As we know that the magnetic field near the center of the solenoid is given as

$B = \mu_0 ni$

Also we know by equation of Faraday's law

EMF induced in the closed loop will be equal to rate of change in magnetic flux

so we have

$EMF = A\frac{dB}{dt}$

so we have

$\int E. dL = \pi r^2 (\mu_0 n \frac{di}{dt})$

$E. (2\pi r) = \pi r^2 (\mu_0 n \frac{di}{dt})$

$E = \frac{\mu_0 n r}{2} \frac{di}{dt}$

Part a)

At r = 0.500 cm

we have

$E = \frac{4\pi \times 10^{-7} (950) (0.500 \times 10^{-2})}{2}(63)$

$E = 0.188 \times 10^{-3} N/C$

Part b)

At r = 1.00 cm

we have

$E = \frac{4\pi \times 10^{-7} (950) (1.00 \times 10^{-2})}{2}(63)$

$E = 0.376 \times 10^{-3}$ N/C

5 0

3 years ago

A billiard ball moving at 6.00 m/s strikes a stationary ball of the same mass. after the collision, the first ball moves at 5.39

kodGreya [7K]

To do this question, we need to know that momentum is conserved, meaning the overall velocity of the two balls has to be the same before and after the collision. 

After collision... 

Ball 1: 4.33m/s *cos 30 = 3.75 m/s (x-component) 
4.33m/s * sin 30 = 2.165 m/s ( y-component) 

Ball 2 (struck ball): 5 m/s - 3.75m/s = 1.25 m/s (x-component) 
-2.165 m/s (y-component) note: it has to be in the opposite direction to conserve momentum 

tan-1(2.165/1.25) = 60 degrees 
Struck ball's velocity = sqrt(1.25^2 + 2.165^2) = 2.5 m/s at 60 degree with respect to the original line of motion. 

Hope you understand!

5 0

4 years ago

Read 2 more answers

The launching velocity of a missile is 20.0 m/s, and it is shot at 53º above the horizontal. Which of the velocity components (n

Drupady [299]

vertical component ie [email protected] determine time of flight

hope u get it..