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tekilochka [14]

4 years ago

5

NEED HELP ASAP PLS!!!!

1 answer:

Anton [14]4 years ago

3 0

Answer:

gfcfcvbctyhgchgcgfcfbgfctf

Explanation:

jkbjkbjkjbjjbjbbj

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Which of the following is an example or an orginasm mantaining homeostasis

Kryger [21]

a cat grooming itself

8 0

3 years ago

A hockey puck sliding on a frictionless surface strikes a box at rest. After the collision, the two objects stick together and m

coldgirl [10]

Answer:

Answer:

f) The puck conserves its original momentum but loses some, but not all, of its mechanical energy.

Explanation:

It is a case of perfectly inelastic collision . So momentum will be conserved because no external force acts on them during the collision . But there will be loss of energy ( kinetic energy ) . It will be in the form of sound or heat that is produced during collision. They will still have some kinetic energy even after the collision.

Explanation:

3 0

4 years ago

A long, thin solenoid has 450 turns per meter and a radius of 1.17 cm. The current in the solenoid is increasing at a uniform ra

sergey [27]

Answer:

$\frac{di}{dt} = 7.31 \ A/s$

Explanation:

From the question we are told that

The number of turns is $N = 450 \ turns$

The radius is $r = 1.17 \ cm = 0.0117 \ m$

The position from the center consider is x = 3.45 cm = 0.0345 m

The induced emf is $e = 8.20 *10^{-6} \ V/m$

Generally according to Gauss law

$\int\limits { e } \, dl = \mu_o * N * \frac{di}{dt } * A$

=> $e * 2\pi x = \mu_o * N * \frac{d i }{dt } * A$

Where A is the cross-sectional area of the solenoid which is mathematically represented as

$A = \pi r ^2$

=> $e * 2\pi x = \mu_o * N * \frac{d i }{dt } * \pi r^2$

=> $\frac{di}{dt} = \frac{2e * x }{\mu_o * N * r^2}$ ggl;

Here $\mu_o$ is the permeability of free space with value

$\mu_o = 4\pi * 10^{-7} \ N/A^2$

=> $\frac{di}{dt} = \frac{2 * 8.20*10^{-6} * 0.0345 }{ 4\pi * 10^{-7} * 450 * (0.0117)^2}$

=> $\frac{di}{dt} = 7.31 \ A/s$

6 0

4 years ago

A body of mass 5kg is taken from height 10m. find the increase in potential energy

Vadim26 [7]

Answer:

500 joule

Explanation:

given,

mass(m)= 5kg

height(h)= 10m

acceleration due to gravity(g)= 10m/s^2

potential energy =?

We know that,

potential energy = mgh

= 5×10×10

= 500 joule

3 0

3 years ago

A plane accelerates down a runway. The plane accelerates at 2 m/s/s for 10 seconds and obtains a speed of 20 m/s. What speed wou

otez555 [7]

here acceleration initially is given as 2 m/s/s for total time of 10 s

so in above situation the final speed will be 20 m/s

now here if acceleration is double as well as the time is also double

so now we will have

$a = 4 m/s^2$

$t = 20 s$

so now the final speed is given as

$v_f = 4 (20)$

$v_f = 80 m/s$

8 0

3 years ago