How much time will it take for a bug to travel 5 meters across the floor if it is

Please i need help! ill give brainliest toooo!

Igoryamba

Answer:

b

Explanation:

7 0

2 years ago

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A 5.30kg block hangs from a spring with a spring constant 1700 N/m. The block is pulled down 4.50cm from the equilibrium positio

Andru [333]

To solve this problem it is necessary to apply the concepts related to the frequency in a spring, the conservation of energy and the total mechanical energy in the body (kinetic or potential as the case may be)

PART A) By definition the frequency in a spring is given by the equation

$f = \frac{1}{2\pi} \sqrt{\frac{k}{m}}$

Where,

m = mass

k = spring constant

Our values are,

k=1700N/m

m=5.3 kg

Replacing,

$f = \frac{1}{2\pi} \sqrt{\frac{1700}{5.3}}$

$f=2.85 Hz$

PART B) To solve this section it is necessary to apply the concepts related to the conservation of energy both potential (simple harmonic) and kinetic in the spring.

$\frac{1}{2}kA^2 = \frac{1}{2}mv^2 + \frac{1}{2} kY^2$

Where,

k = Spring constant

m = mass

y = Vertical compression

v = Velocity

This expression is equivalent to,

$kA^2 =mV^2 +ky^2$

Our values are given as,

k=1700 N/m

V=1.70 m/s

y=0.045m

m=5.3 kg

Replacing we have,

$1700*A^2=5.3*1.7^2 +1700*(0.045)^2$

Solving for A,

$A^2 = \frac{5.3*1.7^2 +1700*(0.045)^2}{1700}$

$A ^2 = 0.011035$

$A=0.105 m \approx 10.5 cm$

PART C) Finally, the total mechanical energy is given by the equation

$E = \frac{1}{2}kA^2$

$E=\frac{1}{2}1700*(0.105)^2$

$E= 9.3712 J$

3 0

3 years ago

Which of the following is not an EM wave?

Zarrin [17]

Answer:

D. Sound

Explanation:

Waves: one of the ways that energy may be transferred. Waves can be described as oscillations.

Electromagnetic (EM) waves are transverse waves.

EM waves can be separated into seven groups in the spectrum. From long wavelength to short wavelength:

Radio waves
Microwaves
Infrared
Visible light
Ultraviolet
X-rays
Gamma rays

Sound waves are longitudinal waves.

The direction of oscillations is different between longitudinal and transverse waves:

Longitudinal waves: the vibrations are parallel to the direction of wave travel.
Transverse waves: the vibrations are at right angles to the direction of wave travel.

8 0

9 months ago

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A very long thin wire carries a uniformly distributed charge, which creates an electric field. The electric field is (2300 N/C ,

Leto [7]

Answer:

λ= 5.24 × 10 ⁻² nC/cm

Explanation:

Given:

distance r = 4.10 cm = 0.041 m

Electric field intensity E = 2300 N/C

K = 9 x 10 ⁹ Nm²/C

To find λ = linear charge density = ?

Sol:

we know that E= 2Kλ / r

⇒ λ = -E r/2K (-ve sign show the direction toward the wire)

λ = (- 2300 N/C × 0.041 m) / 2 × 9 x 10 ⁹ Nm²/C

λ = 5.24 × 10 ⁻⁹ C/m

λ = 5.24 nC/m = 5.24 nC/100 cm

λ= 5.24 × 10 ⁻² nC/cm

3 0

2 years ago

In a uniform electric field, the magnitude of torque is given by:-

Step2247 [10]

Answer:

Electric dipole

Explanation:

the dipole axis makes an angle with the electric field. depending on direction (clockwise/aniclockwise) you get the torque

Hope this helps

6 0

3 years ago