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3 years ago

What is gravitonal force

Physics

1 answer:

zhuklara [117]3 years ago

8 0

Answer:

its something that hold the air for forceing liy by the exgen

Explanation:

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What is the wavelength of an fm radio signal that has a frequency of 91.7 mhz?

Digiron [165]

Answer:

The wavelength of the radio wave will be 3.271 m

Explanation:

We have given frequency of the radio signal $f=91.7MhZ=91.7\times 10^6Hz$

Speed of the light $c=3\times 10^8m/sec$

We have to find the wavelength of the radio signal

We know that wavelength is given by $\lambda =\frac{c}{f}=\frac{3\times 10^8}{91.7\times 10^6}=3.271m$

So the wavelength of the radio wave will be 3.271 m

3 0

3 years ago

Calculate the wavelength associated with electrons moving with p.d of 1500v

Artist 52 [7]

Answer:

3.16X10∧-11 m

Explanation:

1/2 mv2 = qV (KE = Electric potential energy)

velocity = √2qV/m = √( 2X 1.6X10∧-19 X 1500/9.11X10∧-31)

2.3X10∧7m/s

now use De Broglie equation

λ = h/mv

= 6.62X10∧-34/( 9.11X10∧-31 X 2.3X10∧7)

3.16 X 10∧-11 m

use the above equations and substitute to get the final eqiation

λ = h/√(2mqV) = 3.16X 10∧-11 m

4 0

3 years ago

An a.c. supply is connected to a wire stretched between the poles of a magnet. Which way does the wire move?

snow_lady [41]

The wire vibrates back and forth between the poles of the magnet.
The frequency of the vibration is the frequency of the AC supply.

7 0

2 years ago

Due to the intense heat and pressure on the inner core, scientists believe it is a A.solid B.liquid C.semi-fluid D.gas

nexus9112 [7]

The Answer Is Solid, But The Inner Core Is Surrounded By A Liquid Outer Core
Hope This Helps

3 0

3 years ago

Read 2 more answers

A hovering mosquito is hit by a raindrop that is 50 times as massive and falling at 8.4 m/s, a typical raindrop speed. How fast

kenny6666 [7]

The final velocity after the collision is 8.2 m/s

Explanation:

We can solve this problem by using the law of conservation of momentum: in fact, if we consider the system to be isolated (=no external unbalanced forces), the total momentum of the raindrop+mosquito must be conserved before and after the collision.

If the collision is perfectly inelastic, moreover, the raindrop and the mosquito stick together and travel at the same velocity v after the collision.

Mathematically:

$p_i = p_f\\m_1 u_1 + m_2 u_2 = (m_1+m_2)v$