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drek231 [11]
2 years ago
10

Why does it take more force to push a car than it takes to push a bicycle? Please fully explain

Physics
1 answer:
never [62]2 years ago
6 0
The car mas more mass than a bicycle. Newton's second law states force equals mass times acceleration.
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The sun doesn't set during what season and at what latitude?
Dahasolnce [82]

Answer: summer and greater than 66°N

Explanation:

Summer is the most appropriate season in which the sun does not set. It is a typical situation for the Arctic Circle. It is the latitude in which the sun does not set in the day and typically during the month of July. The north of this circle is a period of sunshine which last for a period of about six months in the North Pole. Summer never rises in the winter solstice (December).

4 0
2 years ago
One of the 63.5-cm-long strings of an ordinaryguitar is tuned to produce the note {\rm B_3}(frequency 245 Hz) when vibrating ini
lubasha [3.4K]

Answer:

a,V=311.15m/s

b.246Hz

c.245Hz

d. 1.4m

Explanation:

One of the 63.5-cm-long strings of an ordinaryguitar is tuned to produce the note {\rm B_3}(frequency 245 Hz) when vibrating inits fundamental mode.

A.Find the speed of transverse waves on this string.B.If the tension in this string is increased by1.0%, what will be the new fundamental frequency ofthe string?C.If the speed of sound in the surrounding air is 344m/s, find the frequency of the sound wave produced in theair by the vibration of the {\rm B_3} string.D.If the speed of sound in the surrounding air is 344m/s, find the wavelength of the sound wave produced in theair by the vibration of the {\rm B_3} string

NOTE

speed is distance by the wave per time

frequency is the number of oscillation the wave front makes in one seconds

the wave speed is given by

v=\sqrt{F/U}

recall also that the wave speed is v=f lambda

for  a standing wave , we know the fundamental frequency of a string is

f1=v/2L

L=length of the string

f1=245Hz

V=?

L=0.635m

V=245*2*0.635

V=311.15m/s

b. tension in the string is increased by 1%

F2=F+1%

f2=101F%

substituting for F2 into this equation

v=\sqrt{F/U}

v2=\sqrt1.01F/U}

v2=\sqrt{1.01} v

v2=1.01^0.5*311.15m/s

v2=312.7m/s

for the new fundamental frequency we have

f2=312.7/2*0.635

f2=246Hz

c. the frequency of the sound wave equal the frequency of the string that created it

c. fs=245Hz

d. speed of sound in air344m/s

v=344m/s

v=f*lambda

lambda is the wavelength

344=245*lambda

344/245=1.40m

wavelength of string B3 is 1.4m

3 0
3 years ago
A web page designer creates an animation in which a dot on a computer screen has a position of r⃗ =[ 4.50 cm +( 2.90 cm/s2 )t2]i
VMariaS [17]

Answer:

V = (5.8cm/s)i, (4.7cm/s)j

Explanation:

Given :

r⃗ =[ 4.50 cm +( 2.90 cm/s2 )t2]i^+( 4.70 cm/s )tj^

To obtain the average velocity (V)

V = (r2 - r1) / (t2 - t1)

To obtain r1 and r2, substitute t1 = 0 and t2 = 2 respectively in the equation above

r1 = [ 4.50 cm +( 2.90 cm/s2 ) 0]i^+( 4.70 cm/s )0 j

r1 = 4.50 cm + 0 + 0 = (4.50cm)i + 0j

r2 = [ 4.50 cm +( 2.90 cm/s2 )2²]i^+( 4.70 cm/s )2 j

r2 = 4.50cm + (2.90 × 4)i + (4.70 × 2)j

r2 = (16.1cm)i + (9.4cm)j

V = [(16.1 - 4.50)i - (9.4 - 0)j] / 2 - 0

V = 11.6i / 2 ; 9.4j / 2

V = (5.8cm/s)i, (4.7cm/s)j

5 0
3 years ago
How is steam foremed
GenaCL600 [577]
Steam<span> is water in the gas phase, which is </span>formed<span> when water boils. </span>Steam<span> is invisible; however, "</span>steam<span>" often refers to wet </span>steam<span>, the visible mist or aerosol of water droplets </span>formed<span> as this water vapour condenses.
hope this helps plz give brainliest!</span>
4 0
2 years ago
Read 2 more answers
a rifle is used during the biathlon event in the Olympics the rifle has a mass of 2.5 kg the bullet has amass of 0.02 kg after t
Nataliya [291]
The momentum before is zero because nothing is moving. Note that because momentum is a conserved vector, the total momentum after the shot is also zero. You just have to add the products of mass and velocity in opposite directions. So the answer is zero
6 0
3 years ago
Read 2 more answers
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