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Akimi4 [234]
3 years ago
15

What is the kinetic energy of a bike with a mass of 24 kg traveling at 3 m/s?

Physics
1 answer:
erastovalidia [21]3 years ago
5 0

Answer:

KE = 1/2mv^2

KE = 1/2(24)(3^2)

KE = 12(9)

KE = 108 J

Let me know if this helps!

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Two technicians are discussing electronic leveling systems. Technician A says that a weight should be placed in the vehicle as p
Ronch [10]

Answer:

C. Both A and B

Explanation:

<em>Electronic leveling systems: </em>These are automatic lifting jacks use for raising  wheels and vehicle when parked or when work is to be done on the vehicle engine underneath or on wheels. unlike the manual jacks it is very quick and efficient.

Both technician right, for Technician A, a weight may be use during the procedure for balancing and leveling when raising, and for Technician B, the sensor in the electronic leveling systems is adjustable to adjust the height so as to maintain balancing and levelling.

8 0
3 years ago
A big league hitter attacks a fastball! The ball has a mass of 0.16 kg. It is pitched at 38 m/s. After the player hits the ball,
Strike441 [17]
Momentum = (mass) x (velocity)
Original momentum before the hit = 
                   (0.16 kg) x (38 m/s) this way <==
               =             6.08 kg-m/s  this way <==
Momentum after the hit = 
                   (0.16) x (44 m/s) that way  ==>
               =           7.04 kg-m/s  that way ==>
Change in momentum = (6.08 + 7.04) =  13.12 kg-m/s  that way ==> .-----------------------------------------------
Change in momentum = impulse.
                                   Impulse = (force) x (time the force lasted)
                          13.12 kg-m/s  = (force) x (0.002 sec)
  (13.12 kg-m/s) / (0.002 sec)  =  Force
             6,560 kg-m/s² = 6,560 Newtons  =  Force    
                            ( about 1,475 pounds  ! ! ! )
 Hoped this helped!! ☺
4 0
3 years ago
The distance from Earth to the Sun is 1.0 _____.
natka813 [3]
<span>The distance from Earth to the Sun is 92.96 million miles, which is equal to 1 astronomical unit.

In short, Your Answer would be Option C

Hope this helps!</span>
5 0
3 years ago
What would the speed of each particle be if it had the same wavelength as a photon of violet light ( λ = 400.0 nm ) ?
Crazy boy [7]

To develop this problem we will use the DeBroglie relationship for which the wavelength is considered as

\lambda = \frac{h}{mv}

Where,

h = Planck's constant

m = mass

v = Velocity

\lambda = Wavelength

Rearranging the equation we have that the speed would be

v = \frac{h}{m\lambda}

Our given values are considered

\lambda = 400nm = 4*10^{-7}m

h = 6.626*10^{-34} J\cdot s

m = 1.673*10^{-24}g = 1.673*10^{-27}kg

The value of the mass varies, therefore its speed would be given as:

Proton (m=1.673*10^{-27}kg)

v = \frac{6.626*10^{-34}}{(1.673*10^{-27})(4*10^{-7})}

v = 0.99m/s

Neutron  (m=1.675*10^{-27}kg)

v = \frac{6.626*10^{-34}}{(1.675*10^{-27})(4*10^{-7})}

v = 0.988m/s

Electron (m=9.109*10^{-31}kg)

v = \frac{6.626*10^{-34}}{(9.109*10^{-31})(4*10^{-7})}

v = 1818.53m/s

Alpha particle (m=6.645*10^{-27} kg)

v = \frac{6.626*10^{-34}}{(6.645*10^{-27} )(4*10^{-7})}

v = 0.249m/s

4 0
3 years ago
Please help me lol :|
Bogdan [553]

Answer:

1 is community 2 habitat 4 producer 5 consumer 6 food chain 7 predator 8 prey sorry I don't know 4

6 0
3 years ago
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