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Varvara68 [4.7K]
2 years ago
5

Help in physics please. Need asap :(((​

Physics
1 answer:
uranmaximum [27]2 years ago
6 0

Answer:

which class you are studying hear the everything is based on the tangent line I didn't even handle this I am sorry

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Calculate the kinetic energy of an 80,000 kg airplane that is flying with a velocity of 167 m/s.
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Answer:

1115560000 J

Explanation:

1/2 * 80,000 * 167^2 m/s = 1115560000 J

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2 years ago
How do you calculate resistance with coulombs, time and J's?
Mars2501 [29]
Hey user


The energy E in joules (J) is equal to the voltage V in volts (V), times the electrical charge Q in coulombs (C):

E(J) = V(V) ×<span> Q</span>(C)

So

joule = volt × coulomb

or

J = V × C

Example

What is the energy in joules that is consumed in an electrical circuit with voltage supply of 15V and charge flow of 4 coulombs?

E = 15V × 4C = 60J

4 0
3 years ago
During summer break, Jamie's family went camping in the mountains. There were no roads to their camp, 8 miles away, and it took
liraira [26]

The Answer is B

hope this helps

5 0
3 years ago
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A certain race track is four and a half kilometers long. The winning driver in the race drove his car around the track TWICE in
Vika [28.1K]

he drove 3 kilometers every minute

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3 years ago
A child of mass m is standing at the edge of a carousel. Both the carousel and the child are initially stationary. The carousel
suter [353]

Answer:

the angular velocity of the carousel after the child has started running =

\frac{2F}{mR} \delta t

Explanation:

Given that

the mass of the child = m

The radius of the disc = R

moment of inertia I = \frac{1}{2} mR^2

change in time = \delta \ t

By using the torque around the inertia ; we have:

T = I×∝

where

R×F = I × ∝

R×F = \frac{1}{2} mR^2∝

F = \frac{1}{2} mR∝

∝ = \frac{2F}{mR}           ( expression for angular  angular acceleration)

The first equation of motion of rotating wheel can be expressed as :

\omega = \omega_0  + \alpha  \delta t

where ;

∝ = \frac{2F}{mR}    

Then;

\omega = 0+ \frac{2F}{mR} \delta t

\omega =  \frac{2F}{mR} \delta t

 

∴ the angular velocity of the carousel after the child has started running =

\frac{2F}{mR} \delta t

7 0
3 years ago
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