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3 years ago

Which equation will tell you the acceleration of the object?

Physics

1 answer:

zvonat [6]3 years ago

6 0

Answer:

In summation, acceleration can be defined as the rate of change of velocity with respect to time and the formula expressing the average velocity of an object can be written as: a =Δ v/ Δt The other 4 equations: d = vit+ (1/2) at2

Explanation:

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Dinah is playing cards with her friends, and it is her turn to deal. A card with a mass of 2.3 g slides 0.35 m along the table b

Inga [223]

Answer:

soln,

=2.3+0.35-0.24

=2.41 answer

4 0

3 years ago

A 25-turn circular coil of wire has diameter 1.00 m. It is placed with its axis along the direction of the Earth’s magnetic fiel

slava [35]

Answer:

The magnitude of average emf is 9.813 mV.

Explanation:

Given that,

Number of turns = 25 turns

Diameter = 1.00 m

Magnetic field = 50.0μm

Time = 0.200 s

Angle = 180°

We need to calculate the area of the coil

Using formula of area

$A=\pr r^2$

$A=\pi\times(\dfrac{1.00}{2})^2$

$A=0.785\ m^2$

We need to calculate the average emf

Using formula of emf

$E=NAB\cos\theta$

$E=NA(\dfrac{B\cos0^{\circ}-B\cos180^{\circ}}{dt}$

$E=\dfrac{2NA}{dt}$

Where, N = number of turns

A = Area

B = magnetic field

Put the value into the formula

$E=\dfrac{2\times25\times0.785\times50.0\times10^{-6}}{0.200}$

$E=9.813\ mV$

Hence, The magnitude of average emf is 9.813 mV.

3 0

4 years ago

The force per meter between the two wires of a jumper cable being used to start a stalled car is 0.244 N/m. (a) What is the curr

MakcuM [25]

Answer: current I is 144amp(A)

Explanation: The force per lenght F/L, current l, and separation distance r are related by the formula

F/L = permeability of space* I²/2*pi*r

Permeability of free space is 1.257*EXP {-6} Henry/meter

F/L is 0.244 N/m, pi is 3.142,

r is 1.7cm which is equal to 0.017meter.

I is what we are looking for.

Now we have after substitution,

0.244

= 1.257*EXP {-6} * I²/(2*3.142*0.017)

After cross multiplying and making I² subject of formula we have,

0.0261/(1.257*EXP {-6}) = I²

I = √{20736.7} =144ampere(A)

That means in each of the jumper wire there is 144amp(A)

8 0

3 years ago

How does energy transform from one form to another?

Sliva [168]

Energy can only be converted from one form to another

eg kinetic energy is converted to heat energy

4 0

3 years ago

Read 2 more answers

A motorcycle starts at rest and accelerates at a rate of 3 meters per second squared (m/s2) over a time period of 5 seconds (s).

Alex787 [66]

Final velocity = 3 x 5 = 15 m/s

5 0

3 years ago