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Flura [38]
3 years ago
5

(A)

Physics
1 answer:
AveGali [126]3 years ago
4 0
What you have to show us a photo or else we don’t know
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SCIENCE HELP!!!!!!!!!!!!!!!!!!!!!!!
Alex Ar [27]
Electrical > light,sound and thermal
8 0
3 years ago
Acceleration causes a shift of weight to the ______.
marta [7]
Vehicle weight shifts can be backward forward. In this particular case accelerating to fast would cause a shift of weight backwards. Breaking too quickly on the other hand would cause weight to shift forward. You have seen this while in a car or a bus at the traffic light. As the vehicle breaks you are pulled forward as it starts moving you are pulled backwards.  
7 0
3 years ago
A force that varies with time is applied to an object. The force increases linearly from zero to twenty-four newtons during the
harkovskaia [24]

Answer:

144Ns

Explanation:

Impulse is the product of force and change in time or a measure of the change in momentum. Mathematically, Impulse is given as

J = FΔt

Where

J = Impulse,

F = Force,

Δt = change in time.

Due to the varying force, we know that the impulse varies at different points in the motion. Hence, the Net Impulse will be the addition of the individual impulses, i.e.

J = ΣJᵢ

J = J₁ + J₂ + J₃

J = F₁Δt₁ + F₂Δt₂ + F₃Δt₃

=> J = (24*2) + (24*4) + (0*2)

J = 48 + 96 + 0

J = 144 Ns

4 0
3 years ago
A wheel has a constant angular acceleration of 1.8 rad/s2. During a certain 4.0 s interval, it turns through an angle of 45 rad.
tankabanditka [31]

Answer:

4.25 s

Explanation:

Given:

angular acceleration'α'=  1.8 rad/s²

angle 'θ'= 45 rad

time 't'= 4s

initial angular velocity 'w_{o}'=0rad^{-1}

as we know that,

θ= w_{1}t + \frac{1}{2} \alpha t^{2}

45 = 4 w_{1} + (0.5 x 1.8 x 16)

45- 14.4 = 4 w_{1}

30.6 = 4 w_{1}

w_{1}= 7.65 rad^{-1}

Next is to find t by using the equation

w_{1} =  w_{o} + \alpha t_{1}

7.65= 0 + (1.8)t_{1}

t_{1}= 7.65/1.8

t_{1}= 4.25 s

Therefore, At the start of 4s interval the motion is at 4.25 second

7 0
4 years ago
What is the force on a 1670kg elevator accelerating at 6m/s square?
marshall27 [118]

As per Newton's 2nd law

we know that

F = ma

it is product of mass and acceleration

here we know that

m = 1670 kg

also we know that

a = 6 m/s^2

so from above equation we have

F = 1670 * 6

F = 10020 N

so the force here will be 10020 N

7 0
3 years ago
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