3 years ago

It took Lightning McGreen 2.5 hours to travel

Physics

2 answers:

Helga [31]3 years ago

8 0

Answer:

you know the answer

Explanation:

Law Incorporation [45]3 years ago

4 0

Answer:

240km/h

Explanation:

speed=distance/time

speed=600/2.5

=240km/h

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a is any object that is launched into the air with an initial velocity and moves in the air only ander the influence of gravity

dexar [7]

Answer:

Projectile motion is the motion of an object thrown (projected) into the air. After the initial force that launches the object, it only experiences the force of gravity. The object is called a projectile, and its path is called its trajectory.

Explanation:

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3 years ago

Explain how if two cases are side by side on a shelf one an have more potential energy

Arlecino [84]

Potential energy = (mass) x (gravity) x (height).

Even if the two objects are at the same height, the one
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3 years ago

A person is sitting with one leg outstretched and stationary, so that it makes an angle of θ = 27.5° with the horizontal, as the

dangina [55]

here we will use the torque balance about the knee joint

here we can say that

$\tau_g = \tau_m$

here torque due to weight is given as

$\tau_g = 40.1 cos\theta*(l_1 + l_2)$

$\tau_g = 40.1 cos27.5*(0.105 + 0.150)$

$\tau_g = 9.07 Nm$

now torque due to applied force of muscle

$\tau_m = M*sin\alpha * l_1$

$\tau_m = M*sin30* 0.105$

now by torque balance we will have

$9.07 = M*0.5*0.105$

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3 years ago

What is the definition of binary star system

lakkis [162]

Is a system of two objects in space which are so close that their gravitational interaction causes them to orbit about a common center of mass.

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3 years ago

Read 2 more answers

5. Your friend tosses a ball into the air. The equation h = -5ť + 30t +10 models the height,

Naily [24]

Answer:

6.3s.

Explanation:

The height h is given by:

$h(t)=-5t^2+30t+10$

Setting the height h = 0 and using the quadratic formula to solve for t:

$0=-5t^2+30t+10\\0=t^2-6t-2\\t_1=3-\sqrt{11}= -0.3s\\t_2=3+\sqrt{11}=6.3s$

t₁ is physicly meaningless.

4 0

4 years ago