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3 years ago

When in orbit, a satellite such as the space shuttle is

Physics

2 answers:

My name is Ann [436]3 years ago

8 0

When in orbit, a satellite such as the space shuttle s <span>in non-accelerated motion. </span>

JulijaS [17]3 years ago

7 0

Answer: B

Explanation:

When in orbit, a satellite is hold in position thanks to, between others, the earth's gravity. So the C option is discarded.

A projectile is an object thrown by the exertion of some force, like a bullet or a cannonball.

A satellite is placed in some orbit, so he can rotate the earth. The movement of the satellite is non-accelerated motion, because the only forces that act on the satellite are the forces that hold him in orbit.

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In MCG, the coil is wound by wire making 50 turns. If the radial magnetic field has a density of 0.2 Tesla, what would be the ma

vekshin1

Answer:

From the formular of magnetic force:

$F= BIl$

• F » magnetic force, B » magnetic flux density, I » current, l » length [ assume l = 1 m ]

$F = (0.2 \times 5 \times 1) \\ = 1 \: newton$

6 0

3 years ago

Read 2 more answers

A 15kg object strikes the ground with 2000J of kinetic energy after freely falling from rest. How far above the ground was the o

arsen [322]

Answer:

Explanation:

Find the final velocity at which it struck the ground by using the kinetic energy formula.

$KE=\frac{1}{2} mv^2$

$2000=\frac{1}{2} (15)v^2\\v=16.33$

Now use kinematics to solve for the vertical displacement. We were given the initial velocity and acceleration can be assumed to be 9.8

$V^2=V^2_i+2a(y_f-y_i)\\16.33^2=0^2+2(9.8)(y_f-y_i)$

Δy = 13.6 meters

8 0

3 years ago

A magnetic field of 0.080 T is in the y-direction. The velocity of wire segment S has a magnitude of 78 m/s and components of 18

Annette [7]

Answer:

Part a)

Induced EMF when length vector is along Z direction is 0.72 V

Part b)

Induced EMF when length vector is along Y direction is ZERO

Explanation:

As we know that the motional EMF induced in the wire is given as

$E = (v\times B). L$

As we know that

$v = 18\hat i + 24\hat j + 72\hat k$

$B = 0.080 \hat j$

$L = 0.50 \hat k$

now we have

$\vec v \times \vec B = 1.44\hat k - 5.76 \hat i$

so we have

$E = 1.44 (0.50) = 0.72 V$

If the length vector is along Y direction then we have

$L = 0.50 \hat j$

so again we have

$\vec v \times \vec B = 1.44\hat k - 5.76 \hat i$

so we have

EMF = 0

6 0

3 years ago

What was one of the main benefits to the use of the icebox for cooling food? Select all that apply. provided a source for cold w

cupoosta [38]

The correct answers are:

It slowed microbial growth in food.
It allowed people to store a few days of food in their homes.

Hope I helped! If so, please feel free to rate my answer and consider giving it the Brainliest.

4 0

2 years ago

Read 2 more answers

Suppose that two point charges, each with a charge of +1.00 C, are separated by a distance of 1.0 m. If the distance between the

Aleksandr-060686 [28]

Given:

The magnitude of each charge is q1 = q2 = 1 C

The distance between them is r = 1 m

To find the force when distance is doubled.

Explanation:

The new distance is

$\begin{gathered} r^{\prime}=\text{ 2r} \\ =2\times1 \\ =2\text{ }m \end{gathered}$

The force can be calculated by the formula

$F=k\frac{q1q2}{(r^{\prime})^2}$

Here, k is the constant whose value is

$k=9\times10^9\text{ N m}^2\text{ /C}^2$

On substituting the values, the force will be

$\begin{gathered} F=9\times10^9\times\frac{1\times1}{(2)^2} \\ =2.25\times10^9\text{ N} \end{gathered}$

7 0

1 year ago