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3 years ago

An object is projected horizontally at 14.1 m/s from the top of a 195.0 meter cliff.

Physics

1 answer:

Roman55 [17]3 years ago

7 0

What does a physical map show?

the names of countries, states, and cities

the history of an area

the geographical features of an area

the rest stops and restaurants in an area

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These electromagnetic waves are the most energetic:

Nady [450]

The answer to number 1 is D and the answer for the second one is 2
^-^

6 0

3 years ago

An example of convection and conduction within a BBQ. I also accept diagrams but please write honestly or I will report.

qwelly [4]

Conduction could be the way in which heat is transferred through a sausage to get it up to cooked temperature. convection could be the air around the barbecue and the smell of the barbecue being carried on thermal convection currents. hope this is honest enough

7 0

3 years ago

Let the masses of blocks A and B be 4.50 kg and 2.00 kg , respectively, the moment of inertia of the wheel about its axis be 0.4

Free_Kalibri [48]

Answer:

Accelerations of both the sides is 0.6125 $m/s^{2}$ , A moves downwards whereas B moves upwards.

$\alpha$ =6.125 rad/ $s^{2}$

Tension on side A = 4.5 × g= 44.1 m/ $s^{2}$

Tension on side B= 2.0 × g= 19.6 m/ $s^{2}$

Explanation:

As both, the blocks A and B are attached due to the constraint they can only possess a single acceleration a.

Observe the figure attached, let the tension with Block A be $T_{2}$ and the tension attached with Block B be $T_{1}$ .

Tensions will be only be due to the weight of the blocks as no other force is present.

$T_{2}$ = 4.5 × g= 44.1 m/ $s^{2}$

$T_{1}$ = 2.0 × g= 19.6 m/ $s^{2}$

Now, lets make a torque equation about the center of the wheel and find the alpha

$T_{2}$ ×R- $T_{1}$ ×R= MI( Moment of Inertia of Wheel)× Alpha

where, R= Radius of the wheel=0.100m and

Alpha( $\alpha$ )= Angular acceleration of the wheel

MI of the wheel= 0.400 kg/ $m^{2}$

$(44.1-19.6)R=0.400\alpha$

$\alpha = \frac{24.5 * 0.100}{0.400}$

$\alpha$ =6.125 rad/ $s^{2}$

Acceleration = R × $\alpha$

= 0.1 * 6.125

=0.6125 $m/s^{2}$

Accelerations of both the sides is 0.6125 $m/s^{2}$ , A moves downwards whereas B moves upwards.

7 0

3 years ago

Straight line motion is hard to experience on Earth because:

nika2105 [10]

I think its friction and gravity change the motion hope this helps :)

3 0

3 years ago

A horizontal string fixed at both ends is oscillating in a standing wave pattern. Consider the vertical motion of a point on the

Naddika [18.5K]

Answer:

All of the choices are correct except the nodes, which don't move at all.

Explanation:

when a horizontal string fixed at both ends is oscillating in a standing wave pattern the antinodes move with simple harmonic motion while the node is stationary.

6 0

3 years ago