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3 years ago

What happens when the data in an investigation does not support the origanal hypothesis

Physics

1 answer:

alexgriva [62]3 years ago

5 0

Answer: The scientist gives up and starts an investigation on a new topic.

Explanation:

The data is altered so that it supports the original hypothesized. The data is then altered so that it supports the original hypothesis.

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A relief airplane is delivering a food package to a group of people stranded on a very small island. The island is too small for

strojnjashka [21]

speed of the plane is given as

$v = 442 km/h = 122.8 m/s$

height of the plane is

$h = 575 m$

acceleration due to gravity is

$g = 9.80 m/s^2$

part a)

when package is dropped its vertical speed is zero so we can use kinematics to find the time of drop

$\delta y = v_y * t + \frac{1}{2}gt^2$

$575 = 0 + \frac{1}{2}*9.80*t^2$

$t = 10.83 s$

Part b)

Horizontal distance moved by the package is given by

$\delta x = v_x * t$

$\delta x = 122.8 * 10.83$

$\delta x = 1330.3 m$

Part c)

final speed in x direction

$v_x = 122.8 m/s$

final speed in y direction

$v_y = 9.8*10.83 = 106.13 m/s$

so net speed as it hit the ground will be

$v = \sqrt{v_y^2 + v_x^2}$

$v = \sqrt{122.8^2 + 106.13^2}$

$v = 162.3 m/s$

5 0

3 years ago

Heat thansfer that happens from a distance is called:

yaroslaw [1]

B. convection is the answer

7 0

3 years ago

A step-up transformer has 50 turns on its primary coil and 2000 turns on its secondary

ryzh [129]

Answer:

Vs= 6000 v

Ip=9.6 A

Explanation:

Ns/Np = Vs/Vp

2000/50 = Vs/150

40 x 150 = Vs

Vs= 6000 v

Vs/Vp=Ip/Is

6000/150=Ip /0.24

Ip=9.6 A

7 0

3 years ago

1.what is the contour interval of this map? <br><br> 2.what is the highest elevation in this map?

alekssr [168]

Highest elevation is 349
Contour interval is 50

5 0

4 years ago

Read 2 more answers

20 kg rodsis on the edge of a 80 m high de What is the rodes gracional potencial energy?

quester [9]

Answer:

Gpe = 15680 Joules

Explanation:

Gravitational potential energy (GPE) is an energy possessed by an object or body due to its position above the earth.

Mathematically, gravitational potential energy is given by the formula;

G.P.E = mgh

Where;

G.P.E represents potential energy measured in Joules.

m represents the mass of an object.

g represents acceleration due to gravity measured in meters per seconds square.

h represents the height measured in meters.

Given the following data;

Mass = 20 kg

Height = 80 m

We know that acceleration due to gravity is equal to 9.8 m/s²

To find the gravitational potential energy;

Gpe = mgh

Gpe = 20 * 80 * 9.8

Gpe = 15680 Joules

7 0

3 years ago