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3 years ago

Does the horizontal motion of the projectile depend on the vertical motion?

2 answers:

8 0

Projectile motion follows a curved path created because of the gravity acting on the otherwise eternally traveling horizontal object, Can not necessarily say it depends on it, but it is a defining aspect of the projectile motion definition.

bezimeni [28]3 years ago

4 0

No, resolve in both directions separately

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Suppose you increase your walking speed from 6 m/s to 15m/s in a period of 3 seconds what is your acceleration

choli [55]

Avg acceleration; under constant acceleration condition only; = Vf-Vi/time
a=Vf-Vi/time=(15m/s-6m/s)/(3s)=
(9m/s)/(3s)=3m/s^2

Hope this helps. Thanks.

7 0

3 years ago

A foam cup with negligible specific heat is used as a calorimeter. If you mix 175 g of water at 20.0°C and 125 g of water at 95.

lidiya [134]

Answer:

T = 51.25°C

Explanation:

Applying the law of conservation of energy, we get:

where,

m₁ = mass of cold water = 175 g

m₂ = mass of hot water = 125 g

T = Final temperature of the mixture = ?

Therefore,

$(175\ g)(T-20^oC) = (125\ g)(95^oC-T)\\\\T-20^oC = (0.7143)(95^oC-T)\\\\T(1+0.7143) = 20^oC+67.86^oC\\\\T = \frac{87.86^oC}{1.7143}$

8 0

3 years ago

When is the data considered valid

dexar [7]

Data’s conclusion is considered valid if the experiment validity is being controlled. With this conclusion validity, our data gathered and presented are considered a reasonable one. It is the most important types of validity. As what is said, by having conclusion validity, your data will be undoubtedly least considered since it is labelled as statistical and well-studied. Once you already mention the word statistics meaning it is studied and surveyed with the most of the human race and includes relationship in your data.

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4 years ago

Seed donation definition

Contact [7]

Answer:

Cow

Explanation:

Hr is a great place to work for

8 0

3 years ago

Read 2 more answers

16) The depth of pond is ....... if it seems to be 10m a) 10m b) 7.7m c) 13.3m d) 20m

Alexxandr [17]

The answer is d) 20 m.

The depth of pond is 20 m if it seems to be 10 m.

The formula relating real depth and app. depth :

$\boxed {A = \frac{R}{n}}}$

In this case, refractive index has to be an whole number for real depth to give a whole number for app. depth.

Then, real depth must be a multiple of 10, but refractive index cannot be 1
The option is 20 m

7 0

2 years ago