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3 years ago

If the ball shown in the figure lands in 1.0 s, about what height was it thrown from?

Physics

2 answers:

Scrat [10]3 years ago

6 0

Answer:

Explanation:

Rus_ich [418]3 years ago

4 0

Answer:

Should be 5 m

Explanation:

hope it helps

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To practice Problem-Solving Strategy 27.1: Magnetic Forces. A particle with mass 1.81×10−3 kgkg and a charge of 1.22×10−8 CC has

Roman55 [17]

Answer:

The magnitude of the acceleration is $a = 0.33 m/s^2$

The direction is $- \r k$ i.e the negative direction of the z-axis

Explanation:

From the question we are that

The mass of the particle $m = 1.8*10^{-3} kg$

The charge on the particle is $q = 1.22*10^{-8}C$

The velocity is $\= v = (3.0*10^4 m/s ) j$

The the magnetic field is $\= B = (1.63T)\r i + (0.980T) \r j$

The charge experienced a force which is mathematically represented as

$F = q (\= v * \= B)$

Substituting value

$F = 1.22*10^{-8} (( 3*10^4 ) \r j \ \ X \ \ ( 1.63 \r i + 0.980 \r j )T)$

$= 1.22 *10^{-8} ((3*10^4 * 1.63)(\r j \ \ X \ \ \r i) + (3*10^4 * 0.980) (\r j \ \ X \ \ \r j))$

$= (-5.966*10^4 N) \r k$

Note :

$i \ \ X \ \ j = k \\\\j \ \ X \ \ k = i\\\\k \ \ X \ \ i = j\\\\j \ \ X \ \ i = -k \\\\k \ \ X \ \ j = -i\\\\i \ \ X \ \ k = - j\\$

Now force is also mathematically represented as

$F = ma$

Making a the subject

$a = \frac{F}{m}$

Substituting values

$a =\frac{(-5.966*10^4) \r k}{1.81*10^{-3}}$

$= (-0.33m/s^2)\r k$

$= 0.33m/s^2 * (- \r k)$

6 0

4 years ago

Consider a pipe of length L that is open at both ends. What are the wavelengths of the three lowest-pitch tones produced by this

lina2011 [118]

Answer:

2 L, L, 2 L/3

Explanation:

For a pipe of length l open at both ends, the length of the pipe is given by :

$l=\dfrac{n\lambda}{2}$

$\lambda=\dfrac{2l}{n}$

For first pitch tone, n = 1

$\lambda_1=2l$

For first pitch tone, n = 2

$\lambda_2=\dfrac{2l}{2}$

$\lambda_2=l$

For first pitch tone, n = 3

$\lambda_3=\dfrac{2l}{3}$

So, the wavelengths of the three lowest-pitch tones produced by this pipe are 2 L, L, 2 L/3 respectively. Hence, the correct option is (d)

8 0

3 years ago

Are these bones axial, appendicular<br> or both?

Rom4ik [11]

Answer:

Axial and Appendicular Skeletons The axial skeleton forms the central axis of the body and consists of the skull, vertebral column, and thoracic cage. The appendicular skeleton consists of the pectoral and pelvic girdles, the limb bones, and the bones of the hands and feet. Figure 6.41.

Explanation:

6 0

3 years ago

Trevor and Nick are taxi drivers. Trevor drives a taxi using diesel oil while Nick drives a taxi using LPG. Whose taxi will caus

Natalija [7]

Answer:

Trevor's taxi would cause higher levels of air pollution

Explanation:

Trevor's taxi use diesel oil.

Diesel is less cleaner than LPG.

Compared to automotive pollution from petrol and diesel, pollutants from LPG-driven cars include lower amounts of petroleum hydrocarbons, nitrogen oxides , sulphur oxides, ozone contamination and particulate matter.

8 0

4 years ago

A stone is thrown vertically upward from the roof of the building. Does the position of the stone depend on the location chosen

mel-nik [20]

Yes it depend course you throw the stone at the roof it can't came course it in the roof

7 0

4 years ago

If the ball shown in the figure lands in 1.0 s, about what height was it thrown from? ​

If the ball shown in the figure lands in 1.0 s, about what height was it thrown from?