4 years ago

Please answer above in the picture thanks

Physics

1 answer:

Vera_Pavlovna [14]4 years ago

6 0

Answer:1.14.102 on the side of 10

Explanation:

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A conducting spherical shell with inner radius ‘a’ and outer radius ‘b’ has a positive charge Q located at its center. The total

kifflom [539]

Answer:deeeznuts

Explanation:

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3 years ago

A bus travels North for 10 miles then turns around and

Lesechka [4]

The displacement of the bus is 6.25 miles.

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4 years ago

A communications satellite transmits a radio wave at a frequency of 5 • 10^9 Hz. What is the signal's wavelength? Assume the wav

ycow [4]

Frequency f =5×10^9Hz
Speed of radio waves=speed of light c =3×10^8m/s

Wavelength λ = c/f
= 3×10^8/5×10^9
= 0.06m

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4 years ago

While standing on an open bed of a truck moving at 35 m/s, an archer sees a duck flying directly overhead. The archer shoots an

pashok25 [27]

Answer:

Part a)

$t = 20 s$

Part b)

$x = 700 m$

Part c)

Since horizontal speed of truck and the arrow is same so the arrow will strike at the position of the archer as they both moving with same speed

Explanation:

Part a)

As we know that the arrow moves with uniform acceleration in vertical direction so we can use kinematics in Y direction

Here we know that

$\Delta y = v_y t + \frac{1}{2}at^2$

since the arrow lands at the same height so its vertical displacement of whole motion is zero

so we will have

$0 = 98 t - \frac{1}{2}(9.8) t^2$

$0 = 98 t - 4.9 t^2$

$t = 20 s$

Part b)

Horizontal distance moved by the arrow

$x = v_x t$

here horizontal speed of arrow is same as that of speed of truck

so we will have

$x = 35 \times 20$

$x = 700 m$

Part c)

Since horizontal speed of truck and the arrow is same so the arrow will strike at the position of the archer as they both moving with same speed

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3 years ago

2) A man squeezes a pin between his thumb and finger, as shown in Fig. 6.1.

Salsk061 [2.6K]

<h3>pressure = force / area</h3>

<h3>force = 84 N</h3><h3>pressure = 6 × 10 - 5 = 55 m2</h3>

<h3>pressure = 84 / 55</h3>

<h3>pressure = 1.53 pascals</h3>

hope that helps and please tell me if i am wrong :)

8 0

3 years ago

Please answer above in the picture thanks​

Please answer above in the picture thanks