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Rom4ik [11]
3 years ago
15

Mars Rover When the Mars rover was deployed on the surface of Mars in July 1997, radio signals took about 12 minmin to travel fr

om Earth to the rover.
How far was Mars from Earth at that time?
Physics
1 answer:
goblinko [34]3 years ago
6 0

Answer:

s = 2.16 x 10¹¹ m

Explanation:

Since, the waves travelling from Earth to the Mars rover are electromagnetic. Therefore, there speed must be equal to the speed of light. So, from the equation given below:

s = vt

where,

s = the distance between Earth and Mars = ?

v = speed of the wave = speed of light = 3 x 10⁸ m/s

t = time taken by the radio signals to reach the rover from Earth

t = (12 min)(60 s/1 min) = 720 s

Therefore,

s = (3 x 10⁸ m/s)(720 s)

<u>s = 2.16 x 10¹¹ m</u>

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In an "atom smasher," two particles collide head on at relativistic speeds. If the velocity of the first particle is 0.741c to t
USPshnik [31]

Answer:

W_x = 0.9156\ c

Explanation:

given,

velocity of particle 1 = 0.741 c to left

velocity of second particle = 0.543 c to right

relative velocity between the particle = ?

for the relative velocity calculation we have formula

W_x = \dfrac{|u_x - v_x|}{1-\dfrac{u_xv_x}{c^2}}

u_x = 0.543 c

v_x = - 0.741 c

W_x = \dfrac{0.543 c - (-0.741 c)}{1-\dfrac{(0.543 c)(-0.741 c)}{c^2}}

W_x = \dfrac{0.543 c +0.741 c)}{1+\dfrac{(0.543)(0.741)c^2}{c^2}}

W_x = \dfrac{1.284c}{1+0.402363}

W_x = 0.9156\ c

Relative velocity of the particle is W_x = 0.9156\ c

5 0
3 years ago
Suppose a parachutist lands on a high-voltage wire and grabs the wire as she prepares to be rescued.(a) Will she be electrocuted
Kamila [148]

Suppose a parachutist lands on a high-voltage wire and grabs the wire as she prepares to be rescued, she will not be electrocuted.

<h3>What is Voltage?</h3>

This is referred to as the difference in electric potential between two points or the work done which is needed per unit to move a charge between two points in a circuit.

If she grabs the wire as she prepares to be rescued, she will not be electrocuted because the net electrical potential will be 0.

In a situation where the wire breaks as she holds on to it then she will be electrocuted.

Read more about Voltage here  brainly.com/question/1176850

#SPJ4

6 0
2 years ago
What is the purpose of the Catapult?
Irina-Kira [14]
To throw stuff. Like in the old'n days they used them to destroy castles.
3 0
3 years ago
A rocket blast off and moves away from the earth. How is the rocket affected by the earth's gravitational pull as it gets furthe
Yuki888 [10]
Gravitational forces between two objects decrease as the objects
get farther apart. 

That's a big part of the reason why the Earth attracts us with more
force than Jupiter does.
5 0
4 years ago
Read 2 more answers
How did the heliocentric theory differ from the geocentric theory
cricket20 [7]

Answer:

Geocentric theory: Earth is the center of the universe.

Heliocentric theory: The Sun is the center of the universe.

Explanation:

The geocentric theory was formulated by Aristotle and says that the earth is the center of the universe and the other planets and stars including the sun revolve around it.

On the other hand, Copernicus with his heliocentric theory states that the sun is the center of the universe and the planets revolve around it.

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