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Yakvenalex [24]
3 years ago
5

What are the postulates of STR?

Physics
1 answer:
Dafna11 [192]3 years ago
6 0

Answer:

The laws of physics take the same form in all inertial frames of reference. As measured in any inertial frame of reference, light is always propagated in empty space with a definite velocity c that is independent of the state of motion of the emitting body.

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A body of mass 10kg has a height of 200cm, calculate the potential energy. (Take g =
Nastasia [14]

The potential energy of the body is "200 Joule".

According to the question,

Mass,

  • m = 10 kg

Height,

  • h = 200 cm

or,

           = 2 m

  • g = 10 m/s⁻¹

As we know,

→ The potential energy will be:

= mgh

By putting the given values, we get

= 10\times 10\times 2

= 200 \ Joule

Thus the above answer is right.

Learn more about potential energy here:

brainly.com/question/23859978

5 0
3 years ago
Read 2 more answers
A puck moves 2.35 m/s in a -22.0 direction. A hockey stick pushes it for 0.215 s, changing its velocity to 6.42 m/s in a 50 degr
Yuri [45]

Answer:

48.9 is the answer I think !

6 0
3 years ago
A car (mass = 1090 kg) is traveling at 30.4 m/s when it collides head-on with a sport utility vehicle (mass = 2880 kg) traveling
Thepotemich [5.8K]

Answer:

The sport utility vehicle was traveling at V2= 11.5 m/s.

Explanation:

m1= 1090 kg

V1= 30.4 m/s

m2= 2880 kg

V2= ?

m1*V1 = m2*V2

V2= (m1*V1)/m2

V2= 11.5 m/s

7 0
4 years ago
A cannon is shot from a boat at 185 m/s at a 52.2 angle. How far away does it land?
PilotLPTM [1.2K]

Answer:

3380 m

Explanation:

3 0
2 years ago
A circuit has a 10 Ω resistor connected to a 1.5 V dry cell. What is the current that can flow in the circuit?
ludmilkaskok [199]

Here is the highly detailed, arcane, complex, technical form of Ohm's Law that is needed in order to answer this question  ===>  I = V / R  .

Current = (voltage) / (resistance)

Current = (1.5 V) / (10 Ω)

<em>Current = 0.15 Ampere</em>

8 0
3 years ago
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