Choose the BEST answer to the following: As a blinking light source approaching you gains in speed, you see the frequency of flashes (a) increase. (b) decrease. (c) remain unchanged. (d) None of these.

Q: Can I have an answer for this one, please?

A: Given values:- Distance,(d)=8 m -----(1) Work done,(W)=301 J ----(2) Suppose (F) force is exerted by…

Q: What will happen to the object which will be less denser than water? more denser than water?

A: Step 1Density is defined as mass possessed by an object in a specified volume.

Q: Withrespect to its actual position, a bird on air appears to a fish in water____________ To be…

A: Answer- (1) To be nearer.

Q: Why are we able to see the moon? * O reflects the sun's light O makes its own light O glows in the…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: How long will it take a spaceship to accelerate from rest to half the speed of a sound at the rate…

A: Given data:  Initial velocity (Vi) = 0 ft/s Acceleration (a) = 193.2 ft/s2 Speed of sound = 186,000…

Q: When a light beam approaches you, its frequency is higher, and its wavelength is shorter. Does this…

A: SOlution: When a light beam approaches you, its frequency is higher, and its wavelength is shorter.…

Q: In aviation, it is helpful for pilots to know the cloud ceiling, which is the distance between the…

A:

Q: What are the restrictions on the orbit of a communications satellite if it is to appear motionless…

A: The period of the orbit of a satellite depends on its distance from the center of the earth.

Q: Choose the BEST answer to the following: At very high speeds, an object appears to an observer at…

A: The observation given in the question is based on length contraction and Doppler Effect when the…

Q: 30.0 45 40.0 80 50.0 |125 0.05 O 5.00 0.025 O 0.1428 O 0.2076 O 0.2856 O 0.1428

A: The slope of the given graph can be calculated using syntax for the SLOPE function in Microsoft…

Q: When a flashing light source approaches you, does the speed of light or the frequency of light—or…

A:

Q: observation deck of a skyscraper is 400 meters above the street level. How long will it take for a…

A: Given h = 400 m and u = 0 We know that  Acceleration due to gravity g = 9.8 m/s2

Q: iLy. O A. True O B. False

A:

Q: Mention what is the speed of light in space?

A: The speed/velocity of light is different in different media. Light is an electromagnetic radiation.…

Q: (121 – 0.327) - 119 13 2e - 5.4

A:

Q: If the speed of light is still faster than sound but not constant, what will happen to reality?

A: if speed of light is still faster than sound but not constant, (it means the speed of light changes…

Q: True or False: When a light source approaches us, there is an increase in the frequency we measure.…

A:

Q: At the end of 1 s, a horizontally fired bullet drops a vertical distance of 4.9 m from its otherwise…

A:

Q: ure. Briefly explain:

A: The melting point of a substance is the temperature at which it changes state from solid to liquid.…

Q: Can someone help clarify why my answers are wrong?

A: The equation for the x component of the vector is given by

Q: oof aluminu liba bively. Car

A: simple buoyant force formula is enough to solve the question easily.

Q: Why is flying at hypersonic speed so difficult?

A: The speed which greatly exceeds the sound’s speed is said to be the hypersonic speed. On moving…

Q: What is faster, the speed of light or sound?

A: The speed of the light is greater than the speed of the sound. The speed of the light is 3x108m/s…

Q: How far does light travel within 90 minutes? If light travels at 30,000 km/s.

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Q: velocity light = 1213m/s velocity heavy = 453m/s temperature= 300k   solve for both using the middle…

A: It is given that,

Q: 5 m 2,5 m 2m 0,6m B В 4m 1m 4m

A: The density is ρ=2.4 tons/m3 Calculating the mass of the plates as follows: m=ρ×V=2.4×4×5×0.6=28.8…

Q: Can pendulum clocks be used in artifical satellite ? Explain.

A: The pendulum clock works by the simple harmonic motion of the pendulum. The motion of the pendulum…

Q: What is the acceleration of the box?

A: The below figure represents the free body diagram of two masses m1 and m2 suspended over a pulley.

Q: A worker stands on top of a railroad car moving at constantvelocity and throws a heavy ball straight…

A: If car moving with constant velocity on top of rail road  every body in car also having same…

Q: 05

A: Let us first assume two points a and b in an electric field due to charge q. Some amount of work is…

Q: Jane observes a spaceship fly past her position at a constant velocity. Penny is onboard spaceship.…

A: Required :: Rate of flashlight observed by stationary observer.

Q: What answer would I put for the three questions in the picture?

A: Here, we have to calculate the free body diagram.

Q: 10 kN 5m 20 kN 450 Sm 2, 5m 10m 60° 40 kN A 2m 300 30 kN

A:

Q: An observer watching sailing ship at sea notes that the ship appears to be sinking as it moves…

A: This observation best explain with :    As ship is moving away from observer it appears to sink is…

Q: tronaut on a rocket ship is headed straight for another server is standing on Earth. If they both…

A: The velocity of light is the same in all inertial frames of reference.  Therefore both the persons…

Q: Light changes its energy when it “falls” in a gravitational field. This change in energy is not…

A: When the beam of photons or light falls inside the region where the gravitational field is active,…

Q: he path that led to Albert Einstein's development of Special Theory of Relativity was

A: A-1,4 B-5 C-6 D-3 E-2

Q: Choose the BEST answer to the following: If you were to travel at a speed close to that of the speed…

A: As per The Principle of Special Theory of Relativity; the laws of physics are the same in each…

Q: The sun is almost 400 times farther from Earth than is the moon. How long does light from the moon…

A: Given:Speed of the light = 3 X 108 m/sDistance between the moon and the earth = Distance between the…

Q: What do you call a wiggle in space and time?

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Q: the answer is not clear

A: