A stationary radar device emits a pulse at 10 Gigahertz. A vehicle is coming towards the...

A stationary radar device emits a pulse at 10 Gigahertz. A vehicle is coming towards the device and reflects a signal with a difference of 1.33 kHz. Is this signal a lower or higher frequency? What is the speed of the vehicle?

Expert Solution

genius_generous answered 2 years ago

A motorist is targeted by police radar when approaching a traffic control post. The radar emits...

A motorist is targeted by police radar when approaching a traffic control post. The radar emits at the frequency f=2.5 x 109 Hz and receives the reflected wave at a frequency of 250 Hz higher. Calculate the speed of the car. Determine the expression of the wave equations for the electric and magnetic fields emitted by the radar. The average intensity is 40 W/m2. The wave propagates in the direction of Y>0. The electric field of the wave is maximum...

A 193nm-wavelength UV laser for eye surgery emits a 0.500mJ pulse.

A 193nm-wavelength UV laser for eye surgery emits a 0.500mJ pulse. (a) How many photons does the light pulse contain?

Alice is moving wit 0.8c towards a mirror. She sends a light pulse towards the mirror...

Alice is moving wit 0.8c towards a mirror. She sends a light pulse towards the mirror when she is at a distance L from the mirror. Bob is at rest with respect to the mirror and is observing this experiment. After how long will Alice receive the reflected pulse, as measured by Alice and Bob?

an L band radar operating at 1.25GH uses a peak pulse power of 3MW and must...

an L band radar operating at 1.25GH uses a peak pulse power of 3MW and must have a range of 185.2km for objects whose radar cross section is 1m^2. If the minimum receivable power of the receiver could have , assuming it to be full paraboloid with k= 0.65?

You work for a company that makes vehicle safety systems, such as radar, on-board cameras, and...

You work for a company that makes vehicle safety systems, such as radar, on-board cameras, and the ever-present back-up beeper. To reduce costs on your most mature product, the back-up beeper, you are considering moving production out of the United States. You are considering Mexico, Philippines, and Singapore. You are interested in road infrastructure, port infrastructure, technological readiness, and wages. 1. Compare the four countries on these dimensions. Include the United States in your analysis as well as a baseline....

Consider the situation where one IOLab device rolls into another stationary IOlab device and they stick...

Consider the situation where one IOLab device rolls into another stationary IOlab device and they stick together and they roll off together. When answering the following questions, answer them specifically for this situation. How could you calculate the total momentum before the collision? How could you calculate the total momentum after the collision? How could you calculate the total kinetic energy before the collision? How could you calculate the total kinetic energy after the collision? (Extra...

A bird is flying directly toward a stationary bird-watcher and emits a frequency of 1380 Hz....

A bird is flying directly toward a stationary bird-watcher and emits a frequency of 1380 Hz. The bird-watcher, however, hears a frequency of 1450 Hz. What is the speed of the bird, expressed as a percentage of the speed of sound?

A bird flying directly toward a stationary bird-watcher emits a cry at a frequency of 1,030Hz....

A bird flying directly toward a stationary bird-watcher emits a cry at a frequency of 1,030Hz. The bird-watcher hears a frequency of 1120 Hz. The speed of sound on this day is 341m/s. a,What is the speed of the bird? b, Now there are two birds emitting a cry at 1,030Hz. Both are flying east, one on each side of the birdwatcher. One is flying at 23m/s while the other is flying at 33m/s. Is there anything the birdwatcher can...

FOR PULSE OXIMETER: 1. The overall purpose of the device and clinical condition it looks to...

FOR PULSE OXIMETER: 1. The overall purpose of the device and clinical condition it looks to diagnose or treat 2. What type of biosignal the device records and how that signal originates in the body and where (comment on SI units, range, variability) 3. The underlying electronic circuitry and rationale behind the signal processing 4. Typical sensitivity/specicity performance of the device (PLEASE BE SPECIFIC AND WRITE OUT DETAILED ANSWERS.)

Que1.Consider two balls of identical mass. If ball 1 is moving to the right towards stationary...

Que1.Consider two balls of identical mass. If ball 1 is moving to the right towards stationary ball 2 at 1.0 m/s and the two balls collide elastically, what will the final velocities of both balls be? (Hint: consider this simulation.) Que 2.If the same two balls again undergo a collision, but this time the collision is inelastic, what will the final velocities of both balls be? Que 3.What are the conditions for elastic and inelastic collisions? Que 4.Explain how the...

Question