Which of the following devices is associated with the reception of radio signals?

Answers

Answer 1

Answer: What are the "following" devices ? ?
I think they're a list of choices that you have but aren't sharing.

A few devices associated with the reception of various types of
radio signals include the resonant tank, the local oscillator, the
mixer, the detector, the coherer, the discriminator, the parabolic
reflector, the lecher wires, the audio transducer, the demultiplexer,
and ... my personal guess ... the 'antenna' or 'aerial'.

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Disregarding air resistance, what is the speed of a ball dropped from 12 feet just before it hits the ground? (Use 1 ft = 0.30 m, and use g = 9.8 m/s2.)

Answers

Since the ball is free-falling, you use this equation:
v^2 = 2gh
where v is the velocity
g is the acceleration due to gravity
h is the height at which the object is dropped from

Plugging in the values and converting ft to m,
v^2 = 2 (9.8) (12) (0.3)
v = 8.4 m/s

8.4 m/s have a nice day

Mass wasting _____. creates deltas and moraines changes the land by plucking is the movement of sediment by gravity transports rock up an incline by sliding or slumping

Answers

Answer: Is the movement of sediment by gravity.

Mass wasting is the movement of sediments generate due to the mass movement of rock, soil or other debris from a hilly or slopy region downwards due to the effect of gravity. This effect can be highly be observed during landslides. Agents like wind and water also promote this effect.

Mass wasting is the movement of sediment by gravity transports. Meaning the earth’s outer crust is being ‘wasted’ away on a ‘massive’ scale and falling to lower elevations. It is also a type of erosion and can make changes to the side of the mountain.

if a 1000 kg car is sent toward a cement wall with a speed of 14m/s and car stops in .08 seconds. What's the average force exerted on the car/

Answers

Answer:175000N

Explanation:f=m(v-u)/t

F=1000(14-0)/0.08

F=(1000×14)/0.08

F=14000/0.08

F=175000N

Adam applies an input force to the pulley as he pulls down to lift the object. As he does this, Adam wonders about how the pulley is helping him. How is the pulley helping Adam lift the object?a. All of these answers are correct.
b. A fixed pulley lowers the amount of force needed to do the same amount of work.
c. A fixed pulley increases the distance over which the force is applied.
d. A fixed pulley helps Adam change the direction of the effort force.

Answers

Explanation :

Adam applies an input force to the pulley as he pulls down to lift the object. As he does this, Adam wonders about how the pulley is helping him.

A pulley is a simple machine which always changes the direction of effort forces. It consists of a rope and a wheel.

The pulley can be of three types i.e. a fixed pulley, movable pulleys and combined-pulley systems.

Hence, the correct option is (d) " A fixed pulley helps Adam change the direction of the effort force ".

A fixed pulley changes the direction of the effort force, but not its magnitude.

Juanita, en medio de la cuarentena tuvo que salir de su casa por algunos artículos que necesitaba; utilizó su tapabocas y guantes, salió corriendo con velocidad de 3m/s a comprar, 3 kilogramos de arroz, dos litros de leche y 5 tapabocas. Para completar el total de las cosas, primero debe ir al supermercado que esta ubicado a 50 metros, en dirección 30 grados con respecto a la horizontal partiendo desde su casa, y de allí, salir para la droguería que se encuentra ubicada a 70 metros, dirección 150 grados desde el supermercado geográficamente con respecto a la horizontal. 1. Clasifique las cantidades escalares y las cantidades vectoriales del problema

Answers

Answer:

the scalar quantities in this exercise are: 3 kg rice, 2 liters of milk and 5 face masks, the rapides 3 m / s

the vector quantities are: the displacement to the supermarket and the drugstore

Explanation:

For this problem we are asked to find scalar quantities and vector quantities.

A scalar quantity is one that is described by a number with its units

A vector quantity is that described by a number (module), a direction and a sense, that is, they must be represented by a vector

the scalar quantities in this exercise are: 3 kg rice, 2 liters of milk and 5 face masks, the rapides 3 m / s

the vector quantities are: the displacement to the supermarket module 50 m directional 30º sense with respect to the horizontal.

The displacement to the drugstore modulo 70 m direction 150º with respect to the supermarket

What is the density of water?
gram/mL
(fill in the number)

Answers

Answer:

1.00 gram per milliliter (1 g/mL). In other words, 1 milliliter of water has a mass of 1 gram. A drop of water is 0.05 mL of water, so its mass would be 0.05 grams.

Explanation:

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