Satellite TV is broadcast from satellites that orbit 37,000 km above the earth's surface. Their antennas broadcast a 15 kW microwave signal that covers most of North America, an area of about 2.5 x 107 km².

Q: 6. The Eiffel Tower is built out of wrought iron and is 324 m tall. How much does it height change…

A: The given problem is based on thermal expansion of solids, to solve the given problem we will write…

Q: VFY² = 166.6 A cannon is crossing a lake at a velocity of 18 km/h [N 30° W] the current is this lake…

A: velocity of canon =  at an angle west of north.velocity of current = to the east.velocity of wind =…

Q: Problem 5: On a hot day, the freezers in a particular ice cream shop maintain an average temperature…

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Q: Estimate the average distance between molecules in air at 0.0°C and 5.10 atm. ______nm

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Q: 5. A block of mass me is at the top (h from the bottom) of a movable wedge with angle and mass mw.…

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Q: a negatively charged particle moves to the right when it enters a magnetic field in the plane of the…

A: The Right hand rule is used to determine the direction of the magnetic field-   Thumb: Velocity of…

Q: As a percentage of total body mass, the head is 10%, the two arms are 10%, the trunk is 56%, and the…

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Q: Astronauts visiting a new planet find a lake filled with an unknown liquid. They have with them a…

A: The objective of the question is to find the depth at which the pressure in the lake will be twice…

Q: What is the minimum speed that the golf balls need to be hit to have a chance at creating escape…

A: let's consider an object of mass  at the surface of a celestial body (e.g., Earth) with mass .The…

Q: Spherical proteins of an unknown radius have a density of 6.60 x 103 kg /m3 and are suspended in…

A: The density of protein The radius of centrifuge The angular velocity of centrifuge The terminal…

Q: what about answer of (ii)?

A: We can find this electric field easily by using Gauss law.

Q: A copper bar of thermal conductivity 401 W/(m·K) has one end at 114°C and the other end at 24.0°C.…

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Q: The main scale in a vernier instrument is graduated in millimeters, with the smallest division being…

A: The vernier scale is a forward vernier. This is because the 10 divisions on the vernier scale…

Q: pose an alpha particle (which has a mass of 6.645 × 10-27 kg) is moving at 0.21c. Randomized…

A: The relativistic momentum of alpha particle is given by

Q: The figure below represents a view from above of a rod of length L = 2.1 m and mass M = 3.0 kg on a…

A:

Q: An airplane is flying at 120 m/s [NE]. The pilot performs a 180° turn in 60.0 s without changing…

A: The amgnitude initial velocity of the airplane is u=120 m/s The time taken to change the velocity is…

Q: On one side of a diverging lens of focal length 36.3 cm, you position an object of height 2.79 cm…

A: Focal length of diverging lens is Height of object is Height of image is Find:Object distance.

Q: A 22 kg solid door is 220 cm tall, 92 cm wide. What is the door's moment of inertia for rotation on…

A: Mass of door, height of the door, Width of the door,

Q: 1. The hip is stabilized, in part, by the gluteus medius muscle. Figure (a) represents a person…

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Q: A long, narrow steel rod of length 2.5000 m at 27.1°C is oscillating as a pendulum about a…

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Q: In a mass spectrometer chlorine ions of mass 35u and 37u, each with charge +5e, are emitted from a…

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Q: As a percentage of total body mass, the head is 10%, the two arms are 10%, the trunk is 56%, and the…

A:

Q: 8. A scuba tank is filled with air to a gauge pressure of 225 atm when the air temperature is 22°C.…

A: When the volume is constant,"the pressure is directly proportional to the temperature"

Q: A vertical U-shaped tube is filled with a liquid of density ρ and the right end of the tube is…

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Q: (3) A bullet with mass 4.0 g and speed 650 m/s is fired at a block of wood with mass 0.095 kg. The…

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Q: Graph on graph paper - If you have a question or any information related to this experience, write…

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Q: what work must be done for a bubble to increase its radius from 5 cm to 8 cm? consider surface…

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Q: The average body temperature of a healthy person is  37.0°C.  Boltzmann's constant is 1.38 × 10−23…

A:

Q: A cylindrical bar magnet of radius 1.00 cm and length 10.0 cm has a magnetic dipole moment of…

A:

Q: A local AM radio station broadcasts at a frequency of 736 kHz. Calculate the wavelength at which it…

A: Frequency of the broadcasting wave is f = 736 kHz => f = 736*103  Hz

Q: A person exerts a horizontal force of 190 N in the test apparatus shown in the figure. Find the…

A: Torque is the product of force and displacement of force from reference point. At equillibrium,…

Q: A resistor with resistance R and a capacitor with capacitance C are connected in series to an AC…

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Q: A merry-go-round completes five rotations in five minutes. 10 What is the frequency of motion of the…

A: The number of cycles per second is called frequency. The SI unit for frequency is the hertz (Hz).…

Q: What is the magnitude of the orbital angular momentum L of Earth about the Sun? Use data from the…

A: The magnitude of the orbital angular momentum of Earth about the Sun can be calculated using the…

Q: A single-loop circuit consists of a 7.42 resistor, 12.0 H inductor, and a 3.3 μF capacitor.…

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Q: 31. A converging lens has a focal length of 10.0 cm. Locate the images for object distances of (a)…

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Q: 2. An air track is set to be perfectly level on a lab table, and the glider (total mass 120 grams)…

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Q: The 23-cm-diameter disk in (Figure 1) can rotate on an axle through its center. For general…

A: In the question given figure is

Q: A small block with mass 0.290 kg is attached to a string passing through a hole in a frictionless,…

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Q: A scuba diver is in fresh water has an air tank with a volume of 0.0100 m3. The air in the tank is…

A:

Q: Let's say the Earth moves around the Sun in a circular orbit with a constant speed (neither is…

A: The correct answer is B. The work done on the Earth is zero, since the force of gravity is always…

Q: In the figure, a very small toy race car of mass 60 g is released from rest on the loop-the-loop…

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Q: Electricity is generated in space vehicles from the heat produced by the radioactive decay of…

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Q: In front of a spherical convex mirror of radius 49.2 cm, you position an object of height 4.42 cm…

A: Radius of curvature ( R ) = 49.2 cm Focal length ( f ) = 49.2 / 2 = 24.6 cm Object height ( ho ) =…

Q: A flat loop of wire consisting of a single turn of cross-sectional area 20.0 cm² is perpendicular to…

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Q: During a fireworks display, arshell is shot into the air with an initial speed of 70 m/s at an angle…

A: The initial of the shell: The angle above the horizontal at which the shell is shot:

Q: a puck moves to the rigth over a cushion of air at a constant speed on an air hockey table. the puck…

A: The forces acting on the puck are shown in the figure above.

Q: The toroid with tightly wound 100 turns of wire is shown below, each carrying a current I = 3 A. If…

A:

Q: A capacitor with capacitance 4.00 µμF is connected to a(n) 3.50-V battery. (a) Find the charge on…

A: Capacitance is Voltage is Note:Find:(a) Charge on capacitor.(b) Voltage needed when the capacitor…

Q: certain man has a mass of 81 kg and a density of 993 kg/m3 (excluding the air in his lungs).…

A: The mass of the man is 81 kg.The density of the man is 993 kg/m3.

Electromagnetic Waves

Electromagnetic waves are waves that consist of magnetic field and electric field components perpendicular to each other. These field components are also perpendicular to the direction of propagation of the wave.