a state highway patrol car radar unit uses a frequency of 9.00*10^9 Hz. What frequency difference will the unit detect from a car approaching a parked patrol car with a speed of 28.6m/s?
Q: Calculate the amount of work done if a 300 N object is lifted to a height of 2.5 m.
A: Given that Weight of object F = 300 N Height h = 2.5 m
Q: About how many cups of coffee you make with 569,600 J of energy
A: It depends on room temperature, let room temperature is 22 degree celsius. H=mc∆T Where c specific…
Q: Exergy (Work Potential) Associated with Kinetic and Potential Energy.
A:
Q: Energy.gov stated by the end of 2013, the United States’ wind power capacity provided enough…
A: Capacity of electricity generated by wind power = 16 million homes Capacity of electricity used =…
Q: QUESTION 7 If R =8.10, R =-10.8, find 0 = R 19 Ry Rx I 1 122 degrees. Make sure your answer is a…
A: Rx=8.10 Ry=10.8 (downwards)
Q: Example of energy density in daily lives
A: Density is used in our everyday lives all the time for example we used density for balloons since…
Q: (1). A cube of side 0.25 m is placed in a uniform magnetic field whose x, y, z- components are 3.5…
A: The answer is given below
Q: 26. The energy levels for a Bohr atom are shown below. -0.54 ev -0.85 ev -1.51 ev n = 3 -3.40 ev n =…
A:
Q: 3. Eric Clapton plucks a C on a guitar string, which causes a fundamental frequency of 261 Hz. The…
A: Given that v=400m/s, f=261Hz and linear density=0.417g/m
Q: 9. Which of the following will increase the amount of energy stored in the magnetic field of the…
A: 9) The energy stored in Magnetic field of the inductor is E=12LI2 To increase the stored energy…
Q: Assume a laptop uses 50 watts per hour if the laptop is used for 8 hours a day how many kilowats or…
A: A regular laptop uses about 50 watts of power per hour. When used for 8 hours a day, the total power…
Q: The potential energy of a 40-kg cannon ball is 14000J. How high was the cannon ball to have this…
A: Given data: Mass of the ball (m) = 40 kg Potential energy of the ball (PE) = 14000 J Need to…
Q: A copper wire of radius a = 0.234 mm has an aluminum jacket of outer radius b=0.318 mm. There is a…
A: Given Data : Radius of copper wire,a=0.234mm=0.234×10-3m Radius of aluminum jacket, b = 0.318mm =…
Q: What is the kinetic energy of a 25 kg dog that is running at a speed of 8.7 m/s (about 19 mi/h)?
A: The formula for kinetic energy is given as follows:K=12mv2 K is the kinetic energy , m is the mass…
Q: 7. Pulling the plates of an isolated charged capacitors apart: a. increases the capacitance b.…
A:
Q: A rocket, initially at rest on the ground, accelerates straight upward from rest with constant (net)…
A: In the given problem, the rocket starts accelerating straight upwards, starting from rest, with a…
Q: Three people pull simultaneously on a stubborn donkey. Jack pulls directly ahead of the donkey with…
A:
Q: What is the kinetic energy of a 20 KG dog that is running at a speed of 8.2 m/s (about 18 mi/h)
A: m= 20 kg v= 8.2 m/s kinetic energy= K
Q: 6. Calculate the latent heat of fusion for 2.40 kg of gold as it changes from a molten liquid into a…
A: Given data, Mass of gold M=2.4 kg
Q: 6 A uniform disk of mass M = 750 g, radius r = to rotate about an axis going into the paper at point…
A: Given: The mass of the disk is 750 g. The radius is 28 cm. The force applied is 1.05 N.
Q: Andrea just won a gold medal for weightlifting in olympics. Her weightlifting record was 127 kg.…
A: Weight distribution play important role in weightlifting. 1245 N weight is might be distributed such…
Q: A 59 kg person climbs up the stairs with a height of 5.5m. Where does the energy come from to cause…
A: Energy come from to cause this increase as potential energy Potential energy increase in this case…
Q: Problem 10: Examine the three-dimensional conductor in the figure, that has a cavity in its…
A: The given charge, q=3.6 μC=3.6×10-6 C The charge inside the cavity, q'=27.7 μC=27.7×10-6 C
Q: A piano with a mass of 137 kg is lifted 10 m above the ground in 5 s by a crane. What is the power…
A: mass of piano m = 137 kg height lifted h =10 m time t=5s
Q: What is law of conservation of energy
A: Energy can neither be created nor be destroyed it can only be transformed from one form to another.
Q: If a rock is dropped from a height of 210 ft, its poistiont seconds after it is dropped until it…
A:
Q: What is the kinetic energy of a 27 kg dog that is running at a speed of 7.9 m/s (about 18 mi/h)?
A:
Q: why do we beat a carpet to remove dust particles?
A: The inertia of an object determines the resistance to any change in state of motion of object or…
Q: The electric potential cannot be calculated from the electric field. Select one: O True False
A: Electric potential: around of work needed to move a unit of electric charge from a reference point…
Q: resaw is balanced when the weight of one box times its distance from the balance point is equal to…
A: As per policy i can answer only 1st. Please post the other question separately.
Q: A 60 kg boy on roller skates moves with a speed of 5 m/s. He runs into a 45 kg girl on skates,…
A: Given that,Mass of boy : M = 60 (kg)Mass of girl : m = 45 (kg)Speed of boy before collision : v1 = 5…
Q: How much work does a 5000 Watt clothes dryer do when you run it for 30 minutes? 30 minutes = 1,800…
A:
Q: 20. How many liters of oil would be needed to supply all of the world's energy needs for one year?
A: Solution:- Energy released by 1…
Q: The magnetic field in (Figure 1) is decreasing at the rate 0.60 T/s. Figure What is the magnitude…
A: Given rate of decreasing magnetic field dBdt = 0.6 T/s radius of circle r = 1 cm = 0.01 m
Q: Two points A and B are known to be lying on the same electric field line. Which one of the…
A: Two points A and B are known to be lying on same electric field line
Q: 008 47. . A dropped rubber ball hits the floor with a speed of 8.0 m/s and rebounds to a height of…
A:
Q: What is the kinetic energy of a 30 kg dog that is running at a speed of 8.6 m/s (about 19 mi/h)?
A: The expression for the kinetic energy of the dog is, KE=12mv2 Here, m is the mass of the dog and v…
Q: A book on a shelf has potential energy of 200J and two times the mass of a book next to it. What is…
A: Given data The gravitational potential energy for the book is given as PEh = 200 J. The…
Q: Convert the following to Fahrenheit readings: (a) 120 °C, (b) 12 °C, and (c) –-5 °C.
A: 3.
Q: 14.. 37. ● What is the frequency heard by a person driving at 60 km/h directly toward a factory…
A:
Q: 7.5. Show that in a spatially-flat matter-dominated cosmology the density parameter evolves as…
A: Given that, The density parameter of spatially flat matter dominated cosmology : Ω(z) = Ω₀…
Q: R1 R2 R3 What is the equivalent resistance of the combination of resistors shown above if R1 = 100,…
A: Given, R1 = 10 Ω R2 = 6 ΩR3 = 12 Ω
Q: A cable with a mass of 3kg/meter is used to lift a 200kg load from the bottom of a 150 meter shaft.…
A: Given:- The mass per unit length of the cable is mL=3kg/m The mass of the load is M = 200kg The…
Q: s 1 pound of coal to generate one kWh of electricity. How much coal would an average home use in a…
A: in India average use of electricity per day = 5.7 Kwh / day 1 pound of coal to generate one kWh of…
Q: What is the kinetic energy of a 15 kg dog that is running at a speed of 7.0 m/s (about 16 mi/h)?
A: Given mass m = 15 kg speed v = 7.0 m/s we have to find out kinetic energy
Level #1
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
