A traffic patrol helicopter is stationary a quarter of a mile directly above a highway. Its radar detects a car whose line-of-sight distance from the helicopter is half a mile and is increasing at the rate of 57 mph. Is the car exceeding the highway’s speed limit of 60 mph? Justify your answer completely.

Q: Which of the following scenarios show an increase in the electric potential energy? A negative charg...

A: Direction of electric field is from positive to negative. Or  In other words, electric field moves f...

Q: A bag of wheat weight 250 7o what heigt 'should it te /aiged so that Poterdial energi SO 96 00 J 7ok...

A: mass of bag of wheat (m) = 250 kg potential energy (U) = 9600 J g = 9.8 ms2  

Q: A 1.825-kg falcon catches a 0.570-kg dove from behind in midair. What is their velocity after impact...

A: GivenMass of Falcon ,m1=1.825 kg , Mass of dove ,m2=0.570 kgInitial velocity of Falcon ,u1=28.5 m/si...

Q: Two point charges are on the y axis. A 5uC charge is located at y = 1.5cm and a -2.5uC charge is loc...

A:

Q: 7. What does "negative work" mean? O A. The applied force varies with position. O B.The applied forc...

A: Given Work is negative We have to choose the correct option from the given options

Q: Express your answer in newtons. Two forces, F, and F2, act at a point. The magnitude of F, is 8.50 N...

A:

Q: A certain spring has 14.0 J of elastic potential energy stored when compressed 0.26 m. The spring is...

A: Given: The spring has an elastic potential energy of E = 14.0 J, when compressed x = 0.26 m. The sp...

Q: Two point charges are on the y axis. A 5uC charge is located at y = 1.5cm and a -2.5uC charge is loc...

A:

Q: When an astronaut experiences weightlessness in deep outer space,  is she at equilibrium?  She may ...

A: When an astronaut experiences weightlessness in deep outer space,  is she at equilibrium?  She may b...

Q: Two capacitors of 2.0 and 4.0 mF are connected in parallel. This group is connected in series with a...

A:

Q: The work done by the electric field as the charge, +2.0x10-6 C, moves from A to B is +5.0x10-5 J. De...

A:

Q: A bullet was fired at a velocity of 2458m/s and must be angled to reach the target located at the ra...

A: Given: velocity u =2458m/sFind: Angle of projection for maximum range                               ...

Q: In a simple electric circuit, a 24-ohm resistor is connected across a 6.0-volt battery. What is the ...

A: Resistance (R) = 24 ohm  Potential difference provided by the battery (V) = 6 volts

Q: Three capacitors are connected in parallel and have the following voltage ratings: C1 = 32 uF with 8...

A: Given data: Capacitance, C1=32 μFC2=65 μFC3=105 μF Voltages, V1=80 VV2=220 VV3=120 V

Q: A spherical conductor has a radius of 8 mm and a charge of 20pC. Calculate the electric potential at...

A:

Q: If you know the wavefunction, how do you calculate the average position

A:

Q: It is a non-conducting material between the conducting plates of a capacitor.. O dielectric insulato...

A: A simple capacitor is made up of two conducting plates brought very close to each other. The two pla...

Q: What is the acceleration of an object thrown upward with initial velocity of 8.03 m/s?

A: Given in question: An object is thrown upward with an initial velocity of 8.03 m/s To find:  The acc...

Q: 2/67 In a basketball game, the point guard A intends to throw a pass to the shooting guard B, who is...

A:

Q: Which equation would give the x-component of Vector A with a magnitude of 76.50 m, 75° South of east...

A: x component of a vector = A cosθ 

Q: Hank speedometer reads 60 miles per hour , but during a road test he finds that he was actually driv...

A:

Q: A wire of length 0.863 m carries a current of 25.6 A. In the presence of a 0.693-T magnetic field, t...

A: Write the expression for the magnetic force. Here, B is the magnetic field, I is the current, L is ...

Q: An airplane accelerates down a runway at 4.12 m/s? for one minute until it finally lifts off the gro...

A: Given in question: Acceleration of airplane(a) = 4.12 m/s2                                 Time(t) =...

Q: Erik and Manuel drive at a compass heading of 270 west of south for 18 km to Trece Martires, then di...

A: Resultant of two or more than two vector can be determined by resolving the vectors into its compone...

Q: It is the amount of charge that must be stored in the conductors to produce a certain potential diff...

A: (A) is correct.

Q: A magician pulls a tablecloth from under a 200 g mug located 15.0 cm from the edge of the cloth. The...

A:

Q: A hot-air balloonist, rising vertically with a constant velocity of magnitude 5 m/s, releases a sand...

A:

Q: 1. What happens to the work if the same person goes up the stairs slower? 2. What happens to the pow...

A: 1. Work done by the same person is independent of the fact that he climbs up the flight of stairs fa...

Q: A 5.80 µF , parallel-plate, air capacitor has a plate separation of 5.00 mm and is charged to a pote...

A:

Q: A Van de Graaff generator is charged so that the magnitude of the electric field at its surface is 3...

A: Given in question: Electric field(E) = 3.0×104 N/c  To find:  (a) the electric force exerted on a pr...

Q: Two capacitors in series, C;= 9.0 uF and C2= 5.0 uF, are connected to a 12.0 v battery. What is the ...

A:

Q: Two capacitors in series, C1= 9.0 uF and C2= 5.0 uF, are connected to a 12.0 V battery. What is the ...

A:

Q: A spherical conductor has a radius of 8 mm and a charge of 20μC. Calculate the electric potential at...

A:

Q: Two point charges are on the y axis. A 5uC charge is located at y = 1.5cm and a -2.5uC charge is loc...

A:

Q: How much charge does a battery have to supply to a 5uF capacitor to create a potential difference of...

A: Charge Q = Capacitance(C) × potential (V)  Given C= 5uF Potential V = 2v  

Q: What is the difference between (i) the pressure exerted by water vapour when the air holds the maxim...

A: The pressure exerted by water vapor when the air holds the maximum amount of vapor is called equilib...

Q: What is the final velocity of a train that comes at a full stop? O 37 m/s O 9.8 m/s2 O -1.38 m/s2 O ...

A:

Q: Which of the following scenarios have zero work done on a charge moving in an electric field? O The ...

A: Given, Charge moving in a electric field , We want to know in which situation work done  by electric...

Q: Problem 5: A uniform flat disk of radius R and mass 2M is pivoted at point P. A point mass of 1/2 Mi...

A:

Q: An antelope moving with constant acceleration covers the distance between two points 70 m apart in 6...

A: distance (d) = 70 m time (t) = 6 seconds initial velocity = u final velocity (v) = 15 ms  

Q: A 2.0 kg mass at the end of a string is moving in a circular path of radius 0.75 m on a horizontal f...

A: Apply the conservation of the angular momentum equation. Here, vi is the initial velocity, ri is th...

Q: When two charges are brought close together, the electric potential energy of the pair of charges is...

A: The potential energy of the pair of charges q1 and q2 with a distance r between them is given as: U=...

Q: A spherical conductor has a radius of 8 mm and a charge of 20µC. Calculate the electric potential at...

A:

Q: Two capacitors in series, C1= 9.0 uF and C2= 5.0 uF, are connected to a 12.0 V battery. What is the ...

A:

Q: Question: A circuit contains a single 12 V battery and 4 resistors. Ri = 20, R2 = 50, R, = 7 0, R. =...

A:

Q: What equation will solve the given problem below? A 3.0x105 kg car is 4.5x10 2 m away from a truck a...

A: Given in question: Mass of car(m1) = 3.0×105 kg                                  Force(F) = 65N     ...

Q: Determine the work done, in µJ, in moving a 7-nC charge from A(-3, 2, 2) m to B(-1, 2, 2) m against ...

A:

Q: Write Schrodinger’s equation for an object in the potential V(x)= (Ax^3+Bx)

A: One dimensional Schrodinger’s equation for an object of mass m in potential V(x) is given as iℏ∂ψ(x,...

Q: Two point charges of 3 nC and -4 nC are placed, respectively, at (0, 0, 1 m) and (0,0,2 m) while an ...

A: We know that the force between the two charges is given as  F = kq1q2r2 k is Colomb's constant r is ...

Q: Two capacitors in series, C;= 9.0 uF and C2= 5.0 uF, are connected to a 12.0 V battery. What is the ...

A:

Distance and Speed

The speed, distance and time relation forms the basis of study of motion. You will need these concepts in the study of Mechanics. This concept is applicable for students who are studying the following courses –