The pilot of an airplane travelling 160 kph want to drop supplies to flood victims 160 m below. The supplies should be dropped how many seconds before the plane is directly overhead?

Q: The moving rod in the figure is 13.5 cm long and is pulled at a speed of 16.0 cm/s. Force on…

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Q: Two resistors are placed in parallel with each other and connected across the terminals of a…

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Q: =lags the cu leads the c

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Q: You are given a number of 33 Q resistors, each capable of dissipating only 1.5 W without being…

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Q: A beam of light reflects and refracts at point A on the interface between material 1 with index of…

A: Answer:-  Given  Refractive index (n1) = 1.3  Refractive index (n2) = 1.6  Angle of incidence ( i )…

Q: 3. A total resistance of 3 ohm must be produced by combining an unknown resistor R with a 12 ohm…

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Q: The half-life of F-18 is 110 minutes. The initial activity of a PET dosage is 10 mCi. After one…

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Q: The graph below shows the maximum kinetic energy of emitted photoelectrons as a function of the…

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Q: A 5.00 cm tall light bulb is placed at a distance of 43.7 cm from a concave mirror having a focal…

A: An object of height ho=5 cm is placed at a distance of u=43.7 cm in front of a concave mirror of…

Q: Which conservation law is violated in the strong nuclear reaction π− + p → Σ+ + K−

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Q: What is the electric charge of 2.5x1015 protons?

A: Given data:  Number of protons (n) = 2.5×1015 Required: The electric charge (Q)

Q: diameter wheel, consisting of a rim and six spokes, is constructed from a thin, rigid plastic…

A: GivenDiameter of wheel, d=43 cm=0.43 mNumber of spokes=6Linear mass density, λ=25 g/cmHeight of hill…

Q: 6. A ballistic pendulum is an apparatus that can be used to determine the velocity of a projectile,…

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Q: Find the wavelength of light given off by a hydrogen atom when its electron drops from the n = 4 to…

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Q: A 5.00 [cm] long solenoidal inductor has 50 turns and radius of 3.00 [cm]. If the current varies at…

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Q: If a wheel turns 3,500 revolutions (angular displacement), calculate its angular displacement in:…

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Q: A force of 200 N is applied to an object of area 4 m² Calculate the pressure ?

A: Pressure = (Force)/(Area)

Q: If the acceleration of an object is zero, are no forces acting on it? Explain your answer

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Q: A circular coil of 20 turns and radius 10 cm is placed n a uniform magnetic field of 0.10 T normal…

A: Torque is the rotational equivalent of linear force. Here, we calculate  the given as follow;

Q: What is a magnetic field? What is its source?

A: Introduction :- Here we need to define the magnetic field and the source of it.

Q: An electron travels at 1.2 x 10^5 m/s and then enters a region perpendicular to a 2.2 T magnetic…

A: Given, the electron's velocity, v=1.2*105 m/s Magnetic field, B= 2.2 T

Q: In the circuits shown below, all the capacitors, resistors and batteries are identical. In which…

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Q: A 12.0 kg block of metal measuring 12.0 cm by 10.0 cm by 10.0 cm is suspended from a scale and…

A: Given : Mass of block = 12 kg Length of block = 12 cm = 0.12 m Breadth of block = 10 cm = .1 m Width…

Q: If an object is moving,is it possible for the net force actingon it to be zero?

A: Solution:-

Q: 10. Which of the following is NOT true about induced electric field? A. It is caused by the changing…

A: Its force is not conservative since it depends on path.

Q: A tube with a cap on one end, but open at the other end, has a fundamental frequency of 131.2 Hz.…

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Q: In 1996, NASA performed an experiment called the Tethered Satellite experiment. In this experiment,…

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Q: A force of 200 N is applied to an object of area 4 m² Calculate the pressure?

A: Given data :                 Force     =    F                 Area       =    A        To find :…

Q: How many of the following statements are FALSE?…

A: How many of the following statements are FALSE

Q: If acceleration due to gravity is 12 m/s², what will be the potential energy of a body of mass 2 kg…

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Q: Two pieces of steel wire have lengths of L and 4L. The longer wire has a larger cross section which…

A: GIVEN Two pieces of steel wire have lengths of L and 4L. The longer wire has a larger cross section…

Q: d) The equation below describes the disintegration of a bismuth nucleus into a thallium nucleus and…

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Q: Mass M1= 20kg and is initially moving to the right at a velocity of V1= 15 m/s. Mass M2 = 5kg and is…

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Q: A force of 15N is being applied to an object at a distance of 33 cm from the axis of rotation. The…

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Q: A horizontal power line carries a current of 3920 A from south to north. Earth's magnetic field…

A: Force on a current carrying conductor in an external magnetic field  F = i(l × B)  i = current l =…

Q: In the figure the current in resistance 6 is i6 = 1.37 A and the resistances are R₁ = R₂ = R3 =…

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Q: brine solution with density of 1230 kg/m³ moves through a constricted pipe in steady, ideal flow. At…

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Q: Determine the half-life (in s) of a radioactive sample that has a decay rate of 5.60 x 10¹¹ Bq when…

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Q: An object on a spring: An object is attached at the end of a spring with no friction. The amplitude…

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Q: How do objects get electrically CHARGED? Due to electrons being rubbed off of one thing onto another…

A: Three ways charge can be transferred between objects are Friction Conduction Induction

Q: A digital clock has a 1.2x10 4 2 resistor and is connected to a 115 V source. How much power does…

A: Given  Resistance (R) = 1.2 × 104 Ω Source voltage ( V0 ) = 115 V  Power is given by :- Power (P) =…

Q: diatomic ideal gas at pressure p and volume V is expanding to three times its initial volume under…

A: diatomic ideal gas at pressure p and volume V is expanding to three times its initial volume under…

Q: The figure below shows a circuit with a battery of EMF = 3.639 V, a resistor with R = 3.4622, and an…

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Q: spring stretches by 0.0204 m when a

A: Given that , Stretching of spring , x= 0.0204 m  Mass of object ,m = 3.33 kg  Frequency of vibration…

Q: July 15,2004,NaDa lunch the aura spacecraft(mass is 2970kg) to study the earth climate and…

A: spacecraft(mass is 2970kg) to study the earth climate and atmospheric,the satellite was injected…

Q: At the scene of a car accident, the forensic investigator measured the skid marks from one of the…

A: …

Q: Calculate the average heights and standard deviation for each object and enter in table 2. By using…

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Q: A basketball player made a shot,the ball was released from the player hand at t=0 sec with initial…

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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 –