If the top of a tower is 4569.5 meters away from an observation balloon and the angle of depression is 16.50°, what is the horizontal distance to the tower?

Q: 8 Look at the diagram of the circuit. a Draw an arrow to show the direction in which the electrons…

A:

Q: An object of mass 18 kg is at a certain height above the ground. If the potential energy of the the…

A: Mass, m = 18 kg Potential energy, U = 210 J Acceleration due to gravity, g = 10 m/s² Height, h = ?

Q: A perfect conducting sphere of radius r is such that its net charge resides on the surface. At any…

A: Magnetic field inside the sphere:

Q: Find pressure Force 2.6 N Area 2 mm2

A: We know that Pressure = Force / Area . With given data we need proceed accordingly

Q: The current passing through a 0.40-H coil increases from 2.0-A ti 10.0-A in 0.12 s. (a) Calculate…

A:

Q: Find impulse Force=10.10 N Time=0.8 s

A: Given data : Time=t Force=F   Required : Impulse

Q: Why is it that Voltmeter is connected in parallel to a circuit to measure the voltage of the…

A: Required reason for connecting voltmeter in parallel to a circuit. Why heat is zero in thermal…

Q: acceleration due to gravity has the value of g that is affected by the bob's mass. True or false

A: When a body is in free fall motion, then it comes towards surface of earth under the influence of…

Q: A wall, acted upon by a force of 20 N, does not move. The work done in this process is (A) 20 J (B)…

A: Work done, W = F.d

Q: Find the value of momentum Mass=2.15 kg Velocity=0.62 m/s

A: Write the given values with the suitable variables. m=2.15 kgv=0.62 m/s Here, m is the mass and v is…

Q: he force of air resistance increases as   Question 3 options:   velocity   area squared   inverse…

A: Due to pressure and drag force air resistance increases.

Q: Q2/As a car accelerates uniformly it passes successive kilometer marks while traveling at velocities…

A: Write the given values with the suitable variables. u=4 m/sv=12 m/sd=1 km=1000 m Here, u is the…

Q: 4. Monochromatic light = 650nm passes through two slits and onto a screen 3m away. If two nearby…

A:

Q: It takes 3.8 x 10-5 s for a pulse of radio waves from a radar to reach a plane and bounce back. How…

A:

Q: A spaceship has been gone from the Earth for a total time of 5 years ship time.The people on the…

A: The time dilation formula is given by                    t = to1-vc2 where to = proper time interval…

Q: 3. Inside a solenoid the magnetic field A. is zero B. is uniform C. increases with distance from the…

A:

Q: A wall, acted upon by a force of 20 N, does not move. The work done in this process ********** (A)…

A:

Q: Find the value of distance covered by car Speed of car=23.5 m/s Time-3 s

A: Given data:  Speed (v) = 23.5 m/s Time (t) = 3 s Required: Distance (d)

Q: Determine kinetic stored in body Mass=24 kg Velocity=3.5 m/s

A: Given data : Mass=m Velocity=V   To find: Kinetic energy

Q: What is the magnitude force on a proton moving at 2.5 x 105 m/s in a magnetic field 0.5T If the…

A:

Q: 2. Three point charges are located at the corners of an equilateral triangle side a 4 cm in Fig.2.…

A:

Q: 2. Consider that a p-type Si and an n-type Si are in contact as shown in figure below at t=0.…

A: A PN Junction Diode is one of the elegant semiconductor devices around, and which has the electrical…

Q: How long will it take for an amount of Radon-223 to decay to only 60% of the original amount? The…

A:

Q: Determine the speed of car Distance-21.57 m Time=2 s

A: Given data : Distance=d Time=t   Required : Speed

Q: Example 7.10. A short solenoid (length / and radius a, with ₁ turns per unit length) lies on the…

A: In the question, it's given that Length of short solenoid = l The radius of short solenoid = a…

Q: Find the value of pressure Force=0.67 N Area=1 mm2

A: Given: The applied force is 0.67 N. The area is 1 mm2.

Q: FIND IMPULSE VALUE Force=12.1 N Time=2.3 s

A: Given data:  Force (F) = 12.1 N Time (t) = 2.3 s Required: Impulse (I)

Q: Calculate the work done Force=1.12 N Displacement=0.5 m

A: Given data : Force=F Displacement=d   Required : Work done

Q: Output of a truck is 4500 J and its efficiency is 50%, input energy provided to truck is A. 5000 J…

A:

Q: A wall, acted upon by a force of 20 N, does not move. The work done in this process is (A) 20 J (B)…

A: Since the wall is not moving anywhere displacement is zero.

Q: 1. What is yif v = 0.650c?

A: Unknown: Find the Lorentz factor of particle.

Q: 5] An object is located at a distance s = 14 m] in front of a mirror having a focal length of f = 2…

A: Given, An object is located at a distance s = 14cm in front of mirror having a focal length of f =…

Q: Why is it that the work done in holding a bag w above the floor is 0?

A: GivenF=1 N1 m above the floor

Q: An infinitesimally thin, uniformly charged wire with longitudinal charge density A is given the…

A: Total charge on the wire = Q =λ×(L+2L+L+2L) =6λL Electric field due to circular ring of radius R and…

Q: S] An object is located at a distance s = 14 [cm] in front of a mirror having a focal length of f =…

A:

Q: If you accidentally grabbed the prongs of a partially plugged-in 120-V electrical plug on a day when…

A: Given data:  Voltage (V) = 120 V Resistance (R) = 130,000 Ω Required: The current (I)

Q: What exactly is digital audio, though? The process through which analog sound waves are converted…

A: This question is based on the conversion of analogue (Natural) signals into digital(1s and 2s). The…

Q: Q-A missile runs freely without of fuel in the location as shown in figure.2, calculate:- 1-…

A:

Q: A guard on top of a castle shoots an arrow directly downwards. The arrow has a speed of 9m/s when it…

A: (a) Arrow falls under the gravity. So it's acceleration will be equal to acceleration due to…

Q: Calculate the work done Force=1.12 N Displacement=0.5 m

A: Given data :- Force F = 1.12 N Displacement d = 0.5 m

Q: Find pressure Force=2.6 N Area 2 mm2

A: Given data : Force=F Area=A   Required : Pressure

Q: A rickshaw puller pulls the rickshaw by applying a force of 240 N. If the rickaw moves with constant…

A: Given data :                        Force    =    F                       Velocity   =    V…

Q: b) What total horizontal distance does the ball travel? c) What is the angle (below the horizontal)…

A:

Q: Your favorite radio program broadcasts 96.3 MHz. What is the wavelength corresponding to this…

A:

Q: Determine the speed of car Distance=21.57 m Time=2 s

A: Given data:  Distance (d) = 21.57 m Time (t) = 2 s Required: Speed (v)

Q: The change in yours's potential energy if you jumped 60cm vertically if your mass is 70 kg is o…

A: Given data:  Height (h) = 60 cm = 0.60 m Mass (m) = 70 kg Acceleration due to gravity (g) = 9.8 m/s2…

Q: Two capacitors with capacitances C1 and C2 are connected in series Show that, no matter what the…

A:

Q: An 8.5-kg block is pushed along a horizontal rough surface by a 40-N force inclined at 20° with the…

A: According to Newton's second law Net force = mass× accelerationFriction force=μNwhere, N is a normal…

Q: An object is placed 30 cm from a convex mirror with a focal length of 10 cm. Where is the image…

A:

Q: dentify whether the statement is TRUE or FALSE 1. RPM is the speed of the centrifuge that causes…

A: Statement 1 is true. RPM (Rotation per minute) is the speed of centrifuge that causes particles to…

Units and Dimensions

These are generally defined as the terms which precede or describes the dimensions further. These are also further divided into two parts namely fundamental units and the derived units.