If you put your finger right above a flame you will not get burn't. The reason for this is that the hear from the candle travels sideways keeping close to the ground. (True or False) B- Desert sand is very hot in the day and very cool at night. This means sand has low specific heat.(True or False)

Q: A spherical helium balloon has a radius of 3.6 m and a mass of 11 kg, not including the helium…

A:

Q: : The force F = (6.71 N) î + (4.62 N) ĵ acts on a particle as it moves along a straight line from…

A:

Q: How does a coffee thermos control convection so as to keep coffee hotter longer? A Conduction is…

A: How does a coffee thermos control conduction so as to keep coffee hotter longer? (A) Conduction is…

Q: Several experiments are carried out during which a ball, which first rolls on a table, reaches the…

A: Height of the ball above the ground, The angle of inclination of table with the horizontal, Velocity…

Q: What is the total translational kinetic energy of the gas molecules of air at atmospheric pressure…

A:

Q: In the figure provided, which of the following has the most elastic potential energy? All are of…

A: Spring potential energy is stored in a compressed or stretched spring. It's calculated using,U =…

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: 45 J of work are done on the gas in the process shown in (Figure 1). What is V₁ in cm³? Express your…

A: Work done on the gas is A PV-diagram is given.Note:Find:The value of volume

Q: Beta decay is nuclear decay in which an electron is emitted from an atom. If the electron is given…

A:

Q: A meter stick balances on a knife edge be- low the 50 cm mark. When two nickels are stacked and…

A: Masss of nickel, m=5.0 gPosition of nickels, x=12.0 cmCenter of mass of the system after nickels are…

Q: In the figure, two long straight wires (shown in cross section) carry currents i₁ = 28.1 mA and i₂ =…

A:

Q: In this problem we are going to analyze the ballistic pendulum. The process is as follows: a bullet…

A: We know that the momentum is conserved when there is no net external force acts on the system.  From…

Q: D ▷ D ********** A fluid with specific weight 321b/ft³ flows through the pipe below as it narrows…

A: The objective of this question is to find the difference in heights in the barometer attached to the…

Q: A fast-pitch softball player pitches the ball horizontally at 22.4. Her release point was 0.67 m…

A: The velocity of the ball in the horizontal direction is given as ux = 22.4 m/s.The height from where…

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

A:

Q: If the distance of the object is 250 cm and the distance of the image is 140 cm, I say that the…

A: The objective of the question is to verify whether the given focal length is correct or not based on…

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

A:

Q: Three blocks A, B and C are connected by two ropes with weigh 25 N each and the coefficient of…

A:

Q: In an interference experiment, red light with a wavelength of 6.0 x 10 –7 m passes through a double…

A: Given Data:Wavelength Distance of screen Distance between screens Wavelength of blue color  To…

Q: (2) Try to draw the following processes of ideal gas passing through point 1 on the given parameter…

A: Constant Pressure : The Y-coordinate is pressure, keeping the pressure constant draw the line.…

Q: 2. A 1.2 kg cart moving at 6.0 m/s [E] collides with a stationary 1.8 kg cart. The head-on collision…

A: See below

Q: The temperature inside the International Space Station (ISS) is kept at around 70F. Outside the…

A: Temperature inside the ISS is Temperature outside the ISS ranges from  to Find:The given temperature…

Q: On one side of a diverging lens of focal length 27.3 cm, you position an object of height 3.24 cm…

A: The magnification of the lens is given by The thin lens formula is given by

Q: water has a bulk modulus of 2.2 x 109 n/m2. Suppose water at an atmospheric pressure has a density…

A: The bulk modulus of water is The density of the water at atmospheric pressure is The depth of the…

Q: Two muscles in the back of the leg pull upward on the Achilles tendon, as shown in the figure below.…

A:

Q: Radioactive decay is always a first-order kinetic process. Uranium-238 decays to lead-206, which is…

A: Amount of uranium -238 is 0.00150 g = =  mol Amount of lead -206 is  g =   = molNow no radioactive…

Q: Given: Nc = (2.51x1019)(mn/mo)3/2 (T/300)3/2   Nv = (2.51x1019)(mp/mo)3/2 (T/300)3/2 and  ni =…

A: .......... (1).......... (2)............ (3)

Q: (2) An object initially at rest breaks into two pieces because of an explosion. One pieces has twice…

A: Initial speed of object = v = 0 m/sMass of object = mFinal speed of first piece = v1Mass of first…

Q: Suppose a cosmic ray colliding with a nucleus in the Earth's upper atmosphere produces a muon that…

A:

Q: A wire with a length of 100 cm is tied between two supports. The tension in the wire is 50N. The…

A:

Q: - The figure below is a cross-sectional view of a coaxial cable. The center conductor is surrounded…

A: Current in inner conductor I1=1.02 A out of the page Current in outer conductor I2=2.86A into the…

Q: An engineer wants to design a structure in which the difference in length between a steel beam and…

A: The difference in length between the two beams is due to the difference in their thermal expansion.…

Q: A golf ball weighting 0.05 kg is hit at 1000m / s * 2 at an angle of 45 degrees What is the force in…

A: Mass of object is Acceleration is Angle is Note:Find:Horizontal and vertical component of force.

Q: Physics 280 - Optics: Homework #3 Two long filament bulbs, like those we used in class, are used to…

A: When two long filament bulbs are arranged in a T shape and held in front of a mask with a triangle…

Q: The wheels, axle, and handles of a wheelbarrow weigh W = 57 N. The load chamber and its contents…

A: wheels, axle, and handles of a wheelbarrow weigh, W= 60.0 N.  load chamber and its contents weigh,…

Q: 14. Find the impedance magnitude and phase angle: 226 юкл mu AS E ст 50lvo что ре f = 100Hz INI ег…

A:

Q: A concave spherical mirror has a radius of curvature of magnitude 20.2 cm. (a) Find the location of…

A:

Q: A 1.2 kg cart moving at 6.0 m/s [E] collides with a stationary 1.8 kg cart. The head-on collision is…

A: Since the student has requested for part B only, hence its solution is as follows :

Q: A mass weighing 32 pounds stretches a spring 2 feet. Determine the amplitude and period of motion if…

A:

Q: A convex spherical mirror has a radius of curvature of magnitude 38.0 cm. (a) Determine the position…

A:

Q: Q-1 A point light source has an intensity of 2000 candela in all directions and is mounted 4 meters…

A:

Q: The motion of a cart attached to a horizontal spring is described as x= (0.17 m)sin[(pi* s-1 )t].…

A: The objective of the question is to find the velocity of the cart as a function of time. The…

Q: 55 J of heat energy are transferred out of an ideal gas and 40 J of work is done on the gas. What is…

A:

Q: is lifting a 30%-kg crate upward with an acceleration of solid cylindrical pulley at the top of the…

A: The 309 kg crate is lifting upward with the acceleration of . So, the tension in the cable can be…

Q: The sketch below shows three rods of iron where B and C which have been cold worked from A) by 10%…

A: Yield StrengthYield strength is the amount of stress at which a material begins to deform…

Q: The seconds hand of an old-fashioned clock makes one revolution around the dial per minute . What is…

A:

Q: A certain radioactive isotope has a half-life of 55 days. About how long would you have to wait…

A:

Q: Question 5: A mass of 0.50kg is attached to a spring of constant 30N /m. The mass is pulled 10cm…

A:

Q: A transverse traveling wave on a string is given by: y(x,t) = (2 cm). sin((100 s-1)t - (12 m-1)x)…

A: Wave equation:y(x,t) = (2 cm). sin((100 s-1)t - (12 m-1)x)Compare with standard equation of wave, ω…

Q: Find the force law of a particle in the central force field that allows the particle to move in an…

A:

Stretched string

A stretched string is a wire which is made up of any metal that must have a larger length compared to its thickness. The ends of the wire are fixed, and when they oscillate or are plucked, it produces two reflected transverse waves of the same frequency and same amplitude. The waves or pulses are traveling in alternate directions and superimpose with one another. This waveform is named standing or stationary waves.