32. A kite 100 ft above the ground moves horizontally at a speed of 8 ft/s. At what rate is the angle between the string and the horizontal decreasing when 200 ft of string has been let out?

Q: Calculate the Fermi Energy of a metal (in eV) with an atomic weight of 88.1 g/mol, density of 5.1…

A:

Q: uppose a snack bar is burned in a calorimeter and heats 2,000 g water by 20 °C. How many…

A: given data as per question  mass = 2000g temperature  = 20

Q: Ida Haitarun is captain of the Varsity cross country team. During the after-school practice on…

A:

Q: Doing some physics homework and am kind of stumped here!

A:

Q: Use conservation of energy to determine the maximum height that a little girl with mass, m g=30 kg,…

A: Write the given values with the suitable variables. mg=30 kgh=0.25 mvmax=0.75 m/s Here, mg, h, and…

Q: A 6 kg toolbox sits at rest on a roof sloped at 31 degrees. Which of the following is the magnitude…

A:

Q: pa = (p + dp)(a + dv)A÷pa dp dv + = 0......... (1) a 810 (Derive)

A:

Q: An air bubble frozen in ice is extracted from many meters below the surface in the arctic. The…

A: Activity (A) = 0.8 % of the original activity

Q: 1 The number of turns in the coil of an ac generator is 5000 and the area of the coil is 0.25 m².…

A: Peak value of emf =157.1 kV

Q: A transformer has a primary coil with 175 turns of wire and a secondary coil with 875 turns. An AC…

A:

Q: steel ball dropped from a tower strikes the ground in 3s. What is the velocity when the ball strikes…

A:

Q: Ima Stomaksic is walking from lunch to her PE class. She exits the lunchroom and walks 43m west. She…

A: first leg of displacement = 43 m , west second leg of displacement = 72 m , north

Q: In the figure four particles are fixed along an x axis, separated by distances d = 4.00 cm. The…

A: a)1.42×10-25 N (on Right side) b)1.08×10-25 N (on Right side)

Q: 98. The work function of a metal is 1 eV. Light of waveleng 3000 Å is incident on this metal…

A: Given value--- work function = 1 eV. incident wavelength = 3000 A. We have to find---  The…

Q: Unit 4: Projectile Motion (Pt 3) p X x Positive Physics - Unit 4: Projectil x +…

A:

Q: Assume that I = 12 A. (Figure 1) You may want to review (Pages 803 - 806). Figure I а. b. С. [2.0 cm…

A: Given value--- I = 12 Amp. We have to find--- magnetic field at point a ?

Q: positivephysics A student fires a cannonball diagonally upwards with an initial speed v at an angle…

A:

Q: Vector F₁ = 25 N, 40° N of E F2= 30 N, 35° E of N F3 = 20 N, W X-Component ΣFx = Y-Component ΣFy=…

A:

Q: ou are observing a concert. You move closer to the stage so that the intensity of the sound is 100…

A: The decibel level of sound intensity is given by the equation dB=10logI×1012I is the sound intensity…

Q: A string is tight between an oscillator at one end and a pole at the other. The other end at the…

A: Given: The mass of the string is 4.9 g. The length of the string is 0.7 m. The tension in the string…

Q: During a discussion session inside the classroom on how spacecraft move in space, Jassica said: "The…

A: We know   Rockets move through space by ejecting gases and this is based on Newtons third law: For…

Q: In the figure the current in resistance 6 is i6 = 1.36 A and the resistances are R₁ = R₂ = R3 = 1.53…

A:

Q: A sniper atop a building 150m high fired a bullet parallel to the horizontal with a speed of…

A: Time=5.53 s

Q: A student with a mass of 46 kg stands on a bathroom scale in an elevator. What can you say about the…

A:

Q: A 5.0 kg crate is moving in a rough horizontal surface. What will happen to its acceleration if the…

A: Force acting on an object is the cause effect to which is the acceleration of object in response to…

Q: 5 DETAILS SERPSE10 10.A.OP.036.BIO. a Ⓡ During a concentric loading of the quadriceps muscle in the…

A:

Q: In an INELASTIC collision between two objects OOO the kinetic energy of the system is conserved, but…

A: Inelastic collision: Such a collision between two objects, in which some energy is wasted, is known…

Q: A flexible shaft consists of a 0.20-in-diameter steel wire encased in a stationary tube that fits…

A:

Q: 1. Write the differential equation for the charge on the capacitor. q' q=30 cos (20-t) 2. Write a…

A:

Q: A pendulum at rest is hit to put it in motion. The distance the pendulum is from its resting…

A: Given: Position of the pendulum f(t) =3et4sin(4t) To Find: distance from resting position after 3…

Q: A simple pendulum consists of a small object of mass 3.0 kg hanging at the end of a 2.0-m-long light…

A:

Q: A 1500 kg satellite is in orbit around the Moon at a distance of 3 Moon radii above the surface of…

A: Mass of the moon, m1=7.35×1022 kg Mass of the satellite, m2=1500 kg The radius of the Moon,…

Q: 4.35 Two adults and a child want to push a wheeled cart in the di- rection marked x in Fig. P4.35…

A:

Q: Bodies A and B are joined by a cord parallel to the inclined plane as shown. Under body A which…

A:

Q: How much force was required to bring granny's 1200-kg car to rest from 90 mph (40 m/s) in 2 seconds?

A: Given Data: Mass of car m=1200 kg Velocity of car v=90 mph=40 ms Time t=2 sec

Q: " radio can tune over the frequency range of a portion of MW broadcast band (800 kHz to 1200 kHz).…

A: Capacitance is the ability of a component or circuit to collect and store energy in the form of an…

Q: A 28 kg object is located 2 meters above the ground. Calculate the objec gravitational potential…

A: Given value--- mass = 28 kg. height = 2 m. We have to find--- gravitational potential energy?

Q: A 10.0 Ω 5.00 Ω ww R V R www eal ammeter eal voltmeter AV + + 4.50 V eal ammeter (Give your answer…

A:

Q: Neglecting air resistance, what is the speed of an object (in m/s) 1.7 seconds after being dropped…

A: Our question is to find the speed of an object which is falling freely from a height after 1.7 s

Q: A particle has a mass of 1.6E-27kg and a momentum of 2.2E-18 kg.m/s. What is the speed of the…

A: Given:      Mass of particle(m) = 1.6×10-27 kg     Momentum of particle(p) = 2.2×10-18 kg.m/s

Q: What would be the gravitational pull of the moon on an astronaut with a total mass of 125kg with a…

A: Given data:  Mass of astronaut (m) = 125 kg Diameter of the moon (d) = 3474 km Mass of the moon (M)…

Q: 4. A daring swimmer drives off a cliff with a running horizontal leap, as shown in the figure. What…

A:

Q: Suppose you are playing hockey on a new-age ice surface for which there is no friction between the…

A: Here we can consider the ice and hockey puck as a system.

Q: A blacksmith immersed a piece of steel at 600 Fahrenheit into a large bucket of water with a…

A: Given Initial temperature of piece of steel T0=600 Fahrenheit temperature of water =65 Fahrenheit…

Q: When our cars collide, they usually don't fuse together, so does that mean that their collision is…

A: An encounter or interaction between particles or objects that results in an exchange of energy…

Q: Problem#3: #3A. The rigid bar AB, attached to two vertical rods as shown, is horizontal before the…

A:

Q: Why does your I go from from 4.54 x 10^-4 to 4.66 x 10^-4 in the final equation?

A:

Q: A spacecraft has a length of 100 m when parked on Earth. It is now moving toward a tunnel with a…

A:

Q: What is the answer for part D and E?

A:

Q: A 13.00 kg particle starts from the origin at time zero. Its velocity as a function of time is given…

A:

Projectile Motion