You are in an elevator standing on a scale. The scale reads the normal force that it needs to exert on you (upwards) so you stay on top of it. What would the FBD of you look like if the elevator was at rest?

Q: Show the relationship between current and resistance in a circuit by describing how one affects the…

A: Required: The relationship between the current and resistance in a circuit

Q: Select Distance again from the Conversion Use the conversion factors on the tiles to calculate how…

A: in this question  we use conversion factors  equation to determine answer.

Q: 19) The equipotential surfaces for two point charges are shown in the figure, with the value of…

A:

Q: 15) A proton that is initially at rest is accelerated through an electric potential difference of…

A: Given data-                    electric potential difference that is accelerating the proton is ( V…

Q: 2) A negatively-charged plastic rod is brought close to (but does not touch) a neutral metal sphere…

A: There are two methods for charging a conductor, they are (1) Charging by conduction In this method…

Q: 63. Two loudspeakers located along the x-axis as shown in Figure P16.63 produce sounds of equal…

A: If we assume that the cones of the speakers move in phase with each other, we can say that the sound…

Q: An automobile is travelling at 60km/h. calculate the angular velocity of the 0.35m radius wheels

A: Given data:  Speed (v) = 60 km/h Radius (r) = 0.35 m Required: Angular velocity (ω)

Q: About 29% of the body of a person floating in the Dead Sea will be above the water line. Assuming…

A:

Q: If the ballistic pendulum (with ball inside) rises to a height, h = 9.74 cm, what was the velocity,…

A: in this question we use conservation of energy. ( here mass of ball and pendulum is missing but i…

Q: A wooden block experiences a frictional force, f, as it slides across a table. If a block of the…

A: We have a wooden box of dimensions say (x,y,z) where x is the width, y is the length and z is the…

Q: Two objects, a sphere and a block of the same mass, are released from rest at the top of an inclined…

A: The correct answer is option D The block, because it does not gain rotational kinetic energy, but…

Q: Name: Date: Grade and Section: Direction: To illustrate this, use Newton's universal gravitation…

A: Given:-  Mass of object 1 (kg) Mass of object 2 (kg) Separation distance (m) Find:-  The force of…

Q: Can you name the three different processes that are used to make magnets?

A: A magnet is a material or object that produces a magnetic field. It is a substance that attracts…

Q: Figure P-313 represents the concurrent force system acting at a joint of a bridge truss. Determine…

A: In equilibrium conditions, the sum of the net forces acting on a body is zero. Forces are vector…

Q: 12 F and F are the foci of the above lens and AB is an incident ray. Which light ray best represents…

A: We have given AB is incident ray . Lens has two foci F and F'  Find : Which ray represents emergent…

Q: A ball is dropped from a bridge and strikes the water in 2.4 seconds. How fast is it moving when it…

A:

Q: While doing the magnetism lab I treated the following as a vector quantity 1.magnetic field lines as…

A:

Q: When an 78.8-kg adult uses a spiral staircase to climb to the second floor of his house, his…

A:

Q: The statement “if the electric field does positive work on a charge, the potential energy of the…

A:

Q: A wooden block experiences a frictional force, f, as it slides across a table. If a block of the…

A:

Q: Og of Water is heated from 0°C to 100 °C, and (c) 100 g of water is vaporized at 100 °C? Use the…

A:

Q: a boy throws a ball upward into a improvised basketball ring at an angle of 60degrees from the…

A:

Q: Do you know how much strain the rope must bear in order to accelerate an automobile that weighs 960…

A: Dear student The relation between force and acceleration is given by: F = ma

Q: R= 2002 ww I= 5A tılı V= ??? 2

A: Given data ,    Current  =  I    Resistance  =  R      To find ,           Voltage

Q: Problem 1: A beam of polarized light is sent into a system of two polarizing sheets. Relative to the…

A:

Q: +2Q 7. Two identical conducting spheres are charged to +2Q and -Q, respectively, and are separated…

A: Given data: Charge on the first sphere, q1=+2Q Charge on the second sphere, q2=-Q Distance between…

Q: In a transformer energy passes from the primary to the secondary 1.by the magnetic flux 2.through…

A: In a transformer , energy passes from primary to secondary ___

Q: A football is kicked with a speed of 40 m/s at an angle of 30 degrees. what is the maximum height…

A:

Q: If a P.D. of 12 V is applied across a 3º resistor then the current passing through it is (a) 36 A…

A: Given: The potential difference is 12 V. The resistance of the circuit is 3 Ohm.

Q: 3. A 2.0 mm diameter iron wire carries a current of 2.5 A. Determine : a.) the electric field…

A: diameter = 2 mm current (I) = 2.5 A

Q: The temperature on a warm summer day is 95°F. What is this temperature 1 in degrees Celsius? 2 on…

A: Given The temperature on a warm summer day is 950F Formula to find the the temperature in in degrees…

Q: It says that it's not the appropriate number of sig figs.

A:

Q: A stone is dropped from the top of a tower 40m height. At the same time another stone is thrown…

A: Initial velocity of the second stone=20 m/s Time to touch the ground of tje 1st stone =2.6 s

Q: Find Density of object of mass 280 kg which accupies space of 0.12 m³

A: Given data,           Mass  =  m         Volume  =   v         To find,             Density

Q: Explain what an electric current is and what electrons are.

A:

Q: A uniform, solid cylinder of radius 7.00 cm and mass 5.00 kg starts from rest at the top of an…

A:

Q: Find the Impulse on a body at rest when acted upon by a force of 0.40 N for 0.25 seconds.

A: Given data,       Force  =  F       Time  =  t        To find ,              Impulse

Q: A Terminal Velocity Find the terminal velocity of an 85-kg skydiver falling in a spread-eagle…

A: Given: mass of sky diver, m=85 KgTo find:Terminal velocity, v=?

Q: An object of mass m1 experiences a linear, elastic collision with a stationary object of unknown…

A:

Q: A rifle with a weight of 35 N fires a 5.5-g bullet with a speed of 270 m/s. (a) Find the recoil…

A:

Q: The electric field intensity at a spot P is 2 N/C  due  to a point charge Q . Compare the force…

A:

Q: What are the practical applications of the photoelectric effect?

A: Photoelectric effect As electromagnetic radiation of suitable frequency falls on a metal surface,…

Q: If a bus travelling at 38 m/s is subjected to a steady deceleration of 6 m/s², how long will it take…

A: Given data,   Initial velocity  =  u   Final velocity  =  v   Deceleration  =  a       To find ,…

Q: 13. (I) Determine the direction of B for each case in Fig. 20-53, where F represents the maximum…

A: Given, three cases in which direction of maximum magnetic force as well as direction of velocity on…

Q: Two objects, a sphere and a block of the same mass, are released from rest at the top of an inclined…

A:

Q: 29) A 10-A current flows through a wire for 2.0 min. (e=1.60 x 10-19 C) (a) How much charge has…

A: Given data-          amount of current = 10 A         total time during which current flows ( T ) =…

Q: 10 slamexs one goissont bas Activity 2: Happy or Sad? Draw a if you think the changes presented in…

A: Disclaimer: “Since you have asked posted a question with multiple sub-parts, we will solve the first…

Q: 17) Two very small +3.00-uC charges are at the ends of a meter stick. Find the electric potential…

A: Given data The charge at the end of the meter stick is given as Q=3 μC. The coulomb's constant is…

Q: What happens to the power that is released as sound travels through the air?

A: Let us discuss first how the sound wave travels fron the source to our eardrum. The source of a…

Q: 2 A, ¹- (224 i= 2t² A if 0 1

A:

Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!