Sunlight above the Earth's atmosphere has an intensity of 1.39 kW/m2. If this is reflected straight back from a mirror that has only a small recoil, the light's momentum is exactly reversed, giving the mirror twice the incident momentum. (a) Calculate the force per square meter of mirror (in N/m2).

Q: 3. A 5.0-g bullet travelling at 625 m/s strikes a block, causing it to move back by 6.0 cm before…

A: In a given problem we have to assume that the force is constant so according to Newton's law the…

Q: > The sledder shown in (Figure 1) starts from the top of a frictionless hill and slides down into…

A:

Q: A 500 g particle has velocity vx = -8.0 m/s at t =-2 s. Force Fx=(4−t^2)N, where t is in s, is…

A: See below

Q: You have a wave with a frequency of 777.9 Hz. What is the period of the wave, in seconds? Your…

A:

Q: Certain neutron stars (extremely dense stars) are believed to be rotating at about 1.5 rev/s. If…

A: See below

Q: 4. A 0.240 kg tennis ball is hit forward with a speed of 26.0 m/s. It is returned in the opposite…

A: Mass of ball is Initial velocity of ball is Final velocity of ball in the opposite direction is…

Q: What are the expected readings of the ammeter and voltmeter for the circuit in the figure below? (R…

A:

Q: A displacement vector in the xy plane is 48.0 m long and directed at angle 0 = 35.0° in the figure.…

A:

Q: A point charge, Q=-5.1nC, is placed at the center of a hollow spherical conductor (inner radius =…

A:

Q: In the circuit below, it is known that C1 = 10μF and the other three capacitors have the same…

A:

Q: Copper wire of diameter 0.256 cm is used to connect a set of appliances at 120 V, which draw 1700 W…

A:

Q: 22. The diagram shows a closed container partially filled with liquid. Point Y is 1 m below the lid,…

A: Given data: Depth of point Y from the lid: Depth of point Z from the lid: Pressure at Point Y:…

Q: Two objects, A and B, are in contact with each other on a frictionless surface. Object A has a mass…

A: We have two objects A and B, which are in contact with each other on a frictionless surface. The…

Q: In the figure, a 110 kg uniform log hangs by two steel wires. A and B, both of radius 1.05 mm,…

A:

Q: Could I get a recheck on this work please the answer seems to be off.

A:

Q: 10. If the launch angle of a projectile is decreased, (a) the maximum height decreases (b) the time…

A:

Q: Electron with a charge of -1.8x10^-19 C. A uniform and homogeneous medium with a magnetic field of…

A: Electron with a charge q = -1.8x10^-19 C       Speed of electron  v = 6.8 x107 m/s  i…

Q: a b Ꮎ F

A:

Q: A duck has a mass of 2.5 kg. As the duck paddles, a force of 0.10 N acts on it in a direction due…

A:

Q: Ing wave pattern on a string is described by y = 0.06 (sin7nx) (соs60nt) where x and y are in meters…

A: Equation of standing wave                    y=0.06Sin(7πx)Cos(60πt)        Where x in meters and t…

Q: The two metal objects in the figure have net charges of +65 pC and-65 pC, which result in a 22 V…

A:

Q: An airplane is traveling in level flight at a constant velocity. L is the lift, W is the weight, T…

A:

Q: Write the vector expression for the acceleration a of the mass center G of the simple pendulum in…

A: For the simple pendulum

Q: A customer service person in a department store is wrapping packages for customers. The ribbon spool…

A: See below

Q: What percentage of a radioactive substance remains after  7.00 half-lives have elapsed?

A: Time=7 half life

Q: Which of the following factors affects the pressure exerted by a fluid at a given depth? O Density…

A: Concept: The pressure exerted by a fluid at a given depth is affected by several factors. These…

Q: 3. Shown in the figure below are two point charges, Q₁ and Q2, and the location of point P. All…

A: Charge Q1=+4uC , at (x=-1, y=0) Charge Q2=-2uC , at (x=2, y=-1) Point P= (x=4, y=4)

Q: What is the current through an 8 Ω toaster when it is operating on 120 V?

A: Given

Q: Tennis balls are tested by measuring their bounce when dropped from a height of approximately 2.5 m.…

A: To determine the final speed of a tennis ball dropped from a height of 2.5 meters, we can use…

Q: The cable lifting an elevator is wrapped around a 1.2-m-diameter cylinder that is turned by the…

A:

Q: Consider the motion of a baseball. It has an initial position (Xo Yo) = (0,3.5) feet when it is hit…

A:

Q: Three particles of charge 3nC and mass 5mg are placed on the corners of an equilateral triangle with…

A:

Q: 8: Two manned satellites are approaching one another at a relative speed of 0.24 m/s, intending to…

A: Two manned satellites are approaching one another at a relative speed of 0.24 m/s, intending to…

Q: The 9.50-cmcm-long second hand on a watch rotates smoothly. What is its angular speed? What is the…

A:

Q: (a) What is the final pressure in the tank, assuming a negligible amount of gas leaks while being…

A:

Q: A uniform electric field with a magnitude of 2300 N/C points in the negative z direction, as shown…

A:

Q: Problem 2 A man is standing on the platform of a merry-go-round, not holding on to anything. The…

A: Time period of merry go round, T=10s From part (a), (b),(c) Angular velocity=0.628 rad/s Centripetal…

Q: A-2.0 μC charge lies at the position x = 0.0 cm and a 4.0 µC charge lies at the position x = 6.0 cm.…

A:

Q: After factoring in all the electrons and protons in a water molecule, the electric field has the…

A:

Q: What is the momentum of the system in (kg m/s before the coal is added? What is the velocity after…

A:

Q: Consider a cylindrical surface in this electric field as shown in the figure. Electric field vector…

A:

Q: Problem 1.1.3. Four point charges q₁ = 9, 92 = 2q, q3 = 3q, and q₁ = 4q are placed on the corners of…

A: The electric field due to a charge is given by-                                         where q is…

Q: An elevator, complete with contents, has a mass of 2000.0 kg. For each of the two situations…

A:

Q: In a downtown office building, you notice each of the four sections of a rotating door has a mass of…

A: Mass of each door m= 80 KgAngular  acceleration α=0.500 rad/s2Applied Force F=66 N

Q: > A 5.4 kg cat and a 2.5 kg bowl of tuna fish are at opposite ends of the 4.0-m-long seesaw. (Figure…

A: Torque refers to the rotational force or moment that causes an object to rotate around an axis. In…

Q: Figure 4.0 cm 30 N 20 N 1 of 1 In (Figure 1), what is the net torque about the axle? Express your…

A: Page 1

Q: If the resistors in the circuit shown have values ​​of R1=10 Ω, R2 = 10 Ω, R3 = 5 Ω, R4 = 5 Ω, and…

A:

Q: 7- A 1500 kg car accelerates from rest. Below figure shows the net force on the car (propulsion…

A:

Q: Object A weighs twice as much as object B at the same spot on the earth. Would the same be true at a…

A: This problem can be solved using the concept of weight dependency on mass and acceleration due to…

Q: Discharging Capacitor: Kirchoff's loop rule applied to the discharging capacitor circuit gives 2- C…

A: The time constant of an RC circuit is the product of the resistance R and capacitance C,…

Relativistic Energy and Momentum

According to classical physics, time flow is the same for every observer. But according to einstein's theory, time flow is different for different observers. The idea that time flow is not the same for all may sound strange because we may not experience this effect in everyday life. This effect is only observed when an object moves with some velocity comparable to the velocity of light. This velocity is termed relativistic velocity.