Rocket A travels to the right and rocket B travels to the left, with 0.5c and 0.7c respectively, relative to the Earth. What is the velocity of rocket B measured from rocket A?

Q: A typical television dissipates 275 W when it is plugged into a 120 V outlet. a). Find the…

A: Power of television (P) = 275 W Voltage of the outlet = 120 V

Q: 1. What resistance must be placed in parallel with a 12 2 resistor to obtain a combined resistance…

A:

Q: Light of a wavelength of 725 nm is incident on a single slit of a width of 10.2 μm. Assuming the…

A: Given that central maxima is 2.89cm = 0.0289m The width of central maximum is given by 2λD/a where a…

Q: Newton's Laws of Motion 6. A skier wishes to build a rope tow to pull herself up a ski hill that is…

A:

Q: Find the Force Impulse=20 N*s Time=2 s

A: Given data:  Impulse (I) = 20 N.s Time (t) = 2 s Required: Force (F)

Q: I can not see the equation clearly. Can you show it  in other method or by handwrite?

A: Please see the answer below.

Q: 10) An aluminum rod 17.400 cm long at 20°C is heated to 100°C. What is its new length? Aluminum has…

A: Solution:-

Q: 3.5m

A: We have a block of mass m=4 kg which is initially at point 1 (at rest so velocity v1=0) that is at a…

Q: "The ratio of wave height to wavelength is a measure of the steepness of a wave. Generally, the…

A:

Q: A ship's sonar uses a frequency of 22.5 kHz. The speed of sound in seawater is 1533 m/s. a). Draw a…

A: (b) Here,  fs=22.5KHz, v=1533m/s, vs=-4.15m/s, vd =0 Frequency received is fd=fs(v-vd)/(v-vs) =…

Q: A 5000 kg aircraft towed at 10 m/s collides with a smaller aircraft that is 3000-kg mass initially…

A: Given data as per question m1  =   5000kg u1   =   10m/s m2   =  3000kg

Q: Find the Distance covered by train Speed-700 km/hr Time=5 hr

A: Solution: Given that speed = 700 km/hr time = 5 hr

Q: A portable radio transmitter has to operate at a temperature from -5°C to 35 °C. If its signal is…

A: Transmission Frequency   Transmission Frequency means the frequency of a radio wave transmitted from…

Q: Which of the following does NOT demonstrate Newton's first law of motion?     A bicycle parked on a…

A:

Q: Bulb A, B, C are 60 W lightbulbs. Bulb D is 100 W lightbulb. Which light bulb will be the dimmest? A…

A: Power of the bulb is given as P =V2RR =V2PThus, R∝1PSo,the resistance of bulbs A,B and C are and…

Q: 22. When an inflated balloon experiences a decrease in size, the air pressure inside the balloon…

A: Answer; (d)The average kinetic energy of the gas particles decreases, so the balloon becomescolder.

Q: 9. A lawn roller with a mass of 60 kg is being pulled with a force of 350 N. If the handle of the…

A: We have a mass of m=60 kg on which there is a force applied of magnitude F=350 N at an angle of 40o…

Q: A wire 1.5 m long has a cross-sectional area of 2.4 mm2. It is hung vertically and stretches 0.32 mm…

A:

Q: Write the equation for a harmonic wave with respect to x and t, travelling in the positive x axis…

A:

Q: Find the force Pressue=0.09 N/mm2 Area=2 mm2

A: Given : Pressure (P) = 0.09 N/mm2 Area (A) = 2 mm2

Q: An object is placed in front of a concave spherical mirror as shown below. The three rays 1, 2 and…

A:

Q: Two positively charged particles, each of magnitude 3.0 x 10-8 C, are fixed on the x-axis. One…

A: Given: The magnitude of the two positively charged particles: Q1 = Q2 = 3.0×10-8 C. The position of…

Q: When a 10-volt battery is connected to a resistor, the current in the resistor is 2 A. What is the…

A: From the Ohm's law,  V = IR where, V =potential difference or voltage I = Current in circuit R =…

Q: Find the time Speed=66.23 km/hr Distance 22 km

A:

Q: Q5) A person with severe myopia has a far point (a). (20cm) What is the strength of the lenses The…

A: The correct option is (B) (a) -5.00D (b) -5.00D

Q: Q2. In Figure Q2, ropes AB and AC are tied at point A which is 5 m from the base of the tree, O. The…

A: Draw the FBD and then decompose the forces for AB rope. For AC, its better to just take the cross…

Q: 10. The index of refraction of beer is about 1.35. What is the speed of light in beer?

A: Given: The refractive index of the beer is 1.35.

Q: In the figure, two blocks are connected over a pulley. The mass of block A is 6.10 kg and the…

A: The free-body diagram of block A is shown below.

Q: The inverse square law which you were initially introduced to applying to gravity, applies to Light…

A: Solution:-

Q: Find the Current Voltage-44 Volt Resistance-5.5 Ohm

A: Given data:  Voltage (V) = 44 V Resistance (R) = 5.5 Ω Required: Current (I)

Q: The horn of a car attracts the attention of a stationary observer. If the car is approaching the…

A:

Q: 3) The flux of the electric field (24 N/C)t + (30 N/C)j + (16 N/C)k through a 5.0 m² disk placed in…

A:

Q: 15) Which one of the following quantities is the smallest unit of heat energy? D) Btu A) joule B)…

A:

Q: Consider two resistors, R₁ and R₂, connected in parallel. Derive the expression that gives the total…

A:

Q: 04/ For the network in Fig.4 1. Write the equations necessary to solve for the branch currents. 2.…

A: Solution:-

Q: Question 3 Change the battery voltage slowly from 4 V to -4V. What do you observe?

A: When we change battery voltage slowly from    4 V to  -4 V then the direction of current in the…

Q: NOTE: Round off answer up to 5 decimal places. Answer should be in meter. Encode only the numerical…

A:

Q: Imagine you threw a ball straight up, waited for it to come down and then caught it. draw a correct…

A:

Q: 21) How much heat is required to raise the temperature of a 225-g lead ball from 15.0°C to 25.0°C?…

A:

Q: What is this symbol?

A: Time period: The time needed to finish single shaking or vibration is called a time period.

Q: 23) A carpenter is driving a 15.0-g steel nail into a board. His 1.00-kg hammer is moving at 8.50…

A: given: mass of steel = 15g hammer mass = 1 kg  velocity of hammer = 8.5m/s specific heat of steel =…

Q: A car, starting from rest, takes 12 seconds to accelerates uniformly, along a straight road, to a…

A:

Q: All I need is the letter of the correct answer. 31. If 4 identical resistors are combined in series,…

A: Both questions are different. As per bartleby guidelines we are supposed to answer only 1st…

Q: Answer the correct letter, i need only the correct answer 4) A body that moves at constant speed may…

A: Please see the answer below.

Q: If a 1300 kg car can accelerate from 30 km/h to 60 km/h in 3.9 s , how long will it take to…

A:

Q: (a) Given a 60.0 V battery and 14.00 and 72.00 resistors, find the current (in A) and power (in W)…

A:

Q: 38) In an adiabatic compression, 200 J of work is done on a gas. What is the change in internal…

A: We have a compression process which is adiabatic in nature where a work of W=-200 J is done on the…

Q: The radius of curvature of a spherical mirror is 24 cm. Calculate the focal length ?

A: In the given question, Radius of curvature of spherical mirror (R) = 24cm We are required to find…

Q: A simple pendulum acts as a conical pendulum when the mass moves in a horizontal circle. (a) What…

A: a) When the pendulum moves in a circle, the centripetal force keeps the mass moving in a circle. It…

Q: Answer the following questions about the car whose motion is graphed below: 40 D 30 20 d (m) 10 A 0…

A: Assume upward direction (positive side) is east and downward direction (negative side) is west.  (a)…