If a star 10 parsecs away from us was moved and appeared to be 4 times brighter after movement, how many parsecs is the star away from us now?

Q: 7. Two carts collide on a level, frictionless track. Just before they collide, the 370 g cart had a…

A: Note;“Since you have posted multiple questions, we will provide the solution only to the first…

Q: person lifted a bag of groceries 2.89 m from the floor onto a counter top using a constant force of…

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Q: Robert has just jumped out of an airplane and has deployed his parachute. He is currently traveling…

A: Solution: As given that initial velocity  u = 8.2 m/s height h = 426 m to calculate the time takne…

Q: An old streetcar rounds a flat corner of radius 8.10 m, at 24.0 km/h. What angle with the vertical…

A: "Since both questions are different, as per bartleby guidelines we can author only 1st one. Please…

Q: A rocket, initially at rest on the ground, accelerates straight upward from rest with constant (net)…

A: In the given problem, the rocket starts accelerating straight upwards, starting from rest, with a…

Q: In the Projectile Motion lab a student measures the height of the projectile launcher off the floor…

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Q: A baseball player with mass m = 80.0 kg, sliding into second base, is retarded by a frictional force…

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Q: cting báck on the example of Katie dropping the tennis ball, how do you а. think a gravitational…

A: gravitational force F = Gm₁m₂/r²

Q: Some European trucks run on energy stored in a rotating flywheel, with an electric motor getting the…

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Q: 124. The diagram below represents a 10.-newton block sliding at constant speed down a plane that…

A: Since object is moving with constant speed hence acceleration acting on it is zero so net force…

Q: 3. A box (mass = 100 g) is initially connected to a compressed (x = 80 cm) spring (k = 100 N/m) at…

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Q: Lobster got trapped and now is stuck in a restaurant Lobster tank (which is a cube with side L and…

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Q: In the figure, a frictionless roller coaster car of mass m = 811 kg tops the first hill with speed…

A: Given: m=811 kgvo=16 m/sh=41 m

Q: 2. The car shown is just to clear the water-filled gap. Find the take off velocity. 30 6.0 m 30 W.5.…

A: a) This is a projectile motion.   Given the car takes off from height h=6.0m And cross River width…

Q: Determine the work done by an electric motor lifting an elevator and its occupants weighing 2200 lb…

A: weight = m g = 2200 lbdistance between each floor = 15 fttotal height = h = 5 x 15 = 75 ft

Q: 5) Snowballs make perfectly inelastic collisions; when two snowballs slam into each other, they…

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Q: 3. Consider the hydrogen atom as a small planetary system with the proton playing the role of the…

A: Here, the hydrogen atom is considered to be a system similar to planetary motion with the proton as…

Q: State law of conservation of energy.

A: Statement of Law of conservation of Energy:The law of conservation of energy states that energy can…

Q: Water pressurized to an absolute pressure of 3.00 x 10° Pa is flowing at 5.25 m/s in a honzontal…

A: We have the following information  P1=3*105 Pa V1=5.25 m/s r1=radius A1=area A2=A1/2 r2=1 cm = 0.01…

Q: The unit of Power (P) is

A: We have to answer the unit of Power (P)

Q: The figure shows a three-particle system, with masses m1 = 1.5 kg, m2 = 3.9 kg, and m3 = 6.4 kg.…

A: Given data:  m1 = 1.5 kg, m2 = 3.9 kg and m3 = 6.4 kg

Q: Please, I need help on this problem. Thank you.

A: a) It is given that

Q: The wavelength range of visible light is usually taken to be from 400 to 700 nm, although it can…

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Q: The magnetic field in (Figure 1) is decreasing at the rate 0.60 T/s. Figure What is the magnitude…

A: Given rate of decreasing magnetic field dBdt = 0.6 T/s radius of circle r = 1 cm = 0.01 m

Q: and the floor. c The applied pulling force is steadily increased. Just before the box moves forward,…

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Q: 008 47. . A dropped rubber ball hits the floor with a speed of 8.0 m/s and rebounds to a height of…

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Q: As you see in Fig.5, a block of mass m = 0.59 kg is supported by a light rope that wraps around a…

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Q: If resistance of 1000ft of copper wire is about 1 omega at room temperature (68F),

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Q: 4) (1) Show that when an ice cube floating in a glass of water is melting - the water level does not…

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Q: 7. Using conservation of mechanical energy concepts, calculate the kinetic energy and velocity of a…

A: The conservation of energy states that 'if there is no external force acting on a system then the…

Q: 11. Consider the equation W = F(cos Ad. (a) Using the equation, explain why a force perpendicular to…

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