14E. A space traveler whose mass is 75 kg leaves the Earth. Compute his weight (a) on Earth, (b) on Mars, where g 3.8 m/s, and (c) in interplanetary space, where g 0. (d) What is his mass at each of these locations?

... T An object with mass m is hanging from a wire attached to the ceiling of an elevator. The elevator is moving downward and its speed is increasing at rate of a = 5 m/s?. Which one of the following statements is true? (A) T=mg B T=mg-a T=m(g+a) D T=m(g-a)

Standing on a weighing scale, a 50-kg person is inside an elevator. What would the scale read if the elevator accelerates upward (away from the Earth) at a rate of 0.25g (or 25% of the acceleration due to gravity)?

A spaceship takes off vertically from rest with an acceleration of 29.0m/s2. What force is exerted on a 75.0-kg astronaut during takeoff? Express your answer in newtons and also as a multiple of the astronaut's weight on Earth.

I have a question for elevator problems: Newton's law states that there is always an equal and opposite force. But for elevator problems, if it accelerates upwards... we say that the normal force is greater than the gravitational force. So is Newton's third law still applied here and if so how? Because technically the opposite force is not equal in magnitude for it to be able to accelerate

The phenomenon of diffraction occurs due to the tendency of waves to spread when they encounter an opening or obstacle. Single-slit diffraction is a phenomenon observed when a wave passes through a narrow opening, such as a slit, and spreads out after passing through it. The degree of diffraction depends on the dimensions of the aperture in relation to the wavelength of the incident wave. Statement: A slit of width a is illuminated with white light. For what value of slit width will we have the first minimum for blue light, with ? = 450 ??, appearing at ? = 25th? Question options: a) 1.50 µm b) 1.98µm c) 1.05µm d) 3.60 µm e) 0.37µm

How much force would a car’s tires need to provide to accelerate an 1800 kg car at a rate of 4.0 m/s2?

A person on a weight scale in an elevator, moving at a constant speed downward, measures their weight to be 980 N. The elevator then comes to a rest, causing the person to experience an acceleration of 1.20 m/s2 upward. What is the person’s ‘weight’ when the elevator accelerates?

How much force would a car’s tires need to provide to accelerate an 1800 kg car at a rate of 4.0 m/s2?

Standing on a weighing scale, a 50-kg person is inside an elevator. What would the scale read if the elevator accelerates DOWNWARD (towards the Earth) at a rate of 0.20g (or 20% of the acceleration due to gravity)? * 23 kg. 34 kg. 40 kg. 57 kg. 63 kg.