Automobiles are equipped with airbags. Explain the mechanisms behind the  airbags, why they can prevent death during car accidents.

Q: 10. In November 1984, astronauts Joe Allen and Dale Gardner salvaged a Westar-6 communications…

A: Gravitation is the force of attraction that bodies exert on one another as a result of their mass.

Q: A firefighter, 50 meters from a burning building, shot the pressurized water coming out of the…

A: Given  v=40m/s θ=30 Distance from building d=50m

Q: Q8: If the perigee velocity is a times the apogee velocity, calculate the eccentricity of the orbit…

A: Solution:-

Q: What happens to the mass equilibrium when you move to Jupiter? To the moon? Explain why this…

A:

Q: in the absolute gravity observation instruments, the body is released allowed to fall in a vacuum.…

A: By  S = ut + (1/2)gt^2 22 = 0 + (1/2)g ×2.118^2  g = 44/2.118^2 g = 9.81 m/s^2

Q: What is a condition of equilibrium? How do we know we've reached a state of equilibrium?

A: A solid body submitted to three forces whose lines of action are not horizontal is in equilibrium if…

Q: It is proposed that future space stations create an artificial gravity by rotating. Suppose a space…

A: Given data: Diameter d=1600 mm =1.6m Radius r=d2=1.62=0.8m

Q: Two spheres of mass m, and m, are situated in air and the gravitational force between them is F. The…

A: Write the equation for the gravitational force between the two spheres. F=Gm1m2r2 Here, The…

Q: Through what distance will body A in fig. P-1408 move in changing its velocity from 6 ft per sec to…

A: Mass of A =200lb Mass of B=300lb

Q: Hello, I have a question - Explain how you could produce a large acceleration using a very small…

A: You could produce a large acceleration using a very small Force only when :-(i) the mass is very…

Q: [Q6] Three satellites orbit a planet of radius R, as shown in the figure. Satellites Si and S3 have…

A: Force on the planet is the centripetal force acting on the planets rotating in the orbit.…

Q: An astronaut has a mass of 120 kg.  She recedes from her spacecraft using spurts of gas from a small…

A: Given:  mass, m = 120 kg  force, F = 50 N

Q: . An astronaut on a space walk discovers that his jet pack no longerworks, leaving him stranded 50 m…

A:

Q: Vhat Have I Learned So Far? that the vessel cruises the water at a speed of 5 m/s. water? Solution:

A: By concept of relative motion 1) V = 5+1 = 6m/s  2) V = 5-1 = 4m/s

Q: Name: Date: Freefalling-Level 3 (Ignore air resistance, use 9.8 m/s for gravicy a (m/s2) 1. 2. [03]…

A:

Q: A 50 kilogram space explorer weighs 31 newtons on the surface of Pluto. The acceleration due to…

A: Given data The mass of the space explorer is given as m = 50 kg. The weight of the space explorer…

Q: Two untethered astronauts on aspace walk decide to take a breakand play catch with a…

A:

Q: What is induced drag on wings? Can induced drag be minimized by using long and narrow wings or short…

A:

Q: What is drag force? Distinguish between viscous drag and high speed drag.

A:

Q: 2 What aue caue torce is needed to accelercte a 16.85-gram pellet from rest to 124 mis over a…

A: Part (2): Given: The initial speed of the pellet is 0 m/s. The final speed of the pellet is 124 m/s.…

Q: Which BEST explains why Clarence's statement about keeping his car at a constant velocity is wrong?…

A: We know that velocity is a vector. Vector: A quantity which contains information about the magnitude…

Q: microns, what is its maximum speed of fall? The density of water

A:

Q: Assume that an enough large asteroid (m = 30,000 kg) coming from the deep space (out of our galaxy…

A:

Q: O Introduction to Tec... Welcome, Dominik Banegas D Performance Matters Question 11 of 13 -…

A: When gravity relates to the mass of the two objects and the distance between the two objects a law…

Q: 7 Given the following ideal Atwood machine in an elevator accelerating down at a, = 4.9 m/s², with…

A:

Q: what is mutual force

A: Force is a vector quantity which has both directions and magnitude .

Q: On Jupiter g is 26.0 m/s/s. If you go skydiving on Jupiter (bad idea) and you were to fall for 5.2…

A: Given data The gravitational acceleration Jupiter is g = 26 m/s2. The time travel is given as t =…

Q: True or false "Cars are less efficient in cold weather"

A: The efficiency of the cars is less in cold weather. This is because there is an increase in energy…

Q: In your own words describe the Isaac Newton's laws of motion?

A: The three laws of motion help us understand how objects behave when they are standing still, when…

Q: Why we tend to fall forward when a car stops suddenly?

A: When the car is moving, our upper part is at rest but the lower part is moving in the forward…

Q: Explain why the speed of a whirlwind iun a torando is alarmingly high.

A: In a tornado, the air from the nearby areas gets concentrated around the centre of the tornado.As…

Q: 2 H1.4-19 black slides accoss a cough sufere Such that Yt slows down wHh an accelecation 2 1.25 mis?…

A:

Q: Why must we use rocket propulsion systems in space, rather than another method to create the…

A:

Q: Suppose I drop a 44-kg anvil from rest and from such a height that the anvil reaches a speed of 10…

A: The given values are, manvil=44 kguanvil=0vanvil=10 m/suearth=0vearth=?mearth=5.972×1024 kg

Q: 9- In the absence of air resistance, the object released from rest in free-fall whose speed is…

A: given object is released from rest in free fall  no air resistance present here

Q: Can you push the stuck cars back down the track and have them separate on their own?

A:

Q: what is an example of something that has a lot of volume but not a lot of mass?

A: Any body that has a lot of volumes doesn't mean it will have a lot of mass.

Q: Which is heavier, 100 kg of feathers or 100 kg of lead? Which one takes us more volume? Why

A: Introduction: Weight: The weight of the object is defined as the force exerted by gravity on the…

Q: We learned in class that even though astronauts look like they are floating in space, they really…

A: The acceleration due to gravity g at a distance r from the center of Earth is given by, g = GMr2…

Q: VA person lifting and raising a dumbbe OA snowboarder travelling down a fric OLifting a 1kg box…

A: Which of the following are examples of non-zero work?    Find:- Choose all that apply. A person…

Q: 3. Let's imagine that the earth is shrinking and we want to escape before it is too late. Let's set…

A:

Q: Use the approximation that g=~10 m/s2 to fill in the blanks in the following diagram.

A: Given:  m = 80 kg  g = 10 m/s2 Angle, A = 120 degree

Special Relativity

The theory of special relativity discusses how space and time are related to objects traveling along a straight line at a constant speed. Simply stated, as an object reaches the speed of light, its mass becomes infinite and it is unable to move faster than light. This interstellar speed limit has been the topic of much debate in astronomy, and also in science fiction when people consider how to fly over large distances.