Consider a gas of pure ionized hydrogen. Calculate the central pressure of a Sun- like star which is having a temperature of 2×10 K and a mass density of 2x10° kg/m². (a) 33.2x10" pa (b) 1148x10" pa (c) 28.4x10" pa (d) 3348x10" pa

Q: You drive 5 km at 30 km/h and then another 5 km at 50 km/h. What is your average speed for the whole…

A:

Q: An airplane makes a gradual 90◦turn while flying at a constant speed of 200 m/s. The processtakes…

A: Given: The intial speed of the plane is 200 m/s. The final speed of the plane is 200 m/s…

Q: A child sitting 1.10 m from the centre of a merry-go-round. He moves with 1.70 m/s Calculate the…

A:

Q: #O At time t-o a drwer befins "deceleuating at a corstant rate -10mls?, and Cemesª to a halt afte…

A: Solution

Q: Sam is running 5 km/h N on a flatbed truck that is traveling 10 km/h N on an aircraftcarrier that is…

A: Given that, The velocity of the Sam is us=5km/h towards the north on the truck The velocity of the…

Q: E2. A walker covers a distance of 1.4 km in a time of 30 minutes. What is the average speed of the…

A: Given value--- distance = 1.4 km. time = 30 min. We have to find--- speed in km/h ? convert speed…

Q: Which is always true for an object in uniformly accelerated motion? A. Its velocity is constant. B.…

A: Given : an object is in uniformly accelerated motion

Q: A rock, thrown upward was travelling at a speed of 4 m/s when its height was 4m. Find the speed of…

A: Given: The initial speed of the rock is 4 m/s vertically upward. The height of the object from the…

Q: You are driving north-east at 60 miles per hour. Your friend is driving north-west at 70 miles per…

A: Velocity V1 = 60 miles per hour in north east direction.  Velocity V2 = 70 miles per hour in north…

Q: How long does it take a baseball to travel the 18.4 m from the pitcher's mound to home plate when…

A: Given data The distance traveled by the ball is given as d = 18.4 m. The speed of the baseball is…

Q: A man flies a small airplane from Fargo to Bismarck, North Dakota --- a distance of 180 miles.…

A:

Q: Velocity - Constant ; ii. Velocity - Constant Velocity - Changing ; Velocity - Changing; 1.…

A: When velocity is constant then acceleration must be zero so ii can not be true because acceleration…

Q: Weddell seals make holes in sea ice so that they can swim down to forage on the ocean floor below.…

A: To Find: the speed of the diving seal. Given that seal reach a depth of 0.30 km in time of 5 min.

Q: A boat move slowly inside of a marine with a constant speed of 1.50 m/s. Then it throttles up and…

A: Given :      Initial velocity, u = 1.50 m/s     acceleration, a = 2.40 m/s2     Time, t = 5 s

Q: You are riding a donkey that gets scared by an earthquake. If the donkey was originally traveling at…

A: Given: The initial velocity of the donkey is 12.5 m/s. The final velocity of the donkey is 13.7 m/s.…

Q: while flying at a constant speed of 200 m/s. The processtakes 20.0 seconds to complete. For this…

A: Average acceleration refers to the rate at which the velocity changes. Here, we calculate the given…

Q: A 4 kg bowling ball is dropped from a building, and accelerates down toward the earth at 9.8 m/s^2.…

A: Given data:  A 4 kg bowling ball dropped from the building Acceleration = 9.8 m/s2, down towards the…

Q: A ball is thrown straight up with a velocity of 20 m/s. At the top of its path its acceleration is:…

A: When a ball is thrown up with an initial velocity of 20m/s, the velocity of the ball decreases as…

Q: If a bee flies from a petunia to a marigold, and then returns to the petunia,   a. his average…

A: motion of bee : (i)  from a petunia to a marigold                          (ii)  from a marigold to…

Q: Moving at a speed of 20 m/s, a tricycle carrying a civil engineer begins slow at a constant rate of…

A:

Q: A car pulls away from a stop sign with a constant acceleration. After traveling 10 m, its speed is 5…

A:

Q: A child sitting 1.30 m from the centre of a merry-go-round. He moves with 1.60 m/s Calculate the…

A:

Q: If a bee flies from a petunia to a marigold, and then returns to the petunia,   a. his average…

A:

Q: Over the course of a day, Dr. Kratzer leaves her home, travels 10 miles to Drexel, walks about 2…

A:

Q: Suppose a plane accelerates from rest for 30 s, achieving a takeoff speed of 80 m/s after traveling…

A: Given: a plane accelerate from rest for 30s to achieve a take off speed of 80ms after travelling a…

Q: A horizontal spring attached to a wall has a force constant of 890 N/m. A block of mass 1.40 kg is…

A: (a) OBJECTS CONSITUTING THE SYSTEM AND FORCES INTERACT Mass of block , Spring and Earth are the…

Q: A space probe leaves the solar system to explore interstellar space. Once it is far from any stars,…

A: We are given that a space probe leaves the solar system and we need to find when to fire the rocket…

Q: Before the SpaceX Falcon 9 rocket enters into outer space, it accelerates upward according to…

A: Given-             acceleration (a) = 3t2 m/s2                initial speed of rocket = Vi = 10 m/s

Q: 30* Oa. -5.9 m/s b. -7.9 m/s 5.7 m/s d. 8.7 m/s 32 A river flows at a velocity, "₁", of 8.0 m/s…

A: Given: The velocity of the river, v1=8 m/s30∘N of W The velocity of the swimmer in still water, v2=2…

Q: A jet is moving up with an acceleration a in the upwards direction. At an instant the driver throws…

A: A coin is thrown form the jet

Q: A proton is located in space describe by the function x (t) = 2t3 – 9t? + 12 meters, where t is in…

A:

Q: A car is traveling at Vx= 20 m/s. The driver applies the brakes, and the car slows with ax =4.0 m/s…

A: Given:A car travelling at the speed of 20m/s. The driver applies the braker, and the car slows with…

Q: The speedometer on a car's dashboard measures which of the following quantities? 40 50 60 00101 1- -…

A: A speedometer or speed meter is a guage that measures and displays the instantaneous speed of a…

Q: Suppose a plane accelerates from rest for 30 s, achieving a takeoff speed of 80 m/s after traveling…

A:

Q: A truck starts from rest and reaches a speed of 60km/h in 3 minutes. The acceleration of the truck…

A:

Q: A car traveling to the east begins to slow down as it approaches a red light.  Which of the…

A: As a car is moving in the east direction and it approaches the red light, the car will be slow down…

Q: A car is stopped at a traffic light. It then travels along a straight road such that its distance…

A: Differentiate the function of distance with respect to time to obtain the function of velocity.…

Q: A ball is dropped in a stationary elevator and hits the floor in 0.65 s. How long does it take for…

A: Using equation of kinematics