To convert miles per hour (mph) to meters per second (m/s), we can use the following conversion factor: 1 mile = 1609.34 meters 1 hour = 3600 seconds
So, to convert 72 mph to m/s: 72 mph * (1609.34 meters / 1 mile) * (1 hour / 3600 seconds) ≈ 32.18 m/s
Therefore, 72 mph is approximately equal to 32.18 m/s.
To convert pounds (lb) to kilograms (kg), we can use the conversion factor: 1 pound = 0.45359237 kilograms
So, to convert 50 lb to kg: 50 lb * 0.45359237 kg ≈ 22.68 kg
Therefore, 50 lb is approximately equal to 22.68 kg.
The gravitational force between two objects is given by the formula: F = (G * m1 * m2) / r^2
Given: Initial gravitational force F = 18 N Distance tripled (r' = 3r) Masses doubled (m1' = 2m1, m2' = 2m2)
Using the formula, we can calculate the new gravitational force F': F' = (G * (2m1) * (2m2)) / (3r)^2
Since G, m1, m2, and r are constant, we can simplify the equation: F' = (4 * G * m1 * m2) / (9 * r^2)
Substituting the initial force F = 18 N: F' = (4 * 18 N) / 9 F' = 8 N
Therefore, the gravitational force between the two objects after tripling the distance and doubling the masses is 8 N.
Given: Initial velocity (u) = 4 m/s Final velocity (v) = 10 m/s Time (t) = 3 seconds
a) The average speed of the car can be calculated using the formula: Average Speed = Total Distance / Total Time
Since the car accelerates, the average speed will be the arithmetic mean of the initial and final velocities: Average Speed = (u + v) / 2 Average Speed = (4 m/s + 10 m/s) / 2 Average Speed = 7 m/s
Therefore, the average speed of the car is 7 m/s.
b) The car's acceleration can be calculated using the formula: Acceleration = (Change in Velocity) / Time
Change in Velocity = Final Velocity - Initial Velocity Change in Velocity = 10 m/s - 4 m/s = 6 m/s
Acceleration = (6 m/s) / (3 s) Acceleration = 2 m/s^2
Therefore, the car's acceleration is 2 m/s^2.
c) The distance traveled by the car can be calculated using the formula: Distance = (Initial Velocity + Final Velocity) / 2 * Time
Distance = (4 m/s + 10 m/s) / 2 * 3 s Distance = 14 m/s * 3 s Distance = 42 m
Therefore, the distance traveled by the car is 42 meters.
d) The net force on the car can be calculated using Newton's second law of motion: Net Force = Mass * Acceleration
Since the mass of the car is not given, we cannot determine the net force without that information.
1.)Convert 72 miles per hour into meters per second 2.)Convert 50 lb into how many kg...
For two objects with masses 100kg and 500 kg to be 20 meters apart, find the gravity between them. You can find their answers from the textbook (no need to turn in) 2) Turn in homework (Show Work, due to be announced): A 1000-kg car moves as speed from 10 m/s to 30 m/s in 20 seconds. What is the average speed? What is the acceleration? What is the average force acting upon it? If the car turns along a...
1 Speed and acceleration (a) (5 pts) Convert a speed of 88.5km/h into meters per second. (b) (10 pts) If your car accelerates from rest at a steady rate of 4m/s, how soon will it reach a speed of 10m/s? (c) (10 pts) If your car slows goes from a positive velocity of 20m/s to a full stop in 5 s, what is the acceleration include the sign)?
10. You are driving home from class. Your home is 25 miles away. It takes you 20 minutes to get there. What is your average speed? 65 miles per hour 80 miles per hour 70 miles per hour 75 miles per hour 100 miles per hour 11. A chandelier hanging from the ceiling is in equilibrium. According to Newton's first law: the acceleration of the chandelier is decreasing. the net force acting on the chandelier is zero. there are no...
1a Convert the speed of 60 miles per hour to meters per second. Show all steps and units used. Do not just look up the conversion but derive it from more fundamental units. 1b Draw the vector Å=2î + 7. lc What is its magnitude Ă? Show work. What is the angle of A with respect to the Y axis? le Write out the unit vector for A.
1. Convert 60 miles per hour into meters per second. 2. A student is trying to remember some formulas from geometry. In what follows, assume A is area, V is volume, and all other variables are lengths. Determine which formulas are dimensionally consistent. (c) V-0.5bh, (e) V nd 3. The length of a warchouse is measured to be 95.00m. The height of the roof is measured to be 1,350.00cm. The width is measured to be 0.0015km. Calculate the volume of...
1 of 2) Calculate the speed, C, (in meters per second) of a tsunami with a wavelength of 180,000 meters (180 kilometers or112 miles) and period of 15 minutes traveling over the Pacific (which has an average depth of 4000 meters (4 kilometers or 2.5 miles). Round up your answer so that there is no decimal. Note that the answer is not 200 m/s as it is incorrect 2 of 2) Using the speed of the tsunami that you calculated...
3. Based on the tiles shown, how many meters per second is equivalent to 72 kilometers per hour? wwtec 1000 meters 1hu THOAC 3600 seconds OA 0.27 m/s OB 20. m/s O C.36 m/s O D. 1,000 m/s 4 Apumpkin has a mass of 314 ounces. Based on the tiles below, what is the mass of the pumpkin in kilograms? 1000 grams 1000 milligrams 1000 kilograms 1 killogram 1 gram 1 metric ton 453.6 grams 28.35 grams 2.205 pounds 1...
Please show your work 1. Convert 4598 grams into pounds 2. Convert 1600 meters into miles 3. Convert 15 MPa into pound per square inch 4. Convert 50 kPa into pounds per square foot 5. A bucket contains 576 mL of water. What is the volume of water in quarts? 6. Convert 40 miles per hour into meters per second 7. Convert 20 gallons per minute into liters per second 8. Convert 200 gallons per minute into cubic feet per...
1.) A 1000-kg car moves as speed from 10 m/s to 30 m/s in 20 seconds. What is the average speed? What is the acceleration? What is the average force acting upon it? If the car turns along a circle speed at 5 m/s around a curve 30 meters in radius, how big the centripetal is needed? 2.) For two objects with masses 100 kg and 500 kg to be 20 meters apart, find the gravity between them
1.) A 1000-kg car moves as speed from 10 m/s to 30 m/s in 20 seconds. What is the average speed? What is the acceleration? What is the average force acting upon it? If the car turns along a circle speed at 5 m/s around a curve 30 meters in radius, how big the centripetal is needed? 2.) For two objects with masses 100 kg and 500 kg to be 20 meters apart, find the gravity between them.