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- A car is traveling at a speed of 33 m/s. (a) What is its speed in kilometers per hour? (b) Is it exceeding the 90 km/h speed limit?(a) A car speedometer has a 5.0% uncertainty. What is the range of possible speeds when it reads 90 km/h? (b) Convert this range to miles per hour. (1Km=0.6214)2. A girl jogs around a horizontal circle with a constant speed. She travels one half of a revolution, a distance of 20.0 m along the circumference of the circle, in 8.00 s. a. What is the radius of the circle in meters? b. What is the period? c. What is her speed? d. What is her radial acceleration is?
- 2. A car is traveling at a speed of 31 m/s. a. What is its speed in kilometers per hour? b. Is it exceeding the 90 km/h speed limit?1. A Projectile with a muzzle velocity of 550 m/sec is fired from a gun on top of a cliff 460 m above sea level. If the projectile hits the ocean surface 49.2 seconds after being fired, determine: Draw the figure properly. No figure no point. a. The angle of elevation of the gun; b. The range c. The highest point attained above the cliff. y V, H water surface (w.s.) R4. A plane traveling at 192 km/h [N] is blown eastward by the wind with a speed of 56.0 km/h. What is the velocity of the plane with respect to the ground? a. 1.36 x102 km/h [E 16.3o S]b. 2.00x102 km/h [N 16.3o E]c. 2.00x102 km/h [N 73.7o E]d. 2.48x102 km/h [E 73.7o S]e. 1.36 x102 km/h [N 73.7o E]
- 5. Nerve impulses in giant axons of the squid can travel with a speed of 20.0 m/s. How fastis this in (a) ft/s and (b) mi/h?A truck moves with a speed of 68 mi/h. how much is this speed in S.I. units? (1 mile = 1.609 km) O a. 30.39 m/s O b. 152.14 m/s O c. 30.39 km/h O d. 18.89 m/sV/A Spelunlier drops astone off of aclıff inadarl cave at the instmat he starts his stonwatch.Hehears the stone hit water 1.3secends utter he releases it. How fe below is the water? Give yor mswer in feed. A27.2 ft B 8.3 t7 ८घ दा cis.4 ft D)9.0 t# 3D. 2 ft
- 1. The final push to the summit of Mt. Everest starts at Camp 3. Your displacement from Camp 3 to Camp 4 is 400 meter west, 600 meter south, and 100 meter up. From Camp 4 to the peak is 900 meter east, 200 meter south, and 200 meter up. a. What is the displacement from Camp 3 to the peak of Mt. Everest? Give distances east/west, north/south and up/down from Camp 3 to the peak. b. What is the straight-line distance from Camp 3 to the peak of Mt. Everest? The straight-line distance is the distance if you drew a straight line from Camp 3 to Mt. Everest.1. How does a scalar quantity differ from a vector quantity? 2. An airplane travels east at a rate of 800 km/h for 2 h. Which of the following are vectors?a. The travel timeb. The distance traveled in 2 hc. The displacement after 2 h 3. Which pair/s of forces will yield a resultant of 6 N?a. 3 N and 3 Nb. 2 N and 4 Nc. 10 N and -4 Nd. 10 N and 4 Nmy question is in the image. I have been doing this wrong for a while and I cant figure out where I am doing this wrong. I keep getting .2014 m/s2 which is wrong. the corrct answer should be 2.165m/s2 but I just cant figure out how to get it. How do I solve this problem?