7 and 10? 7. If you accelerate from rest 1 m/s each second for an hour,...
A 15000 kg car accelerate from 15 to 13 m/s in 5.0 second. How much work is done by the car? A 65 kg student dives off a 4.0 m board into a swimming pool. a) what is the kinetic energy of the student upon entering the water? b) what is the speed of the student upon entering the water?
A) Starting from rest, you accelerate at 6.0 m/s/s for 5 seconds. You then travel at constant speed for 10 seconds. What is the constant velocity you are moving at after 5 seconds? B) Starting from rest, you accelerate at 6.0 m/s/s for 5 seconds. You then travel at constant speed for 10 seconds. How far did you travel over the 15 seconds?
On a freeway entrance ramp, you accelerate your 1200-kg car from 5 m/s to 25 m/s over 627 m. Having an open lane, you continue to accelerate at the same constant rate for another 500 m. What is your final speed in m/s? Use one decimal place in your answer.
A) On Earth (a = 10 m/s/s) you throw a ball downward from the top of a 75 m cliff. The ball takes 3 seconds to strike the ground. How fast was the ball going when you released it? B) A sports car goes racing down the street and skids to a stop. You measure the length of the skid to be 50 m. This car's brakes give it a 4 m/s/s stopping acceleration. How fast was the car going...
7. The nearest star is 4.1 x 1016 m away. Suppose you had a spaceship that could accelerate from rest at 10 m/s? for half a year, then continues at constant speed. How long would it take to reach the nearest star? Use 1 year 365 days, 24 hours -1 day, 60 minutes 1 hour, 60 seconds 1 minute. も. 15768111 vA: at 2 1.24 16 15 구 68 oooo 8. A roofer on the ground throws a hammer to...
Can you please answer the questions from chapter 3 review problems (pg. 90-91)questions 2,4,8,10,12. chapter 4 review problems 2,4,6,8,10,12,16 (pg121) chapter 5 review problems 2,4,6,12,14 (pg.141).Chapter3-Question2-find the x- and y- components of vector R, which has a length of 10.0 cm at 60 degrees. Question4-Vector R has a length of 9.00cm at 240.0 degrees. Find its x-and y components. Question8-A hiker is plotting his course on a map with a scale of 1.00cm=3.00km. If the hiker walks 2.50 cm north,...
please answer all questions
DO 4 Out 01 . Only 4 will be graded. Cross out the one you don't do. +10 C moves at 20 m/s in the LA particle with charge positive r-direction (see diagram). There is a magnetic field of L9 x10 T out of the page. What is the force on the particle? (Give magnitude and direction!) 引0(20) (1 AXIO-3 TO F = 0.38 -regohie in the ydirection The subsequent motion of this particle is a...