You can run 9.0 m/s , 20% faster than your brother.
How much head start should you give him in order to have a tie race over 70 m ?
Express your answer to two significant figures and include the appropriate units.
You can run 9.0 m/s , 20% faster than your brother. How much head start should...
A 3000-m-high mountain is located on the equator. How much faster does a climber on top of the mountain move than a surfer at a nearby beach? The earth's radius is 6400 km. Please use the numbers that are provided in the question so that I can see what I am doing incorrectly. Thank you very much in advance. Problem 4.30 Part A A 3000-m-high mountain is located on the equator. How much faster does a climber on top of...
A 0.060-kg tennis ball, moving with a speed of 5.50 m/s , has a head-on collision with a 0.080-kg ball initially moving in the same direction at a speed of 3.54 m/s . Assume that the collision is perfectly elastic. Part A Determine the speed of the 0.060-kg ball after the collision. Express your answer to two significant figures and include the appropriate units. Part A: Part A Determine the speed of the 0.060-kg ball after the collision. Express your...
One study suggests that a brain concussion can occur if a person's head is subjected to an acceleration as small as 60g, where g is the acceleration of gravity. Part A If the mass of the person's head is 4.6 kg, what is the magnitude of the forco? Express your answer to two significant figures and include appropriate units. ? Value Units Submit Request Answer Part B If the impulse delivered to the person's head is 21 kg. m/s, over...
A 53 kg sprinter, starting from rest, runs a 60 m long race in 7.2 s with a constant acceleration. Part A How much work does the sprinter do during the first 2.5 s of the race? Express your answer to three significant figures and include the appropriate units. Part B What is the sprinter's average power output during the first 2.5 s of the race? Express your answer to three significant figures and include the appropriate units. Part C How...
A 0.450-kg ice puck, moving east with a speed of 5.16 m/s , has a head-on collision with a 0.950-kg puck initially at rest. Assume that the collision is perfectly elastic. What is the speed of the 0.450-kg puck after the collision? Express your answer to three significant figures and include the appropriate units. What is the speed of the 0.950-kg puck after the collision? Express your answer to three significant figures and include the appropriate units.
in a stunt three people jump off a platform and fall 9.0 m onto a large air bag. A fourth person at the other end of the air bag the "flier" is launched 20 m vertically into the air. assume all four people have a mass of 73 kg. Part A What fraction of the mechanical energy of the three jumpers is transferred to the mechanical energy of the flier? Express your answer to two significant figures. ΡΟΙ ΑΣφ ?...
Part A How much energy can be obtained from conversion of 1.8 gram of mass? Express your answer to two significant figures and include the appropriate units. E = SubmitMy AnswersGive Up Part B How much mass could this energy raise to a height of 1.5 km above the Earth's surface? Express your answer to two significant figures and include the appropriate units. m =
A heating element in a toaster dissipates 800 W when run at 110 V. How much charge passes through the heating element in 1 minute? Please show all of your work. Express your answer to two significant figures and include the appropriate units.
How much work is required to stop an electron (m 9.11 x 10-31 kg) which is moving with a speed of 1.50x108 m/s? Express your answer to three significant figures and include the appropriate units. ? W = Value Units Submit Request Answer How much work is required to stop an electron (m 9.11 x 10-31 kg) which is moving with a speed of 1.50x108 m/s? Express your answer to three significant figures and include the appropriate units. ? W...
A 0.060-kg tennis ball, moving with a speed of 5.84 m/s , has a head-on collision with a 0.090-kg ball initially moving in the same direction at a speed of 3.88 m/s . Assume that the collision is perfectly elastic. A. Determine the speed of the 0.060-kg ball after the collision. (Express the answer to two significant figures and include the appropriate units.) B. Determine the direction of the velocity of the 0.060-kg ball after the collision. C. Determine the...