A 2.1 meter long baseball bat travels in a direction that is parallel to its length....
A 2.1 meter long baseball bat travels in a direction that is parallel to its length. An observer at rest on the Earth measures the bat's length to be 1.5 meters. What is the speed of the baseball bat relative to the stationary observer (give your answer in terms of “c”) ?
Homework Answers
this is a question of length contraction
L = Lo*sqrt(1 - (v/c)^2)
1.5 = 2.1 * sqrt(1 - (v/c)^2)
v = 0.49c
so the speed of the baseball bat is 0.49c
Add Answer to:
A 2.1 meter long baseball bat travels in a direction that is
parallel to its length....
1. If a rod travels with a speed v 0.8 c along its length, how much...
1. If a rod travels with a speed v 0.8 c along its length, how much does it shrink? 2. Assuming that the rest radius of earth is 6,400 km and its orbital speed about the sun is 30 km, how much does earth's diameter appear to be shortened to an observer on the sun, due to earth's orbital motion? 3. A rod of length Lo moves with speed v along the horizontal direction. The rod makes and angle 0o...
A really high-speed train moves in a direction parallel to its length with a speed that...
A really high-speed train moves in a direction parallel to its length with a speed that approaches the speed of light. The height of the train (Not length), as measured by a stationary observer on the ground, A. decreases slightly. B. increases slightly. C. approaches zero. D. does not change due to the motion. E. approaches infinity.
Problem 5: A meter-stick is moving with a speed of 0.7 c relative to the Earth....
Problem 5: A meter-stick is moving with a speed of 0.7 c relative to the Earth. What is the stick's length as measured by an observer on Earth if the stick is parallel to its velocity v? What is the stick's length as measured by the observer on Earth if the stick is making an angle of 50° with its velocity v?
A neutron travels to the right at a velocity of 0.63 c relative to an observer...
A neutron travels to the right at a velocity of 0.63 c relative to an observer at rest on the surface of the Earth (sometime called the “Laboratory Frame”). An alpha particle travels to the right at a velocity of 0.75 c relative to the moving neutron. What is the velocity of the alpha particle relative to the observer at rest on the surface of the Earth (give your answer in terms of “c”)? Make sure that you draw a...
a major leaguer hits a baseball so that it leaves the bat at a speed of...
a major leaguer hits a baseball so that it leaves the bat at a speed of 28.5m/s at an angle of 35.9 degrees above the horizontal. you can ignore air resistance. A) at what two times in the baseball at a height of 10.6m above the point at which it left the bat? express your answer in seconds. B) calculate the horizontal component of the baseball’s velocity at an earlier time calculated in A. express your answer in meter per...
A 4-meter plank weighing 7 kg is lying on a dock with 3.14 meters of its...
A 4-meter plank weighing 7 kg is lying on a dock with 3.14 meters of its length on the dock, and the rest of its length extending off the dock. If a child weighing 69 kg walks out onto the part of the plank extending off the dock, what is the maximum distance in meters that the child can walk on the plank from the edge of the dock before he falls into the water? A baseball pitcher throws a...
27.11 A meter stick moves past you at great speed.Its motion relative to you is parallel...
27.11 A meter stick moves past you at great speed.Its motion relative to you is parallel to its long axis. If you measure the length of the moving meter stick to be 1.90ft for example, by comparing it with a ruler that is at rest relative to you, at what speed is the meter stick moving relative to you?
6. You're swinging a baseball bat around, get- ting ready for your shot at the ball....
6. You're swinging a baseball bat around, get- ting ready for your shot at the ball. If you swing the bat in a half circle in 1.0 sec, what is its angular velocity? · A satellite is orbiting the Earth at 8.7 × 10 radians/sec. How long will it take to circle the entire world? 8. A merry-go-round is spinning around at 2.1 radians/sec. How long will it take to go in a complete circle? 9. Your model globe is...
A meter stick moves parallel to its axis with speed 0.85c relative to you. How long...
A meter stick moves parallel to its axis with speed 0.85c relative to you. How long does it take for the stick to pass you?
Relative Math Your friend flies from Los Angeles to New York. He determines the distance using the tried-and-true d vt....
Relative Math Your friend flies from Los Angeles to New York. He determines the distance using the tried-and-true d vt. You and your assistants on the ground surveying equipment. also measure the distance, using meter sticks and a. Who, if anyone, measures the proper length? b. Who, if anyone, measures the shorter distance? A rocket travels at speed 0.5c relative to the earth. a. The rocket shoots a bullet in the forward direction at speed 0.5c relative to the rocket....
1. If a rod travels with a speed v 0.8 c along its length, how much does it shrink? 2. Assuming that the rest radius of earth is 6,400 km and its orbital speed about the sun is 30 km, how much does earth's diameter appear to be shortened to an observer on the sun, due to earth's orbital motion? 3. A rod of length Lo moves with speed v along the horizontal direction. The rod makes and angle 0o...
Problem 5: A meter-stick is moving with a speed of 0.7 c relative to the Earth. What is the stick's length as measured by an observer on Earth if the stick is parallel to its velocity v? What is the stick's length as measured by the observer on Earth if the stick is making an angle of 50° with its velocity v?
6. You're swinging a baseball bat around, get- ting ready for your shot at the ball. If you swing the bat in a half circle in 1.0 sec, what is its angular velocity? · A satellite is orbiting the Earth at 8.7 × 10 radians/sec. How long will it take to circle the entire world? 8. A merry-go-round is spinning around at 2.1 radians/sec. How long will it take to go in a complete circle? 9. Your model globe is...
Relative Math Your friend flies from Los Angeles to New York. He determines the distance using the tried-and-true d vt. You and your assistants on the ground surveying equipment. also measure the distance, using meter sticks and a. Who, if anyone, measures the proper length? b. Who, if anyone, measures the shorter distance? A rocket travels at speed 0.5c relative to the earth. a. The rocket shoots a bullet in the forward direction at speed 0.5c relative to the rocket....
Most questions answered within 3 hours.
-
1. Which region has taken the lead in the world of
e-waste handling?
a) European Union...
asked 7 seconds ago -
If you’re standing at the bottom of a hill and asked to evaluate
it while being...
asked 6 minutes ago -
A 8.15- g bullet from a 9-mm pistol has a velocity of 366.0 m/s.
It strikes...
asked 1 hour ago -
The outstanding bonds of Alpha Extracts have a yield to maturity
of 7.4 percent and a...
asked 1 hour ago -
The Problem: The Case of the Harmonizing Vacations
Your CEO is exploring partnering with a European...
asked 2 hours ago -
A chemical equation is balanced by adding coefficients in front
of some formulas so that the...
asked 2 hours ago -
From the literature (reference your sources): What are the
lattice parameters of calcite and aragonite? Why...
asked 3 hours ago -
Your system is rejecting the question am asking which is
preceded by a case study. It...
asked 3 hours ago -
3. On January 2, 2000, Larry creates a trust with himself as
trustee. Larry as trustee...
asked 3 hours ago -
A member of the volleyball team spikes the ball. During this
process, she changes the velocity...
asked 3 hours ago -
Are adult gamers less likely to use a gaming console (Xbox,
PlayStation, Wii, etc...) than teen...
asked 4 hours ago -
The University of
Texas recently reported that 43% of college students aged 18-24
would spend their...
asked 4 hours ago