Some constants you may want to use... acceleration due to gravity (g) = 9.8 m/s² Coulomb's constant (k) = 8.99 x 10º Nm²/C² charge on a proton or electron 1.6 x 10-19 C Gravitational constant (G) = 6.67 x 10-1' Nm²/kg? 1. A person standing on a horizontal frictionless floor might be able to move by [a] walking [b] crawling slowly [c] throwing a shoe 2. Two charged particles are separated by a certain distance. If the charge of one particle is tripled and the distance remains the same, by what factor does the force between them change? [a] tripled [b] 9 times [c] 1/3 the force 3. A stunt person jumps from a tall building onto a large inflated pad. This is better than hitting the cement because the pad reduces the force of impact since: [a] the interaction time is reduced [c]t [b]the interaction time is increased [d]the change in velocity is increased change in velocity is decreased 4. A bowling ball traveling with a speed v collides with a ping-pong ball moving at the same speed v, but in the opposite direction. One can conclude that the change in momentum of the ping-pong ball is: [a] greater than that of the bowling ball [c] the same as that of the bowling ball [b] less than that of the bowling ball 5. The force on a wire that is in a magnetic field is directed South while the current flows Down (into the page), what is the direction of the magnetic field? [a] North [b] South [c]East [d] West [e] Up [f] Down 6. What is the direction of the force on an electron traveling West through a magnetic field directed North? [a] North [d] West [b] South [c]East [e] Up [f] Down 7. An 80 kg astronaut shoots a 5 kg ball forward in frictionless space at an alien. The ball has less mass than the astronaut. The ball will: [a] continue to move forward while the astronaut goes backward at the same speed as the ball [b] move forward but the astronaut will not change position [c] not move forward, but the astronaut will move backward [d] move forward while the astronaut goes backward at a slower speed than the ball 8. A 0.5 kg hockey puck is traveling to the left at 10 m/s. It is then hit by a stick which causes it to travel left at 10 m/s. What is the magnitude of the impulse on the hockey puck? [a] 0 kg m/s [b] 4 kg m/s [c] 1.2 kg m/s

College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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**Some constants you may want to use...**
- **Acceleration due to gravity (g):** 9.8 m/s²
- **Coulomb's constant (k):** 8.99 x 10⁹ Nm²/C²
- **Charge on a proton or electron:** 1.6 x 10⁻¹⁹ C
- **Gravitational constant (G):** 6.67 x 10⁻¹¹ Nm²/kg²

---

1. **A person standing on a horizontal frictionless floor might be able to move by:**
   - [a] walking
   - [b] crawling slowly
   - [c] throwing a shoe

2. **Two charged particles are separated by a certain distance. If the charge of one particle is tripled and the distance remains the same, by what factor does the force between them change?**
   - [a] tripled
   - [b] 9 times
   - [c] 1/3 the force

3. **A stunt person jumps from a tall building onto a large inflated pad. This is better than hitting the cement because the pad reduces the force of impact since:**
   - [a] the interaction time is reduced
   - [b] the interaction time is increased
   - [c] the change in velocity is decreased
   - [d] the change in velocity is increased

4. **A bowling ball traveling with a speed v collides with a ping-pong ball moving at the same speed v, but in the opposite direction. One can conclude that the change in momentum of the ping-pong ball is:**
   - [a] greater than that of the bowling ball
   - [b] less than that of the bowling ball
   - [c] the same as that of the bowling ball


5. **The force on a wire that is in a magnetic field is directed South while the current flows Down (into the page), what is the direction of the magnetic field?**
   - [a] North
   - [b] South
   - [c] East
   - [d] West
   - [e] Up
   - [f] Down

6. **What is the direction of the force on an electron traveling West through a magnetic field directed North?**
   - [a] North
   - [b]
Transcribed Image Text:**Some constants you may want to use...** - **Acceleration due to gravity (g):** 9.8 m/s² - **Coulomb's constant (k):** 8.99 x 10⁹ Nm²/C² - **Charge on a proton or electron:** 1.6 x 10⁻¹⁹ C - **Gravitational constant (G):** 6.67 x 10⁻¹¹ Nm²/kg² --- 1. **A person standing on a horizontal frictionless floor might be able to move by:** - [a] walking - [b] crawling slowly - [c] throwing a shoe 2. **Two charged particles are separated by a certain distance. If the charge of one particle is tripled and the distance remains the same, by what factor does the force between them change?** - [a] tripled - [b] 9 times - [c] 1/3 the force 3. **A stunt person jumps from a tall building onto a large inflated pad. This is better than hitting the cement because the pad reduces the force of impact since:** - [a] the interaction time is reduced - [b] the interaction time is increased - [c] the change in velocity is decreased - [d] the change in velocity is increased 4. **A bowling ball traveling with a speed v collides with a ping-pong ball moving at the same speed v, but in the opposite direction. One can conclude that the change in momentum of the ping-pong ball is:** - [a] greater than that of the bowling ball - [b] less than that of the bowling ball - [c] the same as that of the bowling ball 5. **The force on a wire that is in a magnetic field is directed South while the current flows Down (into the page), what is the direction of the magnetic field?** - [a] North - [b] South - [c] East - [d] West - [e] Up - [f] Down 6. **What is the direction of the force on an electron traveling West through a magnetic field directed North?** - [a] North - [b]
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