Loose Leaf For Explorations: Introduction To Astronomy
9th Edition
ISBN: 9781260432145
Author: Thomas T Arny, Stephen E Schneider Professor
Publisher: McGraw-Hill Education
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Chapter 3, Problem 1TQ
To determine
Whether it is advisable to kick a cinder block bare foot in the space.
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If an object weighs 3 x 105 N on the surface of the earth, what would its weight be at an altitude of 400 km above the surface of the earth?
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The acceleration due to gravity in the surface of the Planet Jupiter is 254 percent times that of Earth. An object has a mass of 45 kg here on Earth. What will be its weight at the surface of the Jupiter?
Chapter 3 Solutions
Loose Leaf For Explorations: Introduction To Astronomy
Ch. 3 - What is meant by inertia?Ch. 3 - (3.1) What does Newtons first law of motion tell...Ch. 3 - Explain how inertia and gravity are both involved...Ch. 3 - How does mass differ from weight?Ch. 3 - If your mass is 70 kg on Earth, what is it on the...Ch. 3 - What is Newtons law of gravity?Ch. 3 - Prob. 7QFRCh. 3 - (3.7) If you weigh 110 pounds on Earth, do you...Ch. 3 - Prob. 9QFRCh. 3 - Prob. 10QFR
Ch. 3 - Prob. 1TQCh. 3 - Prob. 2TQCh. 3 - (3.2) Is there a force of gravity between the...Ch. 3 - (3.3) Use Newtons second law of motion to explain...Ch. 3 - (3.4) How many times greater is Earths...Ch. 3 - Prob. 6TQCh. 3 - Prob. 7TQCh. 3 - Prob. 8TQCh. 3 - Prob. 9TQCh. 3 - Prob. 10TQCh. 3 - Prob. 11TQCh. 3 - (3.3) If you apply a force F to a mass m, it...Ch. 3 - Prob. 2PCh. 3 - Prob. 3PCh. 3 - Prob. 4PCh. 3 - Prob. 5PCh. 3 - (3.6) Gliese 581e is an exoplanet with a mass of...Ch. 3 - (3.7) Using the method of section 3.7, compare the...Ch. 3 - Prob. 8PCh. 3 - Prob. 9PCh. 3 - Prob. 10PCh. 3 - Prob. 11PCh. 3 - Prob. 12PCh. 3 - Prob. 13PCh. 3 - Prob. 1TYCh. 3 - Prob. 2TYCh. 3 - Prob. 3TYCh. 3 - Prob. 4TYCh. 3 - Prob. 5TYCh. 3 - Prob. 6TYCh. 3 - Prob. 7TYCh. 3 - Prob. 8TYCh. 3 - Prob. 9TY
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- A box of mass 3.0 kg slides down a rough vertical wall. The gravitational force on the box is 29.4 N . When the box reaches a speed of 2.5 m/s , you start pushing on one edge of the box at a 45∘∘ angle (use degrees in your calculations throughout this problem) with a constant force of magnitude FpFpF_p = 23.0 N , as shown in (Figure 1). There is now a frictional force between the box and the wall of magnitude 13.0 N . How fast is the box sliding 2.6 s after you started pushing on it?arrow_forwardA man whose weight is 800 N on the Earth's surface is also in a spacecraft at a height of one Earth's radius above the earth (g = 2.45 N/kg). His weight there is:arrow_forwardA small object of mass 2 kg is suspended from a string of length 2 m as shown in the figure. The object revolves with constant speed v in a honizontal circle. If 0=15°, the velocity of the object (in m/s) equals: Select one: a. 1.17 b. 0.83 c. 1.166 d. 2.03arrow_forward
- The acceleration due to gravity on the surface of Jupiter is 254 percent times that of Earth. An object has a mass of 55 kg here on Earth. What will be its weight at the surface of Jupiter?arrow_forwardThe acceleration due to gravity on the surface of Jupiter is 254% times that of the Earth. An object has a mass of 55 kg on Earth. What will be his weight at the surface of Jupiter?arrow_forwardHawks soar in search of prey and then fold their wings and drop like a rock from the sky on their victim, which in this case we’ll assume to be a vole, or field mouse. Hawks have evolved a highly aerodynamic form that minimizes drag. The hawk in our model is soaring at some height when it spots the vole and begins its dive. At that same time the vole sees the hawk and rushes as fast as its little legs will carry it (2.00 m/s) back to its burrow. The big question for the vole is: How far can it safely venture from its burrows? Work through the steps below to find the answer. a. Sketch the situation described above. Label all relevant quantities, either with a number if you know it, or as a variable. b. Find the time it takes the hawk to reach the ground if it is soaring at 125 m. c. What is the maximum distance which the vole can safely venture from its burrow in this situation? d. How much farther from its burrow can the vole venture if the hawk starts at 150. m? e. Now let’s assume…arrow_forward
- A man has a mass of 75 kg on the Earths surface. How far above the earths surface does he have to go to "lose" 10 % of his body weight?arrow_forwardChristian is making a Tyrolean traverse as shown in the figure. That is, he traverses a chasm by stringing a rope between a tree on one side of the chasm and a tree on the opposite side, 25 m away. The rope must sag sufficiently so it won't break. Assume the rope can provide a tension force of up to 26 kN before breaking, and use a "safety factor" of 10 (that is, the rope should only be required to undergo a tension force of 2.6 kN) at the center of the Tyrolean traverse. Figure 1 of 1 > Part A Determine the distance that the rope must sag if it is to be within its recommended safety range and Christian's mass is 72.0 kg Express your answer using two significant figures. x= Submit Part B T= VG| ΑΣΦ Submit Request Answer If the Tyrolean traverse is incorrectly set up so that the rope sags by only one-fourth the distance found in part A, determine the tension force in the rope. (Figure 1) Express your answer using two significant figures. —| ΑΣΦ ? Request Answer m ? Narrow_forward2.2 A uniform plate has its boundary consisting of two concentric circles of inner and outer radii p and q, respectively, as shown in the sketch below. Determine the gravitational force which the plate exerts on a particle of mass M at its centre as shown in the sketch below.arrow_forward
- A box of mass 3.0 kgkg slides down a rough vertical wall. The gravitational force on the box is 29.4 NN . When the box reaches a speed of 2.5 m/sm/s , you start pushing on one edge of the box at a 45∘∘ angle (use degrees in your calculations throughout this problem) with a constant force of magnitude FpFp = 23.0 NN , as shown in (Figure 1). There is now a frictional force between the box and the wall of magnitude 13.0 NN . How fast is the box sliding 2.8 ss after you started pushing on it? Using our simplified model, in which we know that the forces are constant (but we don't know what their magnitudes are), which, perhaps more than one, of the following motion diagrams could be a reasonable representation of the motion of the box?arrow_forwardA planet has a mass of 7.48 × 1023 kg and a radius of 2.61 × 106 m. (a) What is the acceleration due to gravity on this planet? (b)How much would a 79.2-kg person weigh on this planet?arrow_forwardIf I shot an arrow straight up into the air, it would leave my bow traveling at a rate of 140 feet per second. Assume that the arrow is so "slick", that there is no friction (or air resistance). Without gravity it would continue to travel at this speed. After 8 seconds it would have traveled 8*140 feet. But, gravity will pull it back to the earth. The gravitational pull is measured as 16t2. So the height at any time t can be measured by the function h(t) = 140t - 16t2. At what time t will the arrow reach it's maximum height?arrow_forward
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