Ask a New Question
Search
Questions and answers by
olga
Questions (33)
Evaluate the integral.
from 1 to 5 (ln(x))^2/x^3 dx.
1 answer
512 views
3(x+4)-5= n is 9
1 answer
252 views
The function defined below satisfies Rolle's Theorem on the given interval. Find the value of c in the interval (0,1) where
1 answer
632 views
The function defined below satisfies Rolle's Theorem on the given interval. Find the value of c in the interval (-3, -2) where
4 answers
584 views
The function defined below satisfies the Mean Value Theorem on the given interval. Find the value of c in the interval (1, 2)
1 answer
922 views
Determine the linear approximation of 21/2. Express your answer as a reduced fraction in the form a/b.
0 answers
502 views
The measurement of the side of a square is found to be 12 cm with a possible error of 0.05 cm. Use differentials to estimate the
1 answer
1,062 views
Which of the following is the linear approximation formula, L(x), that estimates values of y = ln(x) + 1 for values of x near 1?
1 answer
423 views
A truck driver traveled at an average speed of 58 miles per hour on a 200-mile trip to pick up a load of freight. On the return
1 answer
590 views
Nitrogen and hydrogen gases are combined at high temperatures and pressures to produce ammonia, NH3. If 104.6 g of N2 are
1 answer
1,409 views
If you were to separate all of the electrons and protons in 1 g (0.001 kg) of matter, you’d have about 96,000 C of positive
4 answers
2,523 views
You remove two socks from a hot dryer and find that they repel with forces of 0.003 N when they’re 4 cm apart. If they have
0 answers
757 views
If a burning log is a black object with a surface area of 0.35 m2 and a temperature of 800 ¢ªC, how much power does it emit as
0 answers
1,079 views
As you walked on the moon, the earth’s gravity would still pull on you weakly and you would still have an earth weight. How
3 answers
2,071 views
If an 75-kg baseball pitcher wearing frictionless roller skates picks up a 0.145-kg baseball and pitches it toward the south at
1 answer
4,343 views
If you and a friend 10 m away each have masses of 84 kg, how much gravitational force are you exerting on your friend?
1 answer
716 views
which suffix means pertaining to conditions present at birth
6 answers
719 views
When you put water in a kitchen blender, it begins to travel in a 7-cm-radius circle at a speed of 1 m/s. How quickly is the
1 answer
1,494 views
Engineers are trying to create artificial "gravity" in a ringshaped space station by spinning it like a centrifuge. The ring is
1 answer
1,162 views
Your new designer chair has an S-shaped tubular metal frame that behaves just like a spring. When your friend, who weighs 580 N,
3 answers
3,184 views
For a sample with a mean of M 45, a score of 59 corresponds to z 2.00. What is the sample standard deviation?
0 answers
430 views
A tricycle releases 60 J of gravitational potential energy while rolling 0.59 m directly downhill along a ramp. What is the
0 answers
653 views
If you sit in a good swivel chair with your feet off the floor, the chair will turn slightly as you move about but will
1 answer
848 views
Your car is broken, so you’re pushing it. If your car has a mass of 868 kg, how much momentum does it have when it’s moving
1 answer
721 views
Some special vehicles have spinning disks (flywheels) to store energy while they roll downhill. They use that stored energy to
1 answer
2,077 views
When your car is moving at 3.33 m/s and car has a mass of 860 kg, how much translational kinetic energy does it have?
1 answer
819 views
The earth exerts a downward force of 850 N on a veteran astronaut as he works outside the space shuttle. What force (if any)
1 answer
1,070 views
You’re sanding a table. You must exert a force of 23 N on the sandpaper to keep it moving steadily across the table’s
2 answers
2,511 views
You’re using a wedge to split a log. You are hitting the wedge with a large hammer to drive it into the log. It takes a force
0 answers
1,043 views
The builders of the pyramids used a long ramp to lift 20000-kg (20-ton) blocks. What is the gravitational potential energy of
1 answer
3,026 views
A sprinter can reach a speed of 12 m/s in 0.96 s. If the sprinter’s acceleration is constant during that time, what is the
1 answer
1,292 views
If your car accelerates from rest at a steady rate of 4 m/s2, how soon will it reach 81 km/h (50.3 mph or 22.5 m/s)?
2 answers
466 views
If your car has a mass of 770 kg, how much force is required to accelerate it forward at 4.98 m/s2?
1 answer
892 views
Answers (6)
I need your help please
r=100 perimeter 2pi r = 2x3.14x100 = 628 m 4.5 times a) 4.5 x 628 = 2826 b) 628/2 = 314
600/9.8 = 61.2 kg
Ten
ical,iac,ic,ial
29.2m/s= t*.40m/s^2+0 t=29.2m/s/.40m/s^2 t=73s
