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Sasha
Questions (250)
the first excited state of the nucleus of uranium-235 is 0.051 MeV above the ground state. what is the wavelength of the photon
2 answers
1,292 views
1.Which option (front-end solutions, double bunking, or back-end solutions) do you feel is the most effective in our
1 answer
438 views
Find the points of inflection of the curve below. Round the answers to three decimal places. (Hint: All three are in a straight
1 answer
528 views
Friction provides the force needed for a car to travel around a flat, circular race track. What is the maximum speed at which a
2 answers
1,522 views
How many ways can 3 students be arranged in three chairs? I'm not really sure but I think that the answer will be 9 (nine), is
1 answer
627 views
I just need help with part c. I know stopping takes longer but we have to explain why.
A student stands on a bathroom scale in an
0 answers
722 views
You are driving a 2590.0 kg car at a constant speed of 14.0 m/s along an icy, but straight, level road. As you approach an
0 answers
1,012 views
If you use a horizontal force of 31.0 N to slide a 10.5 kg wooden crate across a floor at a constant velocity, what is the
0 answers
887 views
Suppose a 68-kg boy and a 40-kg girl use a massless rope in a tug-of-war on an icy, resistance-free surface. If the acceleration
3 answers
997 views
As a baseball is being caught, its speed goes from 27.5 m/s to 0.0 m/s in about 0.0050 s. The mass of the baseball is 0.150 kg.
(
2 answers
832 views
1. Three particles with charges of +11 mC each are placed at the vertices of an equilateral triangle with sides of 15.0 cm. What
2 answers
954 views
I found the first three parts of the question but I can't figure out part d.
The instruments attached to a weather balloon in the
4 answers
1,200 views
Suppose a 68-kg boy and a 40-kg girl use a massless rope in a tug-of-war on an icy, resistance-free surface. If the acceleration
5 answers
1,620 views
why should spare petrol for cars be carried in a metal rather than plastic container?
Explain why the inside of the car is a safe
1 answer
444 views
charges of +1.000 C are located at the corners of a 45-45- right triangle which has a hypotenuse that is 1.414 m long. Determine
1 answer
611 views
the force between two charges is 20.0 N. if one charge is doubled, the other is tripled, and the distance between them is
1 answer
1,150 views
A football coach sits on a sled while two of his players build their strength by dragging the sled across the field with ropes.
2 answers
1,890 views
A 2.6 N block is at rest on a horizontal surface. A 0.9 N upward force is applied to the block by means of attached vertical
1 answer
645 views
A football coach sits on a sled while two of his players build their strength by dragging the sled across the field with ropes.
2 answers
1,163 views
A football coach sits on a sled while two of his players build their strength by dragging the sled across the field with ropes.
2 answers
5,212 views
(a) Suppose you throw a football. At some instant, when the ball is in contact with your hand, your hand exerts a force of 100 N
2 answers
1,022 views
A 2.6 N block is at rest on a horizontal surface. A 0.9 N upward force is applied to the block by means of attached vertical
0 answers
543 views
to what extent was Hitler's rise to power due to personal appeal and ability?
1 answer
1,013 views
a 145g baseball is dropped from a tree 13.0m above the ground. with what is the velocity of the baseball at the ground after it
1 answer
1,262 views
21.7 kg child descends a slide 3.5 m high and reaches the bottom with a speed of 2.2 m/s How many joules of thermal energy are
2 answers
6,351 views
What would be a good thesis statement for my intro paragraph?
Effect and Evolution of African Americans in Minnesota Intro The
1 answer
800 views
A 3800 kg open railroad car coasts along with a constant speed of 8.60 m/s on a level track. Snow begins to fall vertically and
3 answers
5,799 views
A sports car of mass 950kg (including the driver) crosses the rounded top of a hill (radius = 95m) at 22m/s. Determine
a) the
1 answer
5,057 views
a .45kg ball, attached to the end of a horizontal cord, is rotated in a circle of radius 1.3m on a frictionless horizontal
2 answers
4,923 views
a child sitting 1.10 m from the center of a merry go round moves with a speed of 1.25 m/s. calculate the centripetal
3 answers
16,272 views
Astronauts who spend long periods in outer space could be adversely affected by weightlessness. One way to simulate gravity is
2 answers
1,063 views
Highway safety engineers build soft barriers such as the one shown in Figure 3-21, so that cars hitting them will slow down at a
2 answers
1,576 views
A race car can be slowed with a constant acceleration of -14 m/s2.
(a) If the car is going 44 m/s, how many meters will it travel
2 answers
919 views
calculate the force of Earth's gravity on a spacecraft 12,800 km (2 Earth radii) above Earth's surface if its mass is 1350 kg.
i
4 answers
3,255 views
When will your apparent weight be greatest, as measured by a a scale in a moving elevator; when the elevators: (a) accel.
8 answers
3,034 views
a 75-kg petty theif wants to escape from a third story window. unfortunately a makeshift rope of sheets tied together can
2 answers
3,089 views
Round to the nearest ten thousand.
Add and compare the answers. 16,250 + 58,351 = round first
1 answer
512 views
What are the merits of multiple perspectives when examining human behavior? Why is it important? Provide examples of the impact
6 answers
756 views
What are the merits of multiple perspectives when examining human behavior? Why is it important? Provide examples of the impact
1 answer
720 views
What are the merits of multiple perspectives when examining human behavior? Why is it important? Provide examples of the impact
1 answer
773 views
Edna and Nancy leave the house of a common friend at the same time and walk for 4 hours. Edna walks due east at the average rate
5 answers
1,170 views
What is an easy wway to remember Japanese other than flash cards?
1 answer
502 views
Hello
I have an exam tommorrow and my question is : What is the difference between the types of the data base text and number in
0 answers
801 views
Hello
My exams are coming I'm a straight A student .. the problem however is : My textbooks , teacher and every piece of work
0 answers
1,058 views
Hello
My exams are coming I'm a straight A student .. the problem however is : My textbooks , teacher and every piece of work
0 answers
552 views
Can you please explain and provide me links for the rock structure of the appalachian mountains? I'm almost done my power point
1 answer
558 views
I found some links for the geological history for the appalachian mountains BUT it confuses me. Can you please simplify the
1 answer
700 views
I need to do a power point presentation on the Appalachian mountains. I need to find the geological history,rock
1 answer
606 views
So unless I become a high-risk day-trader, there really is no way for me to make a living just investing in the stock market?
So
0 answers
669 views
Are there people who invest in the stock market full time for a living? In order words, are there people who make thousands of
0 answers
944 views
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