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Questions (57)
a student used a claw hammer to remove nails from a piece of wood to prepare to paint. using the formula for mechanical
1 answer
167 views
Match the following terms to their correct answer. Column A 1. 1 Joule: 1 Joule 2. Work formula: Work formula 3. Pulley: Pulley
1 answer
140 views
Mechanical advantage is calculated by using the formula: a Length of Slope (L) / Height of slope (H) b Height of Slope (H) /
1 answer
81 views
A class two lever is where the fulcrum is located at one end and the force applied is at the opposite end. True False
1 answer
66 views
In order to do work on an object but use less force, one must apply the force for a ________ distance. a longer b shorter
1 answer
99 views
If the midpoint of line segment XY is at (2, 8) and point X is at (10, 4) , what is the ordered pair of point Y?(1 point)
1 answer
125 views
What is the distance between points J and K if J is at (−3, 2) and K is at (1, −6) .(1 point) Responses 45–√ 4 square
1 answer
68 views
What is the midpoint between point A and B if point A is at (7, −4) and point B is at (−9, 5) .(1 point) Responses (8, 12)
1 answer
61 views
Which equation has a graph perpendicular to the graph of 5x=20y−12 ?
(1 point) Responses Y= 1/4 x + 3/5 Y = -1/4 x - 5/3 Y =
1 answer
70 views
Max completed a 10 mile run in 1 hour 20 minutes. Which dimensional analysis would you use to find her average speed in miles
1 answer
208 views
Given the formula A=2πr+h
, solve for r. Responses r=A+h2π r is equal to the fraction with numerator cap A plus h and
1 answer
142 views
Match the pH to its description.
Column A 1. pH above 7: pH above 7 2. pH below 7: pH below 7 3. pH of 7: pH of 7 Column B
1 answer
245 views
Harold is collecting Nike Jordans. He currently has 23 pairs and plans to add 3 new pairs to his collection each month. At this
1 answer
209 views
Use the following setup and given equation to find the solution:
1st integer = x 2nd integer = x + 2 3rd integer = x + 4 The sum
1 answer
126 views
1 - Which of the following best describes the term sustainable development?
development of future businesses improvements in
12 answers
3,719 views
these are the ages of the starting players on Aaron's basketball team what is the average (mean) age of the team
Jon - 8 Jim - 9
4 answers
2,981 views
Trey is ordering one sandwich one fruit and one drink for lunch the sandwich fruit and drink choices are shown
Sandwich - turkey
2 answers
2,773 views
what is a sigma bond
1 answer
413 views
a 111.4mg ore sample containing iro with acid , filtered and diluted to 200.0ml in volumetric flask. a 1000ml aliquot is
2 answers
615 views
The mass of an atom can be determined by ionizing it and accelerating it through a known electric field followed by a known
0 answers
811 views
Two straight and parallel wires of length 1.0 m carry a current — the first carries a current of 9.0 A while the other wire
1 answer
860 views
Two straight conductors are 15 cm apart. If one conductor has a current of 12 A and the other has a current of 18 A, calculate
0 answers
666 views
2.00 m long straight copper wire has a current of 8.0 A in it as it passes through a magnetic field. The magnitude of the force
1 answer
831 views
Three identical point charges A, B, and C are located in the shape of an equilateral triangle with sides of length 15 cm. What
0 answers
1,074 views
Energy & Momentum Calculations Assessment
Answer the following questions. A 1.0 kg puck sliding at 15 m/s along some horizontal
1 answer
1,162 views
An electron reaches a speed of 3.0 × 107 m/s when released beside the negative plate within a parallel plate accelerator with a
0 answers
829 views
The charge on two pith balls can be calculated by knowing their masses and observing the angle of separation between the balls.
I
0 answers
1,026 views
Using that velocity, and the information from above, compare the total momentum just before the collision with the total
0 answers
700 views
Using the data from Step #3 and the velocity found above, compare the gravitational potential energy of the ball at the top of
1 answer
880 views
Calculate the average velocity for a remote controlled vehicle that starts with a speed of 1.0 m/s [forward] and then
3 answers
1,138 views
How much additional energy is needed to fire a 7.2 × 10^2 kg weather monitor on the earth’s surface to a height of 120 km
1 answer
1,336 views
The gravitational field strength of an unknown planet is 15.5 N/kg on its surface. Calculate the value of g if the planets mass
1 answer
962 views
Calculate the mass of Jupiter knowing that a person who weighs 490 N on the earth's surface would weight 1293 N on the surface
1 answer
1,437 views
Calculate the mass of Jupiter knowing that a person who weighs 490 N on the earth's surface would weight 1293 N on the surface
1 answer
690 views
What is the minimum speed required to simulate artificial gravity?
1 answer
618 views
A 0.50 kg cue ball makes a glancing blow to a stationary 0.50 kg billiard ball. After the collision the cue ball deflects with a
2 answers
3,131 views
A bullet of mass 45 g is fired at a speed of 220 m/s into a 5.0 kg sandbag hanging from a string from the ceiling. The sandbag
2 answers
1,130 views
A 0.50 kg cue ball makes a glancing blow to a stationary 0.50 kg billiard ball. After the collision the cue ball deflects with a
1 answer
934 views
alculate the final speed of a 1500 kg roller coaster if it has an initial speed of 16 m/s but reduces its elevation by 8.6 m by
3 answers
1,125 views
During the Olympic ice competition, Boris (m = 75 kg) glides at 1.8 m/s to a stationary Juliette (52 kg) and hangs on. How far
1 answer
931 views
A 1.0 kg puck sliding at 15 m/s along some horizontal frictionless ice strikes and compresses a horizontal spring attached to
4 answers
1,185 views
A collision in Phystown is being analyzed by the O.P.P. accident analysis team. A 1000 kg Toyota known to be moving at 65 km/h
2 answers
942 views
A horizontal spring with spring constant of 120 N/m is compressed a distance of 0.25 m and placed in front of a ramp angled at
1 answer
1,556 views
A 2.2 kg bowling ball is dropped vertically from a height of 1.5 m onto a long compression spring (k = 150 N/m) placed
2 answers
1,498 views
A 2.0 kg mass is fastened to a spring with force constant of 45 N/m. The mass is held motionless by a student at a position 15
3 answers
1,049 views
A 55 kg skateboarder accelerates down a ramp and hits the pavement moving at 5.6 m/s. If the pavement has a coefficient of
1 answer
1,657 views
In a rescue scene during the 911 crisis, a helicopter of mass 6000 kg accelerates upwards at the rate of 0.50 m/s2 while lifting
1 answer
2,184 views
A ball on the end of a string is moving in a horizontal circle. If the centripetal acceleration of the ball is 12 m/s2, while it
1 answer
811 views
A fisherman who lives in a high rise apartment building in Toronto, weighs a fish on a spring scale and records a 11.2 N
1 answer
1,926 views
Sarah is pushing a 10 kg buggy and exerts a force of 100 N along the handle. If the handle is elevated at 37° to the
1 answer
1,031 views
Calculate the average velocity for a remote controlled vehicle that starts with a speed of 1.0 m/s [forward] and then
2 answers
757 views
The above graph represents the motion of two vehicles: A and B
What is the acceleration of vehicle A during the first 5.0 s?
2 answers
1,105 views
An airplane requires 420 m of runway to take off from an airstrip. If the plane starts from rest and it takes 32 s to lift off,
1 answer
1,769 views
Jack is driving with a pail of water along a straight pathway at a steady 25 m/s when he passes Jill who is parked in her
1 answer
897 views
A lifeguard who can swim at 1.2 m/s in still water wants to reach a dock positioned perpendicularly directly across a 550 m wide
1 answer
1,698 views
A card is drawn at random from an ordinary deck of playing cards. Find the following odds.
A. Odds in favor of drawing a 5,6,7 B.
1 answer
906 views
How is the expected outcome determined in a discrete distribution?
I do not understand this question. Could someone please help
1 answer
481 views
