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luma
Questions (32)
identify the best way to display statistics in a research report
2 answers
804 views
When a load of 1(10)^6 N is placed on a ship, the ship only sinks 2.5 cm into the ocean (sea water). Estimate the
1 answer
959 views
Styrofoam has a density of 300 kg/m^3. What is the maximum mass that can hang without sinking from a 50 cm diameter styrofoam
2 answers
5,663 views
A 10 cm by 10 cm by 10 cm wood block with a density of 700 kg/m^3 floats in water.
a. What is the distance from the top of the
2 answers
8,570 views
A cargo barge is loaded in a saltwater harbor for a trip up a freshwater river. If the rectangular barge is 3 m by 20 m and sits
2 answers
4,861 views
Two cars, one of mass 1300 kg, and the second of mass 2200 kg, are moving at right angles to each other when they collide and
1 answer
1,201 views
Two ice skaters approach each other at right
angles. Skater A has a mass of 30.7 kg and travels in the +x direction at 2.64 m/s.
1 answer
1,488 views
A(n) 2864 kg van runs into the back of a(n)
856 kg compact car at rest. They move of together at 7.5 m/s. Assuming no friction
1 answer
524 views
A rifle with a weight of 17 N fires a 3.6 g bullet
with a speed of 231 m/s. The acceleration of gravity is 9.81 m/s 2 . Find the
0 answers
611 views
High-speed stroboscopic photographs show
that the head of a 192 g golf club is traveling at 44.4 m/s just before it strikes a
1 answer
627 views
A 13 g toy car moving to the right at 22 cm/s
has a head-on nearly elastic collision with a 22 g toy car moving in the opposite
2 answers
2,058 views
A 24.9 g marble sliding to the right at 22.0
cm/s overtakes and collides elastically with a 13.2 g marble moving in the same
1 answer
861 views
If a 696 N man holds the rifle firmly against
his shoulder, find the recoil speed of man and rifle. Answer in units of m/s.
1 answer
969 views
Two carts with masses of 13.2 kg and 3.0 kg
move in opposite directions on a frictionless horizontal track with speeds of 6.8 m/s
1 answer
1,164 views
A block of mass 0.941 kg is kept at rest as i compresses a horizontal mass-less spring (K=87.5 N/m) by 9.91 cm. As the block is
1 answer
657 views
A 72 kg man jumps fro a window 1.5 m above a sidewalk.
The acceleration of gravity is 9.81 m/s^2. a) what is his speed just
1 answer
1,565 views
An archer pulls her bowstring back 0.488 m by extending a force that increases uniformly from zero to 251 N.
What is the
1 answer
626 views
An archer pulls her bowstring back 0.488 m by extending a force that increases uniformly from zero to 251 N.
What is the
1 answer
879 views
On a frozen pond, a 10 kg sled is given a kick that imparts to it an initial speed of 6.2 m/s. The coefficient of kinetic
1 answer
4,134 views
A 12 g bullet is accelerated in a rifle barrel 69.2 cm long to a speed of 864 m/s.
Use the work-energy theorem to find the
0 answers
645 views
A 2.25 kg block initially at rest is pulled to the right along a horizontal, frictionless surface by a constant, horizontal
1 answer
630 views
find the answer of the set for the inequality −2 ≤ 1 − (2 + 4x) < 3?
1 answer
494 views
A block is at rest on the incline shown in the figure. The coefficients of static and kinetic friction are us=0.84 and uk=0.71,
1 answer
1,043 views
At the beginning of a new school term, a student moves a box of books by attaching a rope to the box and pulling with a force of
1 answer
608 views
A student stands on a bathroom scale in an elevator at rest on the 64th floor of a building. The scale reads 840 N. As the
1 answer
1,571 views
A girl coasts down a hill on a sled, reaching level ground at the bottom with a speed of 6.6 m/s. The coefficient of kinetic
0 answers
676 views
A box is dropped onto a conveyor belt moving at 1.9 m/s.
The acceleration of gravity is 9.8 m/s^2. If the coefficient of friction
0 answers
932 views
A boat moves through the water with two forces acting on it. One is a 2123 N forward push by the motor on the propeller, and the
1 answer
1,224 views
A motorist traveling at 18 m/s encounters a deer in the road 42m ahead.
If the maximum acceleration the vehicle's brakes are
2 answers
6,239 views
Another scheme to catch the roadrunner has failed. A safe falls from rest the top of a 30.2 m high cliff toward Wiley Coyote,
3 answers
2,035 views
A ball is thrown upward. What is its time interval between the release of he ball and the time it reaches its maximum height?
1 answer
1,535 views
the tallest volcano in the solar system I the 23 km tall Martian volcano, Olympus Mons. An astronaut drops a ball off the rim of
0 answers
588 views
Answers (7)
Sorry late reply, and thanks
100% Emma thanks
Matt you are correct just make sure that if you are in connexus just take out number three and number 6 is c
no sorry Katie pickle but I got 80% so number 2 is not B it's A
actually number 9 is B
Jazzy is not correct 2/4 if you are in 6 grade connexus do KQA
C B C C C 100% I got it so correct
