Physics Force & Laws Of Motion Level: Misc Level
With an upward speed of 12.5 m/s, the elevators in Yokohama Landmark Tower in Japan are among the fastest in the world. Suppose a passenger with a mass of 70.0 kg enters one of these elevators. The elevator goes up, reaching full speed in 4.0 s. Calculate the net force that is applied to the passenger during the elevator's acceleration.
Physics Force & Laws Of Motion Level: Misc Level
The record for the smallest dog in the world belongs to a terrier who had a mass of only 113 g.Suppose this dog runs to the right with a speed of 2.00 m/s when it suddenly sees a mouse.The dog becomes scared and uses its paws to bring itself to rest in 0.80 s. what is the force required to stop the dog? what is the dog,s stopping distance?
Physics Force & Laws Of Motion Level: Misc Level
The momentum of the system after the push is:
Physics Force & Laws Of Motion Level: Misc Level
The momentum of the system before the push is:
The momentum of the system before a push is zero
Physics Force & Laws Of Motion Level: Misc Level
How do the sums of the momenta of the balls before and after collision compare?
Physics Force & Laws Of Motion Level: Misc Level
[Continued from problem 5908] How do the impulses received by both balls compare?
Physics Force & Laws Of Motion Level: Misc Level
How does the force that ball A exerts on ball B compare to the force that ball B exerts on ball A?
Mathematics Probability Level: Misc Level
A palindrome is a number that reads the same forward at it does backward.If a digit integer is selected at random, what is the probability that it will be a 5 digit palindrome
Mathematics Probability Level: Misc Level
There are 4 bananas , 5 applees and 6 oranges in a box.In how many ways can 4 fruits be selected so that there will be at least one of each kind of fruit in the selection?
Mathematics Probability Level: Misc Level
items are withdrawn at random from a box containing 7 pencils and 5 pens. What is the probability that the items selected are 2 pencils and 1 pen?
Mathematics Probability Level: Misc Level
A six-sided die with the first six prime numbers on the faces is rolled 4 times. What is the probability that an even number comes up on the top face at least once?
Mathematics Probability Level: Misc Level
In how many ways can 9 identical apples be partitioned into two identical baskets
Mathematics Probability Level: Misc Level
In a certain experiment, there is a 0.3 probability that any weighing machine used is in error by more that 10 grams. If 3 weighing machines are used, what is the probability that at least one of them is not in error by more than 10 grams?
Mathematics Probability Level: Misc Level
[Continued from Problem 5900]he probabilitty that Berna hits the dartaboard is 4/7 and ,independenty, the probability Defne misses it is 1/3. What is the probability that Berna misses the dartboard and Defne hits it?
Mathematics Probability Level: Misc Level
In a class, there are 23 boys and 19 girls. 10 of the boys and 7 of the girls have participated in the talent show. If a student is selected at random what is the probability Defne misses it is 1/3. What is the probability that Berna misses the dartboard and Defne hits it?
