A ball is thrown at an angle of 45° to the ground. if the ball lands 87 m away, what was the initial speed of the ball? (round your answer to the nearest whole number. use g â 9.8 m/s2.)

A electron is released from rest in a uniform electric field oriented from left to right. What happens to the electric potential energy of the proton-electric field system? A. IncreaseB. DecreaseC. Remains the same

Punnett squares are convenient ways to represent the types and frequencies of gametes and progeny in experimental crosses. this punnett square shows the results of a yy x yy cross to form f2 progeny.

4. Two ships leave port at the same time. One sails south at 15 mi/h, and the other sails east at 20 mi/h. Find a function that models the distance, D, between the ships in terms of the time, t (in hours), elapsed since their departure.

What is an ore? an object that has been recycled

How would you write the number 6,500,000,000 in scientific notation? A) 6,5009 B) 6.5 * 1,000,000,000 C) 10 * 6.59 D) 6.5 * 109

How long does it take a car to travel 450 km at 75 km/hr

A free-falling golf ball strikes the ground and exerts a force on it

What are the main activities involved in studying physics?

What is the energy that moves your arms and legs

A moving object can be in equilibrium. Explain.