1.) A ball is thrown horizontally from the top of a building. What is the vertical velocity of the ball after 1 second? A. 0 m/s
B. 9.8 m/s
C. 4.9 m/s
D. 19.6 m/s

2.) This is a required question
What is the horizontal acceleration of a projectile?

A. 0 m/s2
B. 8.9 m/s2
C. 4.9 m/s2
D. 9.8 m/s2

3.) If air resistance is neglected, at what angle a projectile must be projected to attain the maximum range?

A. 40
B. 75
C. 45
D. 90

4.) Neglecting air resistance, the range of a projectile projected at an angle of 20 degrees is the same as that of if they were released with the same velocity.

A. 50
B. 70
C. 60
D. 80

5.) What do you call the motion of an object with constant acceleration?

A. circular motion
B. uniform motion
C. constant motion
D. uniformly accelerated motion

CAN SOMEONE PLEASE HELP ASAP. THANK U

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We all use gps today, even if we don't drive yet. i bet you have been in the car with a parent and they have asked you to get out your phone to find a specific location. in your car, on the phone, you are using a very sophisticated technology. gps satellites circle the earth twice a day in a very precise orbit and transmit signal information to earth. gps receivers take this information and use trilateration to calculate the user's exact location. essentially, the gps receiver compares the time a signal was transmitted by a satellite with the time it was received. the time difference tells the gps receiver how far away the satellite is. now, with distance measurements from a few more satellites, the receiver can determine the user's position and display it on the unit's electronic map. what type of signal is utilized by the gps satellite?

The position of a dragonfly that is flying parallel to the ground is given as a function of time by r⃗ =[2.90m+(0.0900m/s2)t2]i^− (0.0150m/s3)t3j^. a: at what value of t does the velocity vector of the insect make an angle of 34.0 degree clockwise from the x-axis? b: at the time calculated in part (a), what is the magnitude of the acceleration vector of the insect? c : at the time calculated in part (a), what is the direction of the acceleration vector of the insect?

Which type of wave can travel without a medium